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3 years ago

What is the average of the integers from 25 to 41?

1 answer:

7 0

The average of the terms of a contiguous subsequence of any arithmetic progression is the average of the first and last terms. To see this, notice that if you remove 25 and 41 from your sequence, then the average of the remaining terms is still given by the average of the extreme terms 26+402=33 .

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1. A pond has 85 frogs, 20% of the frogs are green the rest are orange, brown, and yellow. How many frogs are green?

alexandr402 [8]

Answer:

17 green frogs

Step-by-step explanation:

You need to multiply the decimal form of 20% by 85.

To find the decimal form of a percent you take the decimal (20.00) and move it twice to the left (20.00 ---> .2000)

Now, multiply by .2 by 85

(.2)(85) = 17

Therefore, 17 frogs in the pond of 85 frogs are green

Hope this helps!!

- Kay :)

4 0

3 years ago

Find the unknown side length x write your answer in simplest radical form

Sauron [17]

Answer:

(B) $4\sqrt{37}$

Step-by-step explanation:

First, we determine the height of the triangle which we label as y.

Using Pythagoras Theorem.

$25^2=7^2+y^2\\y^2=25^2-7^2\\y^2=576\\y=\sqrt{576}\\y=24$

In the smaller right triangle with hypotenuse, x

Base = 7-3 =4 Units

Height, y= 24 Units

Therefore, applying Pythagoras Theorem.:

$x^2=24^2+4^2\\x^2=592\\x=\sqrt{592}\\ x=4\sqrt{37}$

5 0

3 years ago

Please help with this question!

Nostrana [21]

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

a ) Two matrices cannot be multiplied.

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b )

The answer is | 20 - 4 - 12 |

| 8 2 19 - |

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7 0

3 years ago

3x squared - 2 x y when x=2 and y = 5

ira [324]

the Answer is 4 do order of operations

7 0

3 years ago

Using this table below, what is the rate of change? Don't forget to include your units.

NeX [460]

(24,18)(28,21)
slope(rate of change) = (21 - 18) / (28 - 24) = 3/4 <==

3 0

3 years ago