3 years ago

What is the value of the expression below when a = 3 and b = 7?

Mathematics

2 answers:

Alexandra [31]3 years ago

8 0

The answer is 42 I think

svp [43]3 years ago

6 0

Answer:

Step-by-step explanation:

9^2*7-2*7

56-14

I hope this helps.

You might be interested in

100 POINTS FOR BRAINLIEST! according to the image, whats the answer? Answer wisely for the full 100

stepan [7]

Answer:

Step-by-step explanation:

1. To find the area of a semicircle the formula is

$A=\frac{\pi r^2}{2} \\=\frac{\pi 1^2}{2} \\=6.283m^2$

The square

$A=a^2=2^2=4m^2\\6.283+4=10.283m^2$

2. Triangle

$A=\frac{ab}{2} \\=\frac{6*2.5}{2} \\=7.5m^2\\7.5*2=15m^2$

Rectangle

$A=wl=8*13=104m^2$

$104-15=89m^2$

Semicircle

$A=\frac{\pi r^2}{2} \\=\frac{\pi 3^2}{2} \\\\=14.137m^2$

Square

$A=a^2=6^2=36$

$36-14.137=21.863m^2$

3 0

3 years ago

Read 2 more answers

Please help with this

a_sh-v [17]

I thinks is A or B if not I’m sorry

5 0

3 years ago

Read 2 more answers

Match each equation with a value of x that satisfies it

Alexus [3.1K]

Answer:

(x-2)^1/4=2 ---> 18

√x^2+7=4. ---> -3

^3√1-x=-1. ---> 2

Step-by-step explanation:

just did it on plato

5 0

3 years ago

Write the following equation in standard form:22+52 +4 24 - 220

LekaFEV [45]

Answer:2.78×10^2

Step-by-step explanation:

22+52+424-220

=278

In standard form

=2.78×10^2

6 0

3 years ago

Please be kind enough to help me with this question in my geometry test thank you i’m very grateful

WARRIOR [948]

Answer:

yes

Step-by-step explanation:

5 0

3 years ago