I need help with 7th grade math please need help ASAP + brainleist

Mathematics

1 answer:

Alona [7]2 years ago

8 0

Rectangle

A = b x h

=100 x 62

= 6200m^2

2 semi-circles make one full circle

Diameter is 62

Raduis is 31

A = 3.14 x 31 x 31

= 3017.54m^2

Total area:

6200m^2 + 3017.54m^2 = 9217.54

Ans: 9217.54m^2

Hope this helps!

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Step-by-step explanation:

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PEMDAS
P - Parentheses (or other grouping symbols)
E - Exponents
M - Multiplication
D - Division
A - Addition
S - Subtraction

$8x[(7+4)x^2] - [(11-7)x^4]\\ \\ 8x[(11)x^2] - [(4)x^4] \\ \\ 8x[11x^2] - [4x^4] \\ \\ 88x^3 - 4x^4 \\ \\ -4x^4+88x^3$

If you then want to go on to factor it, your answer would be $-4x^3(x-22)$