Estimate the solution to the system of equations. You can use the interactive graph below to find the solution. \begin{cases} y=-2x-5 \\\\ y=2x-2 \end{cases} ⎩ ⎪ ⎪ ⎨ ⎪ ⎪ ⎧ ​ y=−2x−5 y=2x−2 ​

Answers

Answer 1

The solution to the system of equation (x, y) is -3/4 and -7/2

System of Linear Equations

The system of linear equations is the set of two or more linear equations involving the same variables. Here, linear equations can be defined as the equations of the first order, i.e., the highest power of the variable is 1. Linear equations can have one variable, two variables, or three variables. Thus, we can write linear equations with n number of variables.

The equations given are

y = -2x - 5 ...eq(i)

y = 2x - 2 ..eq(ii)

Solving this equation,

x = -3/4, y = -7/2

Using a graph to solve this problem, the point of intersection (x, y) is the solution to the equation.

Kindly find attached graph below

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Estimate The Solution To The System Of Equations. You Can Use The Interactive Graph Below To Find The

Related Questions

Which conclusion is appropriate at the 5% level of significance? check all that apply. Group of answer choices the differences observed in sample means do not provide strong evidence of a difference in mean course load for freshmen, sophomores, juniors and seniors at this university. There are statistically significant differences in mean course loads for freshmen, sophomores, juniors and seniors at this university. This study provides strong evidence that the mean course loads differ for freshmen, sophomores, juniors and seniors at this university. This study provides strong evidence that the mean course loads for freshmen are larger than the mean for sophomores. This study suggests that the mean course loads are the same for freshmen, sophomores, juniors and seniors at this university. We cannot draw a conclusion because conditions for the anova f-test are not met

Answers

A 5% chance exists of concluding there is a difference when there isn't at a significance level of 0.05. Lower levels of significance suggest that you need more proof before you can rule out the null hypothesis.

What is Anova test?

In statistics, the analysis of variance (ANOVA) method is used to compare the means of two groups.

In an experiment with a completely randomized design, samples are at random assigned to either a treatment group or a placebo group.

For instance, if 40 persons are chosen to evaluate the effects of an analgesic,

four groups—Groups A, B, C, and D—could be created. Different dosages of the medication can be administered to Groups A, B, and C, while Group D receives a placebo. Due to the random grouping of the participants

, this is an illustration of a randomized design.

We assume that the sample populations are normally distributed and have the same variances in order for an ANOVA test to display completely randomized design.

Hence, A 5% chance exists of concluding there is a difference when there isn't at a significance level of 0.05. Lower levels of significance suggest that you need more proof before you can rule out the null hypothesis.

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Use Descartes' Rule of Signs to determine how many positive and how many negative real zeros the polynomial can have. Then determine the possible total number of real zeros. (Enter your answers as comma-separated lists.)P(x) = x^3 − x^2 − x − 5number of positive zeros possible number of negative zeros possible number of real zeros possible

Answers

The number of positive and negative real roots of the function

x³ - x² - x - 5 are 1 and 2 respectively.

What is Descartes' Rule?

Descartes' rule of sign is used to determine the number of real zeros of a polynomial function. It tells us that the number of positive real zeros in a polynomial function f(x) is the same or less than by an even numbers as the number of changes in the sign of the coefficients.

Number of positive real roots of f(x) ≤ Number of sign changes f(x)

Number of negative roots of f(x) ≤ Number of sign changes of f(-x)

According to the given questions:

The given polynomial function f(x) = x³ - x² - x - 5

We can observe the number of sign changes in the coefficients

The sign changes only once

hence there is one positive real root

Now, f(-x) = -x³ + x² - x + 5

Clearly sign changes 2 times evenly

Therefore the function has 2 negative real roots

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9 2 8 7 6 5 1 4 3 show the contents of the array above each time an insertion sort changes it while sorting the array into ascending order.

Answers

The array that has been sorted using insertion sorting 1 2 3 4 5 6 7 8 9.

A straightforward sorting algorithm called insertion sort functions like how you might arrange playing cards in your hands.

Initial Pass: 2 9 8 7 6 5 1 4 3

The array's first two members are initially compared using an insertion sort.

Since 9 is bigger than 2, they are not arranged in ascending order, and 2 is not in the proper place. So, switch 9 and 2.

