PLEASE I NEED HELP I WILL GIVE YOU BRAINLIEST
in the graph of the inequality x-2y (less than or equal too) 4, which is a value for x on the boundary line and the x axis
4
-2
2
-4

Answer: 4 hours

Step-by-step explanation:

322.58 - 200.14 = 122.44

122.44 divided by 30.61 = 4

It will take Lian's dog 12.5 weeks to finish the remaining food

Fractions are numbers written as a quotient, in which a numerator is divided by a denominator

Given that:

Lian's dog eats 1/20 of a bag of dog food each week

Lian currently has of a bag 5/8 remaining

Since Lian's dog eats 1/20 in one week and 5/8 is remaining.

In order to find the number of weeks it will take the dog to finish the remaining food. We can say:

Number of weeks = remaining food / food for one week

Number of weeks = (5/8) / (1/20) = 12.5 weeks

Therefore,  it will take Lian's dog 12.5 weeks to finish the remaining food

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Complete Question

Lian's dog eats 1/20 of a bag of dog food each week. Lian currently has 5/8 of a bag remaining.

How many weeks will it take Lian's dog to finish this remaining food?

Answer:

(2x-286)

Step-by-step explanation:

Answer:

(2x-286

Step-by-step explanation:

step by step

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Answer:

144 if u multiply u will get ur answer because it is asking for the least number if 144 is to high that its got to be 1 which it can't that's if u divide it answer - 144

Police must investigate 50 cars to find the​ car.

What is permutation and combination?

A combination could be a choice of things from a collection that has distinct members, such the order of choice doesn't matter.

Main body:

there are 2 possible position for the first letter.

there is 1 possible position for the second letter.

there are 5 possible position for the first number.

there are 4 possible position for the second number.

there is 3 possible position for the third number.

there are 2 possible position for the second number.

there is 1 possible position for the third number.

the total possibilities are 2 * 1 * 5 * 4* 3 * 2 * 1 = 50

Or we can solve by saying:

There are 2 letters T and V that can be in the first two positions in any order that is 2!, and there are 5 numbers (1,4 , 6 , 0 and 3) that can be in the last 5 positions in any order that is 5!.

Therefore possible arrangement

2! * 5! = 2 * 1 * 5 * 4 * 3 * 2 * 1 = 50

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The dimensions of the rectangle that will maximize the area of the window are length, L = 3.41 feet and width, w = 3.41 feet

Given: Perimeter (P) = 19 feet

Perimeter of window = Perimeter of rectangle + Perimeter of semicircle

P = 2(2r + L) + πr

where r = radius of the semicircle and   L = length of the rectangle

width(w) of the rectangle = 2r

Note: the diameter of the semicircle is the width of the rectangle

19 =  2(2r + L) + πr

19 = 4r + 2L + πr

2L = 19-4r-πr

L = 19/2 -2r- πr/2

Find the area (A) of the window:

A = Area of Rectangle + Area of Semicircle

A = 2rL + 1/2πr²

Put L into A = 2rL + 1/2πr²:

A = 2r(19/2 -2r- πr/2) + 1/2πr²

A = 19r - 4r² - πr² + 1/2πr²

A = 19r - 4r² - 1/2πr²

To maximize the area, differentiate both sides and set A' = 0

A = 19r - 4r² - 1/2πr²

A'  = 19 - 8r - πr

0  = 19 - 8r - πr

8r + πr = 19

r(8 + π) = 19

r = 25/(8 + π)

width(w) = 2r

w = 2[19/(8 + π)]

w = 38/(8 + π)

w = 3.41 feet

put r = 19/(8 + π) into L = 25/2 -2r- πr/2:

L = 19/2 -2(19/(8 + π))- π(19/(8 + π))/2

L = 19/2 - 38/(8 + π) - 19π/2(8 + π)

L = [19(8 + π) - 19(2)- 19π] / [2(8 + π)]

L = 38/(8 + π)

L =  3.41 feet

Therefore, the dimensions of the rectangle are length of 3.41 feet and width of 3.41 feet

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Answer:

The answer is third one, 6 and 7/20.

Step-by-step explanation:

First, rewrite the decimal number as a fraction with 1 as the denominator.

[tex]\frac{6.35}{1}[/tex]

Then, multiply to remove 2 decimal places.

[tex]\frac{6.35}{1} *\frac{100}{100} = \frac{635}{100}[/tex]

Next, find the GCF(Greatest common factor) of 635 and 100, which is 5.

Divide both the numerator (top) and denominator (bottom) by the GCF (5)

Simply the improper fraction.

There you go!

Emma would need to invest about $320 to increase her value by $480 over the course of 8 years.

We may use the compound interest formula to determine how much Emma would need to invest:

[tex]\mathrm{A = P(1 + r/n)^{(nt)}}[/tex]

Where:

A is equal to the final sum, in this case $480.

