22. There are 31 girls and
25 boys in the marching band. When
the band marches, they are in 7 rows.
How many people are in each row?

Answer:

3

4

5

Step-by-step explanation:

Answer:

9, 3024, 4 and 24

Step-by-step explanation:

much love

Answer:

4 ft

Step-by-step explanation:

the width of two triangles is given as 8 just divide by 2 since answer is asking for only one triangle

Answer:

4

Step-by-step explanation:

Divide 8 by 2.

Answer:-40

Step-by-step explanation:

Because that means below 0

Answer:

10

Step-by-step explanation:

Answer:

the answer is 3

Step-by-step explanation:

Answer: If this is for khan academy the mean is three.  :D

Step-by-step explanation:

Answer:

no, its 11 for the first one and 45 for the second

Step-by-step explanation:

Answer:

No 16 is 11 and 17 is 45%

Could you heart me and mark me ect.

Answer:

300000

Step-by-step explanation:

Answer: 3,000,000

Step-by-step explanation:

Answer:

Approximately 883,572 people

Step-by-step explanation:

I'm assuming the region is a circle.

The formula for finding the area of a circle is A=πr².

Since we know that the diameter of the region is 15 miles, and a diameter is 2 times the radius, the radius must be 7.5 miles. We also know that π is equal to 3.14159265359.

A=πr²

A= 3.14159265359×7.5²

A= 3.14159265359×56.25

A=  176.714586764

The region has an area of 176.714586764 square miles.

176.714586764×5000=883572.933822

We can round this number to the nearest whole, but since we cannot have part of a person, the answer is approximately 883,572 people.

Final answer:

To find the number of people who live in a region with a 15-mile diameter and a population density of 5000 people per square mile, we can calculate the area of the region and then multiply it by the population density.

Explanation:

To find the number of people who live in the region, we need to calculate the area of the region and then multiply it by the population density. The region has a 15-mile diameter, so the radius is half of that, which is 7.5 miles. The formula for the area of a circle is A = πr^2, where π is approximately 3.14. Plugging in the values, the area of the region is A = 3.14 × (7.5)^2 = 176.625 square miles.

Next, we multiply the area by the population density of 5000 people per square mile: 176.625 × 5000 = 883,125 people.

Therefore, there are approximately 883,125 people who live in the region.

Answer:

{4, 20}

Step-by-step explanation:

x2 − 24x = −80

divide -24 by 2  and square result   get 144

x^2 - 24x  + 144 =  -80 + 144

(x - 12)^2  =  64

x - 12 = root (64)

x = 12 + 8  or  x = 12 - 8

x = 20 or 4

The solution set of the considered quadratic equation x^2 − 24x = −80 is given by: Option B: {4,20}

The method "completing the squares", as per the name suggests, try to make the quadratic equation of the form such that the x variable is totally covered in single squared term, as the square of a linear expression in x.

The quadratic equation would look something like:

(px + q)^2 = s

where p, q and s are some constants.

We do so, so that we can then use square root and some other operations to get the variable 'x' on one side of the equation, and all the constants on the other side, being solution of the considered  quadratic equation.

Expressing the quadratic equation in such form converts the form of the equation which contains 'x' with different powers in different term to a form which contains 'x' single time.

Suppose that two terms are 'a' and 'b'.

Then, their sum's square is expanded as:

[tex](a+b)^2 = a^2 + 2ab + b^2[/tex]

For this case, the equation considered is :

[tex]x^2 -24x = -80[/tex]

Comparing the left side with [tex]a^2 + 2ab + b^2[/tex], we see that we can use a = x.

Let we try to make the considered equation look more like the equation  [tex]a^2 + 2ab + b^2[/tex] .

[tex]x^2 -24x = -80\\x^2 -2(12)x = -80\\x^2 -2(12)x + 12^2 -12^2 = -80\\x^2 -2(12)x + 12^2 = -80 + 12^2 = 64\\[/tex]

Now, we can use [tex](a+b)^2 = a^2 + 2ab + b^2[/tex] for the left sided expression, as shown below:

[tex]x^2 -2(12)x + 12^2= 64\\\\(x-12)^2 = 64[/tex]

Taking square root, we get:

[tex]\sqrt{(x-12)^2} = \sqrt{64}\\\\(x-12) = \sqrt{(\pm 8)^2} = \pm 8\\or\\\\x = 12 \pm 8\\x = 12+8, x = 12-8\\x = 20, x = 4[/tex]

Thus, the solution set of the considered quadratic equation x^2 − 24x = −80 is given by: Option B: {4,20}

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Answer:

7

XS

Step-by-step explanation:

100% on edge

The reflection of parallelogram PQRS across the line of reflection is 7 XS.