Therefore, 2 is currently kept in a sorted sub-array.

Second Pass: Continue with the next two elements and compare them.

2 8 9 7 6 5 1 4 3

Here, 9 is bigger than 8, therefore both items appear to be in ascending order; as a result, there won't be any switching. Along with 8, 9 is also kept in a sorted sub-array.

Third pass: Currently, the sorted sub-array has two entries, which are 2 and 8.

Moving on to the following two components, which are 9 & 7,

2 7 8 9 6 5 1 4 3

Continue sorting similarly; the results would be 1 2 3 4 5 6 7 8 9.

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the time is 11:06 in 2 hours it will be

Answers

Answer:

Step-by-step explanation:

01:06

Answer:

1:06

Step-by-step explanation:

11:06 + 2:00 = 13:06

13:06-12:00= 1:6

What is 48,570 in scientific notation?

Answers

Answer: 4.857 x 10^4

Step-by-step explanation:

4.857 × 104
4.857 × 10-4
4.857 × 10°
48.57 × 104
Correct answer:
4.857 x 10"

the population of a town increased from 3050 in 2006 to 5500 in 2009. find the absolute and relative (percent) increase. absolute increase: relative increase: % give answers accurate to at least 1 decimal place.

Answers

In the given question, the absolute percentage increase is 1050 and the relative percentage increase is 32.3076%.

What is the percentage increase?

When you want to analyze how a value has evolved over time, a percentage increase is helpful.

Although percentage increase and absolute increase are fairly comparable, the former is more helpful when contrasting different data sets.

For instance, a change from 1 to 51 and a change from 50 to 100 both have an absolute change of 50, but the first change grew significantly more due to the higher percentage growth of 5000% compared to the second change of 100%.

The most popular method of assessing growth is percentage increase because of this.

So, the absolute and relative percentage increase is:

The town's population grew from 3,250 in 2008 to 4,300 in 2010.

2008: P1 = 3250

2010: P2 = 4330

Absolute variation:

Absolute difference = P2 - P1

Absolute difference = 4330 - 3250

Absolute difference = 1050

Relative increase:

Relative percentage = P2 - P1/P1 * 100

Relative percentage = 1050/3250 * 100

Relative percentage = 32.3076

Therefore, in the given question, the absolute percentage increase is 1050 and the relative percentage increase is 32.3076%.

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Correct question:
The population of the town increased from 3,250 in 2008 to 4,300 in 2010. Find the absolute and relative(percent) increase.

Grafica y aproxima el area bajo la curva de f(x)=x³+1 en el intervalo x€[0,2]

Answers

The total area bounded by curve f(x)=x³+1 between (0,2) will be 6 units.

What is Integration ?

The summing of discrete data is indicated by the integration. To determine the given functions that will characterize the area, displacement, and volume that result from a combination of small data that cannot be measured separately and integrals are calculated. The concept of limit is employed broadly in calculus whenever algebra and geometry are applied.

Given Graph = x³+1

Area between interval x€[0,2]

To get the desired area we have to integrate between x€[0,2]

[tex]\int\limits^2_0 {(x^3 + 1)} \, dx[/tex]

∫x³dx + ∫1dx

[tex]\frac{x^4}{4}[/tex] + x + c

We can find the area by lower limit - upper limit

Putting x = 0

we get result as c

Putting x = 2

We get result as 6+c

So desired area will be ( 6+c ) - c = 6

Hence the total area bounded by curve between (0,2) will be 6 units.

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PLEASE HELP ASAP!!!!!! WITH EXPLANATION >:(

Answers

Answer:

D. 7.00 < 210.00; h < 30; 30 hours

Step-by-step explanation:

He needs to do 30 hours because:

7.00 < 210$; representing h < = 30; and then you would equal 30 hours

Definitely not A or B because that would represent a fraction which we don’t want

C, also would not work because it would be the opposite.

( I am not stealing points. )

help plsssssssssssssssss

Answers

Answer: A 121/324

Step-by-step explanation:

1.0489343455493443 is the result so it is irrational

in this fulcrum, the weights are perfectly balanced. how far must the fulcrum be located from the 40 lb. weight if the bar is 9 feet long?

Answers

The distance of 40 lb will be 5ft, according to the question.

What do you mean by distance?

Distance is the sum of an object's movements, regardless of direction. Distance can be defined as the amount of space an object has covered, regardless of its starting or ending position.