P is the principal sum, which represents the initial investment that we're looking for.

r = the yearly interest rate (0.055 in decimal form, or 5.5%)

n = the number of times the interest is compounded annually (in this case, n = 1 because it is compounded annually).

t = the number of years, in this instance 8 years.

Let's substitute the known values into the formula and solve for P:

[tex]\mathrm{480 = P(1 + 0.055/1)^{(1\times8)}}[/tex]

Simplifying:

[tex]480 = \mathrm P(1.055)^8[/tex]

Dividing both sides by (1.055)⁸:

[tex]\mathrm {P = \frac{480 }{ (1.055)^8}}[/tex]

P ≈ $480 / 1.50

P ≈ $320

Hence the amount to be invested is $320.

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Answer:

The answer is A) [tex]y=4x[/tex]

Step-by-step explanation:

This is because y directly corresponds to x, if x is 1, then y = 4, if x is 2, then y = 8 and so on.

The students weren't assigned the treatments (new menu item) at random.

In an experiment, randomization refers to assigning volunteers randomly to the treatment. For example, we may define randomization as setting people to therapy at random.  

The results are fair because randomization eliminates bias. To make the results of the experiment precise, it ensures that the groups created for experimenting are as similar to one another as possible.

In the given example, the menu items are not randomly assigned. Because the students were given a choice to choose a menu item instead of selecting the new menu item randomly.  If randomly assigned all the new menu items will have an equal probability of being chosen.

Therefore, option b is the correct option.

The complete question is -

Thirty-six students at a local middle school were randomly selected to participate in a taste test to select a new menu item for a cafeteria. Each student was given a choice between the macaroni and cheese and the Cajun potato barrels. From the sample, 20 students selected macaroni and cheese and 16 students chose the Cajun potato barrels. Each student was asked to rate the item they chose on a scale from 1 (extremely dislike) to 9 (extremely like). Which of the following prevents this study from being a well-designed experiment?

a) There was no replication because students did not eat both menu items.

b) The treatments (new menu item) were not randomly assigned to the students.

c) An item that is currently on the menu should have been used as a control.

d) Students should not have been randomly selected.

e) There were no problems, and the study was a well-designed experiment.

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The result of hypothesis test on the given data null hypothesis is accepted and alternate hypothesis is rejected.

Hypothesis testing is a type of measurable deduction that utilizes information from an example to make determinations about a populace boundary or a populace probability distribution. Initial, a conditional supposition that is made about the boundary or dispersion. This supposition that is known as the invalid speculation and is meant by H0.

We have,

mean(X) = 162, n = 20 , standard deviation(σ) = 45,

Let us consider Null hypothesis H₀: μ=145

And alternate hypothesis Hₐ : μ[tex]\neq[/tex] 145

So, Z = X -  μ/σ/√n

Z = 162 - 145/45/√20 = 1.68

Now Level of significance(α)= 0.05

From the Z table,

Z = 1.96

So,  1.68 < 1.96

Thus, Null hypothesis is accepted and alternate hypothesis is rejected.

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Answer: Y = 8

Step-by-step explanation: If x = to 0 then 0+y=8 therefore y=8

Hope this helps

Answer:

y = 8

Step-by-step explanation:

Given information,

→ x + y = 8

→ x = 0

Now the value of y will be,

→ x + y = 8

→ 0 + y = 8

→ y = 8 - 0

→ [ y = 8 ]

Hence, the value of y is 8.

The probability that Shelia is diagnosed as having gestational diabetes is 0.003.

In the given question,

A patient is classified as having gestational diabetes if the glucose level is above 140 milligrams per deciliter one hour after a sugary drink is ingested.

Mean 129 mg/dl and standard deviation 9 mg/dl.

I have to find the probability that Shelia is diagnosed as having gestational diabetes

Z value corresponding to the mean result of 140 mg/dl is

(140-129)/4 = 2.75

Thus, the probability that Shelia is diagnosed as having gestational diabetes = P(Z > 2.75) = 0.003

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The right question is:

Shelia's doctor is concerned that she may suffer from gestational diabetes (high blood glucose levels during pregnancy). There is variation both in the actual glucose level and in the blood test that measures the level. A patient is classified as having gestational diabetes if the glucose level is above 140 milligrams per deciliter one hour after a sugary drink is ingested. Shelia's measured glucose level one hour after ingesting the sugary drink varies according to the Normal distribution with mean 129 mg/dl and standard deviation 9 mg/dl. Let LL denote a patient's glucose level.

If the mean result from the four tests is compared to the criterion 140 mg/dl, what is the probability that Shelia is diagnosed as having gestational diabetes?

If a certain unit of a commodity is produced with a marginal cost of [tex]\frac{dc}{da} =9x^{2}+4x+15x^{1/4} +10[/tex], the cost of producing the first 126 units is 289.4

How to differentiate a function?