The parallelepiped is a parallelogram's three-dimensional equivalent.

Therefore, the correct answer to the question is 7 XS.

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Answer:

Step-by-step explanation:

f(x) = 2 / (x^2 - 1) is better written as

                 2

f(x) = ------------------

         (x - 1)(x + 1)

This is undefined at x = -1 and x = 1; there are vertical asymptotes at x = -1 and x = 1.

The y-intercept is found by letting x = 0; we get

                 2

f(x) = ------------------ = -2    =>    (0, -2)

         (0 - 1)(0 + 1)

Please, next time, share the answer choices.  Thank you.

By analyzing the asymptotes we can find the graph of the rational function. Also a graph is provided below.

We have the rational function:

f(x) = (2x)/(x^2 - 1).

First, you can see that we have two zeros on the denominator. One happens when x = 1 and the other when x = -1.

This means that the graph of this function will have two vertical asymptotes at these values. (four actually as we have one going to each end in each point).

With that description we can find the graph of the function, I will also post it so you can recognize it.

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Answer:

Your answer would be 36

Step-by-step explanation:

You can figure this out by multiplying B by C to get A or

4 x 9 = 36

Then you can check by going

36 ÷ 4 = 9

9 = 9

This is the right answer

Answer:

36

Step-by-step explanation:

You are solving for ?. Let ? become the variable (x).

x ÷ 4 = 9

Note the equal sign, what you do to one side, you do to the other. Isolate the variable, x. To do so, multiply 4 to both sides:

x ÷ 4 (* 4) = 9 (* 4)

x = 9 * 4

x = 36

36 is your answer.

~

Answer:

16x + 13

Step-by-step explanation:

(4x + 11) + (12x + 2)

combine like terms (add the x's and add the numbers)

4x + 12x = 16x

11 + 2 = 13

(4x + 11) + (12x + 2) =

16x + 13

Answer:

they are the same.

Step-by-step explanation:

Both have a 1/4 chance

Answer:

THE  are all the same  they all hae 1/4 chance

Step-by-step explanation:

I am pretty sure this will help =)

mark me brainliest =)

Have agreat day :)

Answer:

The answer is B

Step-by-step explanation: The reason for this is you know that 2 in = 9ft so you multiply 9 to get 36/ the height of the classroom. The times you multiply is by equal to it by you multiply by 2 because 2= 9ft not 1=9ft so you take 4 and multiply by 2 and you get 8.

Answer:

B) 8 inches

Step-by-step explanation:

Since the scale of the drawing is 2:9, we will then make this into two fractions that equal each other to make this easier. To do this we will make the ratio 2:9 into a fraction being 2/9. Then we will make the missing value which is the length of the calssroom on the scale drawing over the actual length of the classroom which is 36. We will then make the fractions equal each other. 2/9 = x/36. We can either cross multiply ( 2 x 36 and 9 * x) or we can make the denominators the same. I am going to make the denominators the same. The equation will then look like this: 8/36=x/36. Now we know the value of x is 8. This makes the answer B) 8 inches.

Answer:

The answer my friend  is 3.1818181818181817

Step-by-step explanation:

My explanation is when you divide 35 and 11 you get 3.18 if you round it to the tenths it would be 0.01. HOPES THIS HELP HAVE A WONDERFUL REST OF YOUR DAY  MARK ME BRAINLIEST PLZ.

Answer:

son is 7 daughter is 21

Step-by-step explanation:

Answer:

x = 60°

Step-by-step explanation:

The circle is 360°, thus

2y + y = 360

3y = 360 ( divide both sides by 3 )

y = 120°

The tangent- secant angle ABT is one half the measure of the intercepted arc AB, thus

x = 0.5 × 120° = 60°

Answer:

99

Step-by-step explanation:

It takes each student 33 seconds to eat an apple. This is done in parallel.

The time it would take if each person ate the exact same amount of apples is 69.6 repeating (calculated by (19 * 33) / 9). However, the apples cannot be cut into parts, so we need to round up to the next multiple of 33. Therefore 99 is the answer.

The CD that compounds more frequently will pay more interest; thus, monthly compounding yields more interest than quarterly, which in turn is more than semi-annually, with annual compounding paying the least.

When comparing the different compounding frequencies for a Certificate of Deposit (CD) with the same annual interest rate, the compounding option that pays more interest is the one that compounds more frequently. Compounding can occur on an annual, semi-annual, quarterly, or monthly basis. The more frequently the interest is compounded, the greater the amount of interest will be earned because each compounding period, the interest is calculated on the initially invested amount plus the previously earned interest.