According to the given question,

We have the given information:

The fulcrum be located from the 40 lb.

The weight of bar is 9ft long.

Now, we will calculate the distance,

40x = 50(x-1)

40x = 50x - 50

40x - 50x = -50

-10x = -50

x = 5

Therefore, the required answer is 5ft.

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the margin of error is: a. the largest possible sampling error for a specified level of confidence; b. the critical value times the standard error of the sampling distribution; c. the difference between the point estimate and the parameter. a only b only c only a and b b and c a and c all of the above none of the above

Answers

The correct is b i.e; the critical value times the standard error of the sampling distribution

Given options are :

a. The biggest sampling error that can be made while maintaining a certain level of confidence.

b. the critical value multiplied by the sampling distribution's standard error

c. the discrepancy between the parameter and the point estimate.

Margin of error

= C * SE

Where C is critical value of on

of is the Standard error

The multiple of Critical Value and Standard error is the margin of error

Correct Option is b i. e the critical value times the Standard error of Sampling distribution

Therefore, The margin of error is the product of Critical Value and Standard Error.

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A punch recipe calls for 1 1/2 quarts of sparkling water and 3/4 of a quart of grape juice. How much of each ingredient would you need to make 75 quarts of punch?

Answers

The number of each ingredient of water and grape juice you can use for 75 quarts of punch would be = 112.5 of sparkling water and 56.25 of grape juice.

What is recipe?

Recipe is defined as the comprehensive list of items that includes various measurements which is used for making different food meals.

The quantity of sparkling water used for each punch quarts = 1½ = 1.5

1.5 = 1

X = 75

make X the subject of formula;

X = 75×1.5

X = 112.5

The quantity of grape juice used for each punch quarts= ¾ = 0.75

0.75 = 1

y = 75

make y the subject of formula;

y = 0.75×75

y = 56.25

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y+8>10 solve the following inequality

Answers

Answer:

y>2

Step-by-step explanation:

subtract 8 on both sides

Answer:

y > 2

Step-by-step explanation:

y + 8 > 10

Subtract 8 from both sides.

y > 10 - 8

y > 2

Alexis wants to pave a square landing pad out of concrete for her model helicopter.
She has enough concrete to pave 140 square feet. Find the length of each side of the
square landing pad in feet using the formula s = √A where s is the side length and A
is the total area. Round your answer to one decimal place, if needed.

Answers

A Square is a two-dimensional figure that has four sides and all four sides are equal.

The area of a square is given as side²

The formula to find the side length.

s = √A

The length of the side is 11.8 feet.

What is a square?

A Square is a two-dimensional figure that has four sides and all four sides are equal.

The area of a square is given as side²

We have,

The total area of the square landing path:

A = 140 square feet.

The formula to use is given,

s = √A

Now,

s = √140

s = √4 x 35

s = 2√35

[ √35 = 5.92 ]

s = 2 x 5.92

s = 11.8 feet

Thus,

The length of the side is 11.8 feet.

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Write a rule for g(x)=f(x+2) when f(x)=x+1.

Answers

Answer:

g(x) = x+3

Step-by-step explanation:

f(x) = x+1

g(x) = f(x+2)

so g(x) = (x+2)+1

g(x)=x+3

a rectangular crate has length 15 in, width 4 in, and height 10 in. find its volume as surface area.

Answers

Answer:

volume: 600 cubic inchesarea: 500 square inches

Step-by-step explanation:

You want the volume and surface area of a rectangular crate that is 15 in long, 4 in wide, and 10 in high.

Volume

The volume is given by the formula ...

  V = LWH

For the given crate, the volume is ...

  V = (15 in)(4 in)(10 in) = 600 in³

Area

The area is given by the formula ...

  A = 2(LW +H(L +W))

For the given dimensions, the crate has an area of ...

  A = 2((15 in)(4 in) +(10 in)(15 in +4 in)) = 2(60 in² +(10 in)(19 in))

  = 2(60 in² +190 in²) = 500 in²

The crate's volume is 600 cubic inches; its area is 500 square inches.

A persons resting heart rate is typically between 60 and 100 beats per minute. Rushing looks at the watch and counts 8 heartbeats in 10 seconds. Is his heart rate typical?