Differentiation is a way of showing rate of change of a function at a given time.

The given function  [tex]\frac{dc}{da} =9x^{2}+4x+15x^{1/4} +10[/tex],

Differentiate with respect to x

[tex]\frac{dc}{da} =18x+4+\frac{15}{4} x-^{3/4}[/tex]

input the value 100 for the value of x,

This implies that [tex]\frac{dc}{da} =18x+4+\frac{15}{4} x-^{3/4}[/tex]

[tex]\frac{dc}{da}[/tex]=1800+4+[tex]\frac{15}{4}[/tex] x[tex]\frac{1}{\sqrt[4]{100^{3} } }[/tex]

[tex]\frac{dc}{da}=1800+4+\frac{15}{4}x\frac{1}{3.16}[/tex]

Simplifying further

[tex]\frac{da}{da} =1804+4.75[/tex]

[tex]\frac{dc}{da} =1808.75\\[/tex]

To produce the first 16 units,

[tex]\frac{1808.75}{100} }[/tex] x [tex]\frac{16}{1}[/tex]

The cost of producing the first 16 units is 289.4

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a. The transformed equation is given as follows: h(x) = |x - 2| - 3.

b. The graph of the two functions is shown by the image presented at the end of the answer.

The translations are movements to the triangle in each of these directions:

The parent function in this problem is given as follows:

f(x) = |x|.

The first translation was a vertical translation three units down, hence we have that:

g(x) = f(x) - 3 = |x| - 3.

The second translation was a horizontal translation two units right, hence the have that the definition of the transformed equation h(x) is given as follows:

h(x) = g(x - 2) = |x - 2| - 3.

The graph of the functions is given by the image shown at the end of the answer, and the translations are verified on every point of the function, but especially the vertices.

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The binomial expansion of (y - 3)⁴ is B) y⁴ - 12y³ + 54y² - 108y + 81.

The Binomial Theorem is the method of expanding an expression that has been raised to any finite power.

An expression of two terms having a degree n can be represented as,

(a - b)ⁿ = [tex]^nC_na^n - ^nC_{n-1}a^{n-1}b+^{n}C_{n-2}a^{n-2}b^2+...(-1)^n\times^nC_0a^0b^n[/tex].

Given, (y - 3)⁴ = [tex]^4C_4y^4.3^0 - ^4C_3y^3.3 + ^4C_2y^23^2-^4C_1y.3^3+^4C_0y^03^4[/tex].

(y - 3)⁴ = y⁴ - 12y³ + 54y² - 108y + 81.

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The equations out of the following that are true would be:

The remaining two I am not certain if they are true or not. The way they were laid out made little to no sense. If you could maybe evaluate further on the other options, perhaps I can double check them for you and see if there are any other remainder options that are true. However, I know for certain that A and B are true.

Each of the three angles of the triangles whose sum of angles is 180 degree measures 75°, 65°, and 40°

An easy geometric instrument like a protractor is used to measure angles. A protractor is employed more frequently than a compass. Angle measurement is important for determining the precise angle. In geometry, there are several sorts of angles that we face in our daily lives, and we may measure angles using these tools.

Basic geometric instruments like a protractor and a compass are used to measure angles. These instruments aid in determining an angle's precise measurement. A protractor aids in producing an accurate angle measurement, while a compass aids in creating the angle. Angles can be measured in three different ways: in degrees, radians, and revolutions.

Here, we have

Let the largest angle be x degrees, the median y, and the smallest z.

x = 2y - 55

z = y - 25

x + y + z = 180

Substituting for x in the last equation:

2y - 55 + y + z = 180

3y + z = 235  

From the second equation:

- y + z = -25     Subtract this from the last equation:

4y = 260

y = 65 degrees

z = 65 - 25 = 40 degrees.

and x = 180 - 65 - 40 = 75 degrees.

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Answer:

32−4x=12,

25 over x end fraction plus 4 equals 9 ((25)/(x)+ 4 equals 9), and

x over 5 end fraction plus 5 equals 6 ((x)/(5) plus 5 equals 6)

Step-by-step explanation:

hope this help

Answer:

28

Step-by-step explanation:

substitute the given values into the expression

x(2 - 4y² )

= - 2(2 - 4(- 2)² )

= - 2(2 - 4(4))

= - 2(2 - 16)

= - 2(- 14)

= 28

Given that the pay was $44,000 last year and $53,000 this year, the compensation will have increased by 20.45%.

In essence, percentages are fractions with a 100 as the denominator. We place the percent sign (%) next to the number to indicate that the number is a percentage. For instance, you would have received a 75% grade if you answered 75 out of 100 questions correctly on a test (75/100). Percentage is defined as "out of 100." Similar to fractions and decimals, percentages are used in mathematics to represent subsets of a whole. When expressing a sum as a percentage, 100 equal parts are considered to make up the whole.

