Can someone explain to me why this is supposed to be 21 and not -21

Answer:

The radio station is at the center of a circle with an area of 40,000 square miles.  The furthest point that you could hear the broadcast would be on the outer edge of the circle or at the end of the radius of the circle.  The formula for the area of a circle is:

Area = π[tex]r^{2}[/tex]

So we take what we know and work the formula in reverse.

40,000 = πr²

40,000 / π = r²

12,732.4 = r²

√12,732.4 = √r²

112.84 = r

The radius of a circle with an area of 40,000 square miles is 112.84 miles.  This is the furthest point that you would be able to hear the broad cast.

Step-by-step explanation:

The expression should be written when there is 5 terms and that is equivalent to 5x+y should be likely 5x + y - 2 + 3 - 1.

Since we have to determine the 5 terms

And, it should be equivalent to 5x + y

So here the equation be like

= 5x + y - 2 + 3 - 1

hence, The expression should be written when there is 5 terms and that is equivalent to 5x+y should be likely 5x + y - 2 + 3 - 1.

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Answer:

A.

Step-by-step explanation:

748.11 - 692.40  = 55.71

so you will still owe 55.71

Answer:  A). You owe an additional $55.71.

Hope this helps :)

Answer:

Undefined

Step-by-step explanation:

Answer:

24.67

Step-by-step explanation:.

Answer:

degyddheiodo6w

Step-by-step explanation:

Answer:

Kilogram of chicken = 1

Kilogram of tilapia = 3

Step-by-step explanation:

Cost of chicken = 150 per kilo

Cost of tilapia = 100 per kilo

Number of kilos of each if total cost should not exceed 450

Let :

Number of kilo of chicken = x

Number of tilapia kilo = y

The constraint :

150x + 100y ≤ 450

We could choose some reasonable values of x and y then, test the constraint ;

If x = 1 and y = 3

150(1) + 100(3) = 450

Hence,

1 kilo of chicken with 3 kilos of tilapia offers the greatest combination of Number of kilograms of tilapia and chicken that could be purchased and still satisfy the maximum cost constraint.

Answer:

C. 0.045

Step-by-step explanation:

9514 1404 393

Answer:

  5

Step-by-step explanation:

The bottom left segment has length ...

  84 -49 = 35

So, we can write the proportion relating the whole to that segment.

  84/35 = 24x/50

Multiplying by 50/24, we get ...

  x = (50/24)(84/35)

  x = 5

Answer:

There are 9 marbles in the bag. We pick 2 without replacement and get a probability of 1/6.

Each draw of a marble has a probability associated with it. Multiplying these gives 1/6 so let us assume the probabilities are (1/3) and (1/2).

In order for the first draw to have a probability of 1/3 we need to draw a color that has (1/3)(9)=3 marbles. So let's say there are 3 red marbles. The P(a red marble is drawn) = 1/3.

Now that a marble has been drawn there are 8 marbles left. In order for the second draw to have a probability of 1/2 we must draw a color that has (1/2)(8) = 4 marbles. So let's say there are 4 blue marbles out of the 8.

Since there are 9 marbles to start and we have 3 red marbles and 4 blue marbles, the remaining 2 marbles must be a different color. Let us say they are green.

The problem is: There are 3 red marbles, 4 blue marbles and 2 green marbles in a jar. A marble is picked at random, it's color is noted and the marble is not replaced. A second marble is drawn at random and its color noted. What is the probability that the first marble is red and the second blue?

Answer:

The answer is $30.72

Step-by-step explanation:

25.60 + 20% = 30.72

You have to divide 25.60 / 20% and that would be 5.12 so to the original answer 25.60 you add 5.12.

Final Answer

30.72

Answer: false

Step-by-step explanation:

Answer:

x = 101°

Step-by-step explanation:

180-147 = 32

180-47-33 = 101

also this is not college math what

Answer:

87.175 :)

Step-by-step explanation:

Answer:

noice

Step-by-step explanation:

Answer:

The solution to the system of equations is (0, -3) because that is where the two graphs intersect. It is the only solution since the equations intersect at that point only.

Step-by-step explanation:

We have the two equations:

[tex]f(x)=|x+1|-4\text{ and } g(x)=-2x-3[/tex]

Remember that graphically, the solution(s) of a system of equations is always where the graphs intersect.