Answers

Answer: No its not normal

Step-by-step explanation: The question says 60 and 100 beats per minute is normal. Rushing looks at his watch and counts 8 beats in 10 seconds

We can solve by:

[tex]\frac{8}{10}[/tex] = [tex]\frac{x}{60}[/tex] then from that answer we can check if x, the heartbeats falls between 60 and 100.

So to get 60, we have to multiply 10 by 6. We are using proportionality, so we do the same to the numerator to get 8 x 6= 48

We get  [tex]\frac{8}{10}[/tex] = [tex]\frac{48}{60}[/tex]. 48 beats do not fall between 60 and 100, thus the answer is it is not normal.

It is more than 7+3
It is less than 8+5

Answers

Answer:

11 or 12  ....?

Step-by-step explanation:

This seems simple... so simple i feel like im overthinking it (x_x)

Complete the statement Round to the nearest hundredth if necessary
14 m ≈ ? ft​

Answers

Answer: 45.93 ft

Step-by-step explanation:

a rancher has 720 feet of fencing with which to enclose two adjacent rectangular corrals (see figure). what dimensions should be used so that the enclosed area will be a maximum?

Answers

If a rancher has 720 feet of fencing with which to enclose two adjacent rectangular corrals, the dimensions are 90 feet and 120 feet

From the figure

4x + 3y = 720

3y = 720 - 4x

y = 240 - (4/3)x

The area = l × w

Where l is the length

w is the width

Substitute the values in the equation

A = 2x × y

= 2x (240 - (4/3)x)

Apply the distributive property

= 480x - (8/3)x^2

Differentiate the values

0 = (-16/3)x + 480

(16/3) x = 480

x = 480 / (16/3)

x = 90 feet

Then,

y = 240 - (4/3)(90)

= 120 feet

Hence, the dimensions are 90 feet and 120 feet

I have answered the question is general, as the given question is incomplete.

The complete question is

A rancher has 720 feet of fencing with which to enclose two adjacent rectangular corrals (see figure). what dimensions should be used so that the enclosed area will be a maximum?

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a researcher wants to examine the relationship between fat and calories in fast food. data was analyzed using linear regression. fat grams in the food represented x (the independent variable) and total calories in the food item was represented by y. the slope was 13 and the y intercept was 143. predict how many calories would be in a sandwich containing 32 grams of fat?

Answers

The predicted number of calories in a sandwich containing 32 grams of fat is 559.

What is the slope intercept form?

In algebra, the slope-intercept form of a linear equation is a typical approach to express a line on a graph. A linear equation is written as y = mx + b in standard form.

The y-intercept, or place where the line crosses the y-axis, is represented by the letters b and m, respectively. The point where the lines contacts the y-axis is known as the y-intercept, and the slope is a measurement of how steep the line is. Because it explicitly displays the slope and y-intercept, this equation's form is known as the slope-intercept form.

y = mx + b

Where m is the slope, x is the value of the independent variable, and b is the y-intercept. In this case, the slope is 13 and the y-intercept is 143. So, the equation of the line of best fit is:

y = 13x + 143

To predict the number of calories in a sandwich containing 32 grams of fat, you can plug in 32 for x in the equation:

y = 13 * 32 + 143

y = 416 + 143

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from a group of 7 men and 6 women a committee consisting of 4 men and 3 women is to be formed. how many different committees are possible if (a) 2 of the men refuse to serve together?

Answers

500 Different number of committees are possible.

Initially we have 7 men and 6 women.

We have to select 4 men and 3 women to form a committee

Number of men are possible 7C4 = 35

Number of women are possible 6C3 = 20

2 of the men are refusing to server together

so we have to subtract the possibilities when these 2 men are sitting together.

we are considering 2 men are already sitting together.

now, we have only need of 2 men  from remaining 5 men.

number of ways to select 2 men from 5 men is 5C2 = 10

We have to subtract 10 from number of men possible.

Number of men possible when 2 of the men refuse to serve together =

35 - 10 = 25.

Number of possible committees are 25*20 = 500.

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this exercise involves the formula for the area of a circular sector. the area of a sector of a circle with a central angle of 5????/11 rad is 15 m2. find the radius of the circle. (round your answer to one decimal place.) incorrect: your answer is incorrect. m

Answers

The radius of the circle will be 4.6m.

What is area of a circle?

