Find the area and perimeter of a rectangle if the length is 25 and the width is 8.

Mathematics

1 answer:

g100num [7]2 years ago

3 0

Answer:

area is 200 perimeter is 66

Step-by-step explanation:

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Collin did the work to see if 10 is a solution to the equation r/4=2.5

Natasha2012 [34]

Answer:

Yes, because if you substitute 10 for r in the equation and simplify, you find that the equation is true.

Step-by-step explanation:

$\frac{r}{4} = 2.5 \\ lhs = \frac{r}{4} \\ = \frac{10}{4} \\ = 2.5 \\ = rhs \\ \therefore \: \frac{r}{4} = 2.5 \\$

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3 years ago

Find the inverse, please help.

igomit [66]

Replace f(x) with y

Y = 2x -5

Swap roles of x

X= 2y-5

5+x =2y

Divide by 2

5+x /2 = y

Replace y with inverse f^-1(x)

Answer= f^-1(x) = 5+x / 2

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2 years ago

5 Helga signs up to coach hockey. She

lianna [129]

Answer: 12 practice sessions

Step-by-step explanation:

You can represent the word problem in this equation: 200+50x<775 OR 200+50x=775

If you subtract 200 from 775, you’ll be left with: 50x=575

Count by fifties until you get to 575. You’ll notice that 50 doesn’t go into 575 evenly! However, this won’t matter, because Helga wants to make AT LEAST 775. So you can round up to 12 practices instead of 11, which will equal 800 dollars instead of 750.

4 0

3 years ago

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The side lengths of a square are each 4p. By adding 3 to the length and subtracting 3 from the width, a rectangle is made. What

AysviL [449]

Answer:

area will be

$16p {}^{2} - 9$