ANSWER ASAP!!!!!!!!!!!!!!!

Choose the scatter plot that suggests a linear relationship between x and y.

Answer:

Step-by-step explanation:

a = 4, b = -5, and c = -7

for a + 2bc

4 + 2(-5)(-7)

4 + 70

74

for 3a

3(4)

12

I'm not sure if the 2 parts are connected but if you add them, the answer is 86. If you subtract them, the answer is 62. If you multiply them, the answer is 888. If you divide them, the answer is 7/6.

Could you please give me brainliest? Thank you!

The value of the expression illustrated as 1.5(6t+2) is 9t + 3.

Expression is simply used in Mathematics to show the relationship between the variables that are illustrated. In this case, this depicts the information given.

Based on the information, the expression is illustrated as:

1.5(6t+2)

Open the parentheses

(1.5 × 6t) + (1.5 × 2)

= 9t + 3.

The value is 9t + 3.

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Complete question

Find the value of the expression given 1.5(6t+2) i

Answer:

Leah runs:

400 meters per minute

Step-by-step explanation:

2000 meters ⇒ 5 minutes

A meters ⇒ 1 minute

A = 2000 meters * 1 minute / 5 minute

A = 400 meters

The speed of wind is 380 miles per hour.

What is speed?

Velocity is the pace and direction of an object's movement, whereas speed is the time rate at which an object is traveling along a path.

Here, we have

The plane has a cruising speed of 200 miles per hour when there is no wind. at this speed, the plane flew 500 miles with the wind in the same amount of time it flew 300 miles against the wind.

We have to find the speed of the wind.

Time = Distance/speed

Time = 500/200 = 2.5hrs

When the plane moves against the wind its effective speed reduces as it has to overcome the opposing force of the wind since it is given that it cover's a distance of 300 miles at the same time we can write

2.5 = 300/ V(plane) - v(wind)

2.5 = 300/500- v(wind)

v(wind) =380mph

Hence, the speed of the wind is 380mph.

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Answer:

y value , r i = y i − y i ^

Step-by-step explanation:

Residual = actual y value − predicted y value , r i = y i − y i ^ . Having a negative residual means that the predicted value is too high, similarly if you have a positive residual it means that the predicted value was too low. The aim of a regression line is to minimise the sum of residuals.

The multiple regression linear regression equation is:

i = -20000 + -60000*x1i + 40000*x2i

The multiple regression equation here will be of the form

i = a*x1i + b*x2i + c

Where i is the annual revenue

a is the coefficient of x1i which is distance from CBD

where b is the coefficient of x2i average price of a dish

C is the constant term.

Given that moving one mile away from the CBD x1i , the annual revenues will i will decrease by $60000. So, the coefficient of x1i, a is -60000

Given that increasing the average price of dish x2i by $1 , the annula revenue will i will increase by $40000. So the coefficient of x2i, b is 40000

The data shows  that the restaurant at the center of the CBD which means, x1i = 0 and giving away its food for free which means x2i = 0 is resulting in a loss of $20000. so the value of the constant term is c=20000.

so the multiple regression linear regression equation is:

i = -20000 + -60000*x1i + 40000*x2i

hence option A is correct

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The ball will land 67.381 feet away.

Thus, option (B) is correct.

Given:

v = 62 feet / second

[tex]\theta[/tex] = 15

h = 2.2 feet

Using the formula

Horizontal range = [tex]\dfrac{v \;cos\; \theta\; [v \;sin\;\theta + \sqrt{v^2\;sin\;\theta + 2gh]}}{g}[/tex]

Substituting the value back into the formula as

Horizontal range = [tex]\dfrac{62 \;cos\; (15)\; [62 \;sin\;(15)+ \sqrt{(62\;sin\;(15))^2 + 2g*2.2]}}{g}[/tex]

                            = 67.381 feet

Therefore, the distance is 67.381 feet.

Thus, option (B) is correct.

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The question attached here seems to be incomplete, the complete question is:

A tennis player hits the ball with an initial speed of 62 feet per second at an angle of 15", from a height of 2.2 feet. How far away does the ball land in feet? (5 points)

56.372 feet

67.381 feet

60.646 feet

47.293 feet

The expression -5g + 15h - 25 can be simplified as -5(g + 3h - 5)

Expressions in math are mathematical statements that have a minimum of two terms containing numbers or variables, or both, connected by an operator in between. The mathematical operators can be of addition, subtraction, multiplication, or division. For example, x + y is an expression, where x and y are terms having an addition operator in between. In math, there are two types of expressions, numerical expressions - that contain only numbers; and algebraic expressions- that contain both numbers and variables.

In the question given, the expression is -5g + 15h - 25;

We have to simplify this to by factoring the expression.