The measurement of the circle's boundaries is called as the circumference or perimeter of the circle. whereas the circumference of a circle determines the space it occupies. The circumference of a circle is its length when it is opened up and drawn as a straight line. Units like cm or unit m are typically used to measure it. The circle's radius is considered while calculating the circumference of the circle using the formula. As a result, in order to calculate the circle's perimeter, we must know the radius or diameter value. The area of the circle will be A = [tex]\pi r^{2}[/tex].

The area of the circle given is = 15 m²

Sector of a circle with a central angle of 5π/11 rad

The area will be (1/2) * r² * Ф

15 = (1/2) * r² * (5π/11)

⇒r² = 30 * (11/5π)

⇒r² = 21.00

⇒r=4.6m

Hence, the radius of the circle will be 4.6m.

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Uppose there are three pipes filling a tank. The first pipe can fill the tank in 5 hours. The second pipe can fill the tank in 8 hours. The third pipe can fill the tank in 11 hours. How much of the tank can the first pipe fill in one hour? how much of the tank can the second pipe fill in one hour? how much of the tank can the third pipe fill in one hour?

Answers

Answer:

Step-by-step explanation:

12. A clothing store has 621 blouses.
they place these on 9 racks. About the
same number of blouses were placed on
each rack. About how many blouses are
on each rack? (equation & sentence

Answers

The answe is 69
621 divided by 9 is 69
Do there are 69 blouses on each rack

Answer:

you have to divide

Step-by-step explanation:

621/9=69 so there are 69 blouses on each of the 9 racks

A recipe for fruit salad includes 1/4 cup of grapes for 4 servings. How many cups of grapes are needed for 40 servings of this fruit salad

Answers

Answer: 2.5

Step-by-step explanation: 40 divided by 4 = 10  1.4 x 10 = 2.5

Answer:

2.5

Step-by-step explanation:

1/4 is equal to 0.25, So if it's 0.25 for 4 servings, the ratio is 0.25:4. You can the divide 40 by 4 and get 10. You can now take that ten and multiply it by 0.25 to get 2.5 or 2 and 1/2

Please help! Lots of points and brainliest!

Answers

4 bracelets and 3 Necklaces are made by the Jeweler.

What is Equation?

Two or more expressions with an Equal sign is called as Equation.

Let us represent Bracelet as B and Necklace as N

B+N=7..(1)

7B+18N=82..(2)

From equation 1,

B=7-N

Now plug in B value in equation 2

7(7-N)+18N=82

49-7N+18N=82

49+11N=82

Subtract 49 on both sides

11N=33

N=3

Now we have to find B

B+N=7

B+3=7

Subtract 3 on both sides

B=4

Hence, 4 bracelets and 3 Necklaces are made by the Jeweler.

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flipping a fair two-sided coin, the probability of getting heads is equal to the probability of getting tails. if the coin is flipped three times consecutively, what is the probability of getting heads at least twice?

Answers

The probability of getting heads at least twice is 0.5

Since we are given two-sided coin, where the probability of getting heads is equal to the probability of getting tails.NO of outcomes in this case is 2,The probability of getting a head = 1/2, similarly probability of getting a  tail is =1/2 .So when a coin is flipped three times, the sample space for the event will be (HHH, HHT, HTH, HTT, THH, THT, TTH, TTT),  H stands for head and T stands for tails, here for tossing the coin the number of outcomes is 8  .So the probability of getting at least two heads is:  4/8= 1/2 =0.5

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an izod impact test was performed on 20 specimens of pvc pipe. the sample mean is 1.25 and the sample standard deviation is 0.25. test the hypothesis that H0: ????

Answers

There is sufficient evidence to conclude that the population standard deviation is different from 0.1.

What is test statistic?

A test statistic is a figure obtained from a statistical analysis. It explains how far your observed data is from the null hypothesis, which states that there is no correlation between the variables or distinction between the sample groups.

Given,

            [tex]H_0:\sigma =0.1\\H_a:\sigma \neq 0.1[/tex]

Test statistic:

Chi square=(20-1)*0.25^2/0.1^2=118.75

df=20-1=19

p-value=CHIDIST(118.75,19)=0.0000

Reject the null hypothesis.

Hence, there is sufficient evidence to conclude that the population standard deviation is different from 0.1.