Here,

Salary of staff last year=$44,000

Salary of staff this year=$53,000

The percent increase,

=(53000-44000)/44000*100

=20.45%

The percent increase in the salary will be 20.45% as the salary last year was $44,000 and the salary this year is $53,000.

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Answer:

200

Step-by-step explanation:

To find that out, you divide 1,000 by 5.

1,000 ÷ 5 = 200

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Answer: 200

Step-by-step explanation: 1000 divided by 5 = 200

Assuming the person's weight and magnitude, we can estimate their weight to be 491N.

A mathematical object's magnitude or size defines whether it is greater or smaller than other items of its kind.

In formal terms, an object's size can be thought of as the outward manifestation of an ordering—of the class of objects to which it belongs.

So, the person's weight will be:

The scale calculates the floor's usual upward force on the passenger.

The most force is produced when going up (when starting an upward trip or ending a downward trip).

The normal force is lowest when there is a downward acceleration.

Regarding any such situation

∑F y​ =ma y changes to +391Nmg = ma for halting and +591Nmg=+ma for starting. (Where a represents the size of the acceleration.)

Add these two simultaneous equations to eliminate a and determine mg:

+591N−mg+391N−mg=0

OR

982N–2mg=0

Fg​ = mg = 982N/2​ = 491N

Therefore, assuming the person's weight and magnitude, we can estimate their weight to be 491N.

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Complete question:

A person stands on a scale in an elevator. As the elevator starts, the scale has a constant reading of 591N. As the elevator later stops, the scale reading is 391N. Assuming the magnitude of the acceleration is the same during starting and stopping, determine the weight of the person.

The plane divide the circle into rn regions.

What is circle?

A circle may be a form consisting of all purposes in a very plane that ar at a given distance from a given point, the centre. Equivalently, it's the curve copied out by a point that moves in a very plane so its distance from a given point is constant.

Main body:

Suppose that n circles divide the plane into rn regions. Now you add another circle, C, that non-trivially intersects each of the first n circles. Start at any point on C and travel around C; you will cross one of the other n circles 2n times.

If p0 and p1 are two consecutive crossings, the arc of C from p0 to p1 divides one of the original rn regions into two smaller regions. You do this 2n times,that gives you a recurrence,

rn+1=rn+some simple function of n,

and you can fairly easily turn it into an expression for rn that is just a summation. If you do it right, it’s a summation that you can evaluate pretty easily in closed form to get a formula for rn.

Hence , the plane divide the region into rn regions.

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The probability that you win the game is 50%.

The game is symmetrical for you and your opponent. Thus, your probability of winning is as good as your opponent's, so, you have a 50% of winning.

Symmetry goes into play in probability theory in this way: if different outcomes are equivalent, they would have the same probability.

A symmetrical distribution happens when the values of variables come at regular frequencies and usually the mean, median, and mode all happen at the same point.

In general, if there are N symmetrical outcomes, the probability of any given one of them happening is taken to be 1/N.

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The given trapezoid ABCD is an isosceles trapezoid and has vertices a(2, 4), b(5, 4), c(7, 1), and d(0, 1).

Quadrilaterals called trapezoids have two parallel and two non-parallel sides. It also goes by the name Trapezium. A trapezoid is a closed, four-sided form or figure that has a perimeter and covers a specific area. It is a 2D figure rather than a 3D one. The bases of the trapezoid are the sides that are parallel to one another. Legs or lateral sides refer to the non-parallel sides. The height is the separation between the parallel sides. This article provides formulas for the area of the trapezium as well as its types, properties, and other trapezoids.

Here,

Segments AB and CD are parallel and 3 units apart.

Point D is 2 units left of point A, and point C is 2 units right of point B. The trapezoid is symmetrical about the line x = 3.5, so is isosceles.

The given Trapezoid ABCD that has given vertices a(2, 4), b(5, 4), c(7, 1), and d(0, 1) is a isosceles trapezoid.

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Answer:i am pretty sure it is c

Step-by-step explanation:

this is because it says Which graph best shows how many days each project has lasted? and c is the only one that is talking about days

The value of the side c which is the hypotenuse of the given right angle triangle using Pythagoras theorem is; c = √148

Pythagoras Theorem is simply the way that we can find the missing length of a right angled triangle. The right angle triangle has three sides, namely the hypotenuse (which is the longest side), Opposite (which does not touch the hypotenuse) and then the adjacent side (which is between the opposite side and the hypotenuse).

The formula is literally;

c² = a² + b²

where;

c is hypotenuse and a and b are opposite and adjacent sides. Thus;

c² = 2² + 12²

c² = 4 + 144

c² = 148

c = √148

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Answer:

45, odd

Step-by-step explanation:

54-9=45