3 years ago

I need help with this 2 please

Mathematics

1 answer:

xeze [42]3 years ago

7 0

Answer:

Step-by-step explanation:

The formula for C is

C=2πr (using 3.14 as pi)

so C=2(3.14)(45)

so C=90(3.14)

so C≈282.6 or D

You might be interested in

Can somebody help me please?

madreJ [45]

Factor
(x+7)(x-2)

Proof
7-2=5
7*-2=-14

Zeros
x+7=0
x=-7

x-2=0
x=2

Final answer: C

3 0

3 years ago

Read 2 more answers

Using the GCF you found in Part B, rewrite 72 + 81 as two factors. One factor is the GCF and the other is the sum of two numbers

konstantin123 [22]

$72|2\\36|2\\18|2\\.\ 9|3\\.\ 3|3\\.\ 1|\\\\72=2\cdot2\cdot2\cdot\boxed{3}\cdot\boxed{3}\\\\81|3\\27|3\\.\ 9|3\\.\ 3|3\\.\ 1|\\\\81=\boxed{3}\cdot\boxed{3}\cdot3\cdot3\\\\GCF(72,\ 81)=\boxed{3}\cdot\boxed{3}=9\\\\72=9\cdot8\\81=9\cdot9\