-5g + 15h - 25 = -5(g + 3h - 5)

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The proportion should be sufficiently demonstrated to be lower than 49% at the 0.05 level.

Given,

Less than 49% of a newsletter publisher's subscribers, in their estimation, own a personal computer.

A potential advertiser wants to verify this claim for marketing purposes.

The marketer chooses to reject the null hypothesis after running a test with a 0.05 level of significance.

We have to determine the conclusion regarding the publisher's claim;

Here,

Null and Alternative hypothesis;

H₀ = P ≥ 0.49

H₁ = P < 0.49 (Left tailed test)

The significance level is 0.05

So,

0.05 < 0.49

Then,

At the defined meaning level, it is chosen to reject the null hypothesis.

Therefore,

There should be sufficient evidence that the proportion is lower than 49% at the 0.05 level.

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The standard deviation of the sampling distribution is 0.03

Instructor number is calculated as - (failure /100)

Number of failures for instructor A = 13 = 0.13

Number of failures for instructor B = 0 = 0.

Number of failures for instructor C = 11 = 0.11

Number of failures for instructor D = 16 = 0.16

Calculating mean -

Mean(m)

= 0.13 + 0.11 + 0.16) / 3

= 0.4 / 3

= 0.13

Calculating the Standard deviation -

Σ(X - m)² / N - 1

Σ(0.13 - 0.1333)² + (0.11 × 0.1333)² + ( 0.16 - 0.1333)² = 0.001266

= 0.001266 / 2

= 0.00063343

= √0.00063343

= 0.025168

= 0.03

Complete question -

The chair of the operations management department at Quality University wants to construct a p-chart for determining whether the four faculty teaching the basic P/OM course are in control with regard to the number of students who fail the course. Accordingly, he sampled 100 final grades from last year for each instructor, with the following results: Instructor Number of Failures Prof. A 13 Prof. B 0 Prof. C 11 Prof. D 16 What is the estimate of the standard deviation of the sampling distribution for an instructor's sample proportion of failures?

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When the population starts out with 8 people and triples, it will take 5 years to reach 1,944.

The definition of an equation in algebra is a mathematical statement that demonstrates the equality of two mathematical expressions. For instance, the equation 3x + 5 = 14 consists of the two equations 3x + 5 and 14, which are separated by the 'equal' sign.

Here,

Initial population=8

Final population=1944

Rate of increment=3ˣ

1944=8*3ˣ

1944/8=3ˣ

243=3ˣ

3ˣ=3⁵

x=5

It will take 5 years for the population to reach 1,944 when started with with the population of 8 and increase by 3ˣ.

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The sample space for the single digit even number = {2, 4, 6, 8}

A sample space is a set of potential results from a random experiment. The letter "S" is used to denote the sample space.

Events are the subset of possible experiment results. Depending on the experiment, a sample space could contain a variety of results.

Given that,

Layla thinks about a positive single digit even number.

There are four single digit even numbers 2, 4, 6 and 8.

The sample space for the single digit even number = {2, 4, 6, 8}

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Answer:

width = 20 ft; length = 33 ft

Step-by-step explanation:

The formula for perimeter of a rectangle is P = 2l + 2w

Given that the length is seven less than twice its width, we have

[tex]l=2w-7[/tex]

We need to have only one variable or we can't solve.

Thus, we have:

[tex]106=2(2w-7)+2w\\106=4w-14+2w\\106=-14+6w\\120=6w\\20=w\\\\l=2w-7\\l=2(20)-7\\l=40-7\\\\l=33[/tex]

Answer:

97

Step-by-step explanation:

< LMN = 33

The sum of the interior angles equal 180

180 - 92 - 55 = 33

<QM (can't read the last letter 50

180 - 45 - 85 = 50

<LMQ This is a straight angle and straight angles are 180

180 - 33 -50 = 97

Answer:

Step-by-step explanation:

Half-life of iodine-133 is 21.7 hours .

FR = 0.5n  (fraction remaining)

n = number of half lives that have elapsed.

FR = 4.7x102 / 5.5x102 = 0.8545

n = to find

0.8545 = 0.5n

log 0.8545 = n log 0.5

-0.0683 = -0.301 n

n = 0.227 half lives have elapsed

Since this is equal to 295 minutes, we can easily find what 1 half life is

0.227 / 295  = 1 / x

x = 1300 min = 21.7 hours

The amount of time it takes for the concentration of a given reactant to reach half of its initial concentration is known as the half-life of a chemical reaction  (i.e. the time taken for the reactant concentration to reach half of its initial value).

It is commonly expressed in seconds and is represented by the sign t1/2 .