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How do you find the distance between these two integers? Complete the following statement that answers this question. Count the units between integer and zero. There is______ unit(s) between 0 and 1. There are______ unit(s) between 0 and 1. There are0 and -3. So, the sum of these two values is______ units.​

Answers

Answer: (A) There is 1 unit between 0 and 1.

(B) There are 1 units between 0 and 1

(C) There are 0 and -3 so the sum of these two values is 3 units.

Step-by-step explanation:

How to find a distance between two integers? Easy!

First find the absolute value! Its gonna help a lot!

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alyssa finds the measurement of a rock sample to be 16 grams. what does she now know about the rock? jasmine is a teenager who has been diagnosed with anorexia nervosa what percentage of individuals with anorexia We humans are changing the composition of the atmosphere in many ways. Those changes will directly affect the planets temperature, but the resulting change in temperature will affect other things on the planet that also affect the planets temperature. Suppose that we could magically change the composition of the atmosphere enough to raise the temperature one degree if all other parts of the earth system were held fixed, and after the warming, we allowed the other parts of the earth system to react for a few years or decades. At the end of that time, what would be the total change in the earths temperature?. suppose a 25.00 ml sample of a solution of a diprotic acid of unknown concentration requires 18.73 ml of a solution of 0.300 m koh to reach the end point. what is the molarity of the diprotic acid? If the symbol X represents a central atom, Y represents outer atoms, and Z represents lone pairs on the central atom, the structure A central X atom has two lone pairs. Two Y atoms are attached to X with single bonds, could be abbreviated as XY2Z2.Classify these structures by the hybridization of the central atom.HYBRIDIZATIONS:1. sp2. sp23. sp34. sp3d5. sp3d2ABREVIATIONS:1) XY22) XY33) XY44) XY55) XY66) XY2Z37) XY2Z8) XY3Z29) XY4Z10) XY4Z211) XY3Z12) XY5Z13) XY2Z2 during times of fasting, which type of 'fuel molecule' do liver cells use to generate energy for its own use? A therapist bills the insurance company for a session in which the patient did not show up. 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Once a sneeze is induced, Rebecca measures how fast the air traveled through the nasal passage.Which statement WOULD NOT be an appropriate hypothesis for Rebecca's experiment?A Induced sneezes move air at a faster speed than naturally occurring sneezes.B There is no difference in air speed of induced versus naturally occurring sneezes.C Using pepper as a stimulant induces more sneezing than any other stimulants.D All sneezes move air at the same rate of speed. TRUE/FALSE. in a criminal case, the defendant must convince the court that based on the evidence it is more likely than not that the defendant is not guilty. according to information found on the production analysis page of the inquirer, digby sold 1128 units of daft in the current year. assuming that daft maintains a constant market share, all the units of daft are sold in the nano market segment and the growth rate remains constant, how many years will it be before daft will not be able to meet future demand unless the company adds production capacity? exclude any existing inventory. when people have conditions, such as traumatic brain injury or dementia, what is a good method to improve memory for a current activity? in her woman in the nineteenth century, published in 1845, she sought to apply to women the transcendentalist idea that freedom meant a quest for personal development n exercises 1- 8. find a basis for (a) the column space tmd [-~ - 2 0 -n [-l i - i -!] (b) the null space of each mmrlt. The beam in problem consists of material that will safely support tensile or compressive stress of 30ksi. Based on this criterion, determine the largest distributed load w0(in lb /in) the beam will safely support if it has the cross-section (a); if it has the cross-section (b). digoxin is a drug often prescribed to treat heart ailments. the purpose of a study by parker et al. (a-4) was to examine the interactions of digoxin with common grapefruit juice. in one experiment, subjects took digoxin with water for 2 weeks, followed by a 2-week period during which digoxin was withheld. during the next 2 weeks subjects took digoxin with grapefruit juice. for seven subjects, the average peak plasma digoxin concentration (cmax) when taking water is given in the first column of the following table. the second column contains the percent change in cmax concentration when subjects were taking the digoxin with grapefruit juice [gfj (%) change]. use the cmax level when taking digoxin with water to predict the percent change in cmax concentration when taking digoxin with grapefruit juice.Cmax (ngl/ml) with WaterChange in Cmax with GFJ (%)2.3429.52.4640.71.875.33.0923.35.59-45.14.05-35.36.21-44.62.3429.5