We can see that the two graphs intersect at (0, -3).

So, g(0) = -3 and f(0) = -3 also.

And that is the only point of intersection. So the only solution to our system here is (0, -3).

Answer:  4

Step-by-step explanation:

I got it right when i did my math

The equation which represents the given situation is 5(y + 2) = 30 and the value of y = 4.

An equation is the statement of two expressions located on two sides connected with an equal to sign. The two sides of an equation is usually called as left hand side and right hand side.

Given that,

Total number of volunteers = 5

Mai gave each of them the same number of stickers.

Let y be the number of stickers she gave to each of them.

Then she gave 2 more stickers to each of them.

Then number of stickers each has = y + 2

Total number of stickers = 30

5(y + 2) = 30

5y + 10 = 30

5y = 20

y = 4

Hence the number of stickers each one has is 4.

Learn more about Equations here :

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Areas. Square. `A=l^2` ...

Volumes. Cube. `V=s^3` ...

Functions and Equations. Directly Proportional. `y = kx` `k = y/x` ...

Exponents. Product. `a^mxxa^n=a^(m+n)` ...

Radicals. Multiplication. `root(n)(x)xxroot(n)(y)=root(n)(x xx y)` ...

Trigonometry. Trigonometry Ratios. ...

Geometry. Euler's Polyhedral Formula. ...

Vectors. Notation

Answer:

38 students chose to fly

Step-by-step explanation:

add the female and male

Answer:

11 and 4

Step-by-step explanation:

Answer:

left top: 37

right top: 8

left bottom: 14

right bottom: 6

Step-by-step explanation:

i need a brainliest and i hope this helps!

Answer:

The equation is given by:

[tex]n = \frac{7}{10} \times 45.50[/tex]

Step-by-step explanation:

During last years's charity walk, she raised $45.50.

During this years walk, she raised n, which is 7/10 of this amount. So, the equation is given by:

[tex]n = \frac{7}{10} \times 45.50[/tex]

Answer: 45.50=0.7n

Step-by-step explanation:

Answer:

The correct answer is - Non sampling error

Step-by-step explanation:

Sampling errors arises when a sample does not represent the whole population.

It is  difference between the real values of the population and the values derived by using samples from the population.

A non-sampling error refers to an error that occurs during data collection, causing the data to differ from the true values.

Non sampling error are of two types , response error and non response error.

In the given question , the error is a response error.

So , it is an example of Non-Sampling error.

Answer:

its a

Step-by-step explanation:

just did it on edg2021

Answer:

18ft

Step-by-step explanation:

Diameter is double the radius.

36/2=18

Answer:

r = 18 ft

Step-by-step explanation:

The radius is 1/2 of the diameter

r = 1/2 d

r =1/2 ( 36 ft)

r = 18 ft

Answer:

The expression that represents the area of the court is: [tex]24x^2 - 30x + 6[/tex]

Step-by-step explanation:

Area of a rectangle:

A rectangle has length l and width w. The area of a rectangle is:

[tex]A = lw[/tex]

A singles tennis court measures (8x – 2) ft long and (3x – 3) ft wide.

This means that [tex]l = 8x - 2, w = 3x - 3[/tex]

Which expression represents the area of the court?

The tennis court is rectangular, so

[tex]A = lw = (8x - 2)(3x - 3) = 24x^2 - 24x - 6x + 6 = 24x^2 - 30x + 6[/tex]

The expression that represents the area of the court is: [tex]24x^2 - 30x + 6[/tex]

Answer:

a. Isosceles

b. It has two equal angles

Step-by-step explanation:

✅<DCA = <BAC = 50° (alternate interior angles are congruent)

<ACB = 180 - (<BAC + <ABC) (sum of triangle)

<ACB = 180° - (50° + 80°) (substitution)

<ACB = 50°

✅∆ABC is an isosceles triangle judging from the measure of its three angles. ∆ABC has two equal angles. ∆ABC is therefore an isosceles ∆.

Answer:

6 small cubes

Step-by-step explanation:

given in cuboid made from 6 small cubes

Answer:

in a cuboid, there is a total of 36 cubes

Step-by-step explanation:

because, There are 3 layers in total, so three layers of 12 cubes. 12 x 3 = 36 so there are 36 cubes inside the cuboid.

have a wonderful day

(the answer is for this cuboid)