For example, if interest is compounded monthly, it will be compounded 12 times a year, and each month's interest will begin to earn interest in subsequent months. Similarly, if interest is compounded quarterly, it will be compounded 4 times a year, and semi-annually compounding will occur twice a year. The least frequent is annually compounding, with only one compound per year.

Therefore, the CD that compounds monthly will pay the most interest, followed by the one that compounds quarterly, then semi-annually, and the least will be the CD that compounds annually, assuming the nominal interest rate is the same for all.

Answer:

1470

Step-by-step explanation:

I am pretty sure that this is the answer.

Tell me if i am wrong.

Can I get brainliest

Answer:

30

Step-by-step explanation:

1/4 of 120 is 30

therefore he can expect to win the game 30 times

Answer: 78 inches

Step-by-step explanation: looked it up on google

Answer:

78 inches

explanation:

Because one foot equals 12 inches

Answer:

12 percent

Step-by-step explanation:

2.5 ÷ 100 = 0.025

2.8 - 2.5 = 0.3

0.3 ÷ 0.025 = 12

The percent change is 12%.

When you want to analyse how a value has evolved over time, percentage increase is helpful. Although percentage increase and absolute increase are fairly comparable, the former is more helpful when contrasting different data sets.

Given:

A student has a container with a volume of 2.5 liters.

She estimates the volume to be 2.8 liters.

Change in Amount

= 2.8-2.5

= 0.3

So, percent increase

= 0.3 / 2.5 x 100

= 0.12 x 100

= 12%

Hence, the percent change is 12%.

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6:8 - 6 red apples to 8 green apples.  1:1.33 - 1 red apple for every 1.33 green apples.  43% of the apples are red and 57% of the apples are green.  

Final answer:

The ratio of green apples to red apples is 4:3, and the ratio of red apples to all apples in the basket is 3:7 after simplification.

Explanation:

To solve the student's question:

First, we find the ratio of green apples to red apples. There are 14 apples in total, 8 of which are green, so 14 - 8 = 6 red apples. The ratio of green to red apples is therefore 8:6, which can be simplified by dividing both sides by 2, resulting in a simplified ratio of 4:3.

Next, we calculate the ratio of red apples to all apples in the basket. Since there are 6 red apples and 14 apples in total, the ratio is 6:14, which simplifies to 3:7 when both sides are divided by 2.

Therefore, the answer for part (a) is a ratio of 4:3, and for part (b) is a ratio of 3:7.

Answer:2737t

Step-by-step explanation:

Answer:

2/3 0f 15 equals 10

Step-by-step explanation:

We see a set of 151515 triangles. The set is split into 333 equal sections, or thirds.Hint #22 / 3To find 2332​start fraction, 2, divided by, 3, end fraction of 151515, we can shade 222 thirds. How many triangles are shaded?Three rows of fifteen identical triangles. Lines divide the triangles into 3 groups with 5 triangles each. All 5 triangles in the first group and all 5 triangles in the second group are shaded.1010start color #7854ab, 10, end color #7854ab triangles are shaded.

Answer:

y = -28 ÷ x

Step-by-step explanation:

The standard format of a inversely proportional equation goes by the format of y = k ÷ x. The question asks us to write an equation if y = 7 when x = -4 and y varies inversely with x.

So we substitute the values y = 7 and x = -4 in the equation y = k ÷ x

K = constant, we have to work this out

7 = k ÷ -4

7 × - 4 = k

k = - 4 × 7

k = -28

k = -28 So then we put this back into the original y = k ÷ x to find our final equation which is y = -28 ÷ x

The number is always 2, the type depends on the discriminant.

For a general quadratic equation:

ax² + bx + c = 0

We can define the discriminant as:

D = b² - 4ac

And we can have 3 cases:

if D > 0, the quadratic equation has 2 real solutions.

if D = 0, the quadratic has two (equal) real solutions.

if D < 0, the quadratic has 2 complex solutions.

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Answer:

B. (−17, 4)

Step-by-step explanation:

We can write the equation of a circle in the form

(x-h)^2 + (y-k)^2 = r^2  where (h,k) is the center and r is the radius

(x + 17)^2 + (y − 4)^2 = 23

(x - -17)^2 + (y − 4)^2 = ( sqrt (23))^2

The center is (-17,4) and the radius is (sqrt(23)

Answer:

X=-3

Not sure if you meant finding the ‘x’ but it would be this

Step-by-step explanation:

Answer:

its -3 6 i got it worng

Step-by-step explanation: