3 years ago

The sum of two numbers is 80 and their difference is −10.

Mathematics

1 answer:

allsm [11]3 years ago

8 0

What’s the question and what do I answer?

You might be interested in

Find the inverse of the function.

asambeis [7]

Answer:

A) $f^{-1}(n)= (n+2)^3$

Step-by-step explanation:

$f(n) = \sqrt[3]{n} -2$

$y = \sqrt[3]{n} -2$

$y = n^{1/3}-2$

$n = y^{1/3} -2$

$n + 2 = y^{1/3}$

$y = (n + 2) ^3$

$f^{-1}(n) = (n + 2)^3$

Hope this helps!

7 0

3 years ago

Read 2 more answers

HELPPPPP NEEDED FIRST GETS BRAINLLEST !!!! Your dad is designing a new garden for your backyard. He has 26 feet of fencing to go

barxatty [35]

Answer:

Step-by-step explanation:

Let's call the width of the yard x and the length x + 3½. Since we know that perimeter = 2 * (width + length) and that the perimeter must be 26 we can write:

2 * (x + x + 3½) = 26

x + x + 3½ = 13

2x + 3½ = 13

2x = 9½

x = 4 $\frac{3}{4}$

8 0

3 years ago

HELP MEH PLS! Will mark brainliest :3<br> Simplify it- don't solve it. Show your work too pls!

Ksju [112]

Answer:

Step-by-step explanation:

$(1/5k)^2=1/5^2*k^2$

$1/25*k^2=\frac{k^2}{25}$

6 0

3 years ago

Read 2 more answers

What is the area of rhombus

anzhelika [568]

Answer:

16.5 is the area

Step-by-step explanation:

8 0

3 years ago

the scores on your first two history tests were 82 and 95. by how much points did you improve on your second test?

nikklg [1K]

Improved by 13 on your second test.

5 0

3 years ago