Help with practice problem

Mathematics

1 answer:

padilas [110]2 years ago

5 0

Answer:

attached above with detail explanation.

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What’s (3b-5c)(2x+5y) squared

lukranit [14]

Answer: In your problem, you said that they are squared. However, it is not written as squared. We just have to multiply them.

We can use the FOIL method.

(3b - 5c)(3x + 5y)

6bx + 15by - 10cx - 25cy

There are no like terms, so that expression is our final answer.

8 0

3 years ago

Write the area A of a square as a function of its perimeter P. ...?

Svetradugi [14.3K]

The answer is A = P²/16

The perimeter P of a square is sum of its sides s: P = s + s + s + s = 4s
The area A of a square with side s is: A = s * s = s²

Step 1: Solve s from the formula for the perimeter.
Step 2: substitute s from the formula for the perimeter into the formula for the area.

Step 1:
P = 4s
s = P/4

Step 2:
A = s²
s = P/4
A = (P/4)²
A = P²/4²
A = P²/16

4 0

3 years ago

Compare the values of 2s and 5s in 55,220

Readme [11.4K]

Hello !
20= Twenty
200= two hundread
5,000= five thousand
50,000= fifty thousand
we always replace the numbers that comes after the value with 0's
Good luck

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3 years ago

Is 24/40 equal to four over five a true proportion

jeyben [28]

Answer:yes it is

hsyhsyxhsyxhsyhxysxys

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3 years ago

Read 2 more answers

Probability of rolling factors of 20

Marizza181 [45]

If you are rolling a single six sided die numbered 1-6, you find that only 1,2,4, and 5 are factors of 20. Now the theoretical probability of an event is the ratio comparing the number of desired outcomes to the total outcomes possible.

In this case: we have 4 desired outcomes out of a total 6 outcomes possible with a single roll the die.. therefore, the probability you seek is $\frac{4}{6} = \frac{2}{3}$ or approximately 67%.

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3 years ago