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The equation of the line passing through the point (-1, -5) with slope = 6 is y = 6x - 1

The coordinates of the point = (-1, -5)

The slope of the line is the change in y coordinates with respect to the change in x coordinates of the line

The slope of the line m = 6

The slope intercept form is

y = mx + b

Where m is the slope of the line

b is the y intercept

Substitute the values in the slope intercept form

-5 = 6(-1) + b

-5 = -6 + b

b = -6+5

b = -1

The slope intercept form

y = 6x - 1

Therefore, the equation of the line is y = 6x - 1

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

The complete question is:

Write the slope-intercept form of the equation of the line through the given point with the given slope. Through (-1,-5), slope =6

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answer:

no, because 0+0≠1 and 100+-49≠1 so the values are not a part of the system.

step-by-step explanation:

for this question, plug in the x & y values into the equation x+y=1. if the values add up to be 1, then it's possible for the system to have those solutions. hope that helps!

The minimum number of students required in a school are 102 , it can be calculated by multiplying the 2 quantities.

What is arithmetic?

Arithmetic is an elementary a part of mathematics that consists of the study of the properties of the normal operations on numbers—addition, subtraction, multiplication, division, involution, and extraction of roots.

Main body:

Total grades = 1 to 6 = 6

minimum students in each grade  required = 17

total students required = 6*17

                                       = 102

hence total minimum number of students required in a school are 102.

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The normal distribution with a mean of 0 and a standard deviation of 1 is known as the standard normal distribution.

The usual normal distribution is then followed by the z variable. A value of the x variable's z variable, also known as the z-score of the x variable, indicates how many standard deviations from the mean it is.

The area under the normal distribution curve must be calculated that lies between

z=−1.56 and z=1.56

Using the standard normal table, the area is calculated as:

P(−1.56<z<1.56)

=P(z<1.56)−P(z<−1.56)

=P(z<1.56)−(1−P(z<1.56))

=0.9406−(1−0.9406)

=0.8812

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The complete question is

if z is a standard normal variable, find the probability. the probability that z lies between -1.56 and 1.56 is

if the null hypothesis is rejected in hypothesis testing the alternative hypothesis is true.

The relationship between important factors of interest and any apparent connection, according to a competing theory, is most certainly not accidental. The opposite of a null hypothesis is an alternative hypothesis. If we are able to rule out the null hypothesis, it signifies that we have enough data to support the alternative hypothesis. In one test, we cannot rule out both possibilities.

If one is disproven, it indicates that there is evidence to support the other. The opposing view is that a study's potential conclusion will materialize. It claims there is no coincidence in the relationship between important components of interest and the observed connection. As a result, the alternative hypothesis is true if the null hypothesis is disproved during hypothesis testing.

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Answer:

60 minutes

Step-by-step explanation:

Saturday = 16 minutes

Sunday = 28 minutes + 16 minutes = 44 minutes

Saturday + Sunday = 44 + 16 = 60 minutes

Answer:

This may not help but, If you have any notes try using notes to solve this.
Or you can maybe ask your teacher to go over it when you both have free time or maybe have your teacher do a practice problem before or after class! That is what I would do but I hope it helps you! Good luck!

Answer:

A.

Step-by-step explanation:

After 9 hours, Singer A and Singer B will both charge the same amount.

An equation in French is defined as having one or more variables, whereas an equation in English is any well-formed formula consisting of two expressions combined with an equals sign.

Solving a variable equation includes determining which variables' values result in equality. Unknowns are the variables for which the equation must be solved, while equation solutions are the unknown values that satisfy the equality. An equation is a mathematical phrase with two equal sides separated by an equal sign. An equation is 4 + 6 = 10. We can see 4 + 6 on the left side of the equal sign and 10 on the right.

The Singer A's initial fee is $50.

Singer A's hourly rate is $10.

Singer B's initial fee was $95

Singer B's hourly wage is $5.

Assume the duration after which both singers will charge the same amount = x.

Then 50 +10x =95+5x

10x-5x=95-50

5x=45

x=45/5

x=9 hours

So, after 9 hours, Singer A and Singer B will both charge the same amount.

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The set of inequalities formed for the bounce house of Natalie are-

200x + 80y ≤ 1200 and 3x + 2y ≥ 20.

The data for the people enrolled for the bounce house.

Let 'x' be the number of adults.

Let 'y' be the number of children.

Then,

Weight of adult = 200 pounds.

Weight of children = 80 pounds.

maximum weight = 1200 pounds

Then, equation becomes-

200x + 80y ≤ 1200

For the price.

adults -$3 each and

children - $2 each

Minimum profit at least $20

3x + 2y ≥ 20.

Thus, the set of inequalities are-

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Answer:

B

Step-by-step explanation:

Round 64.12 and 7.4 to whole numbers that divide nicely, and are CLOSE to the original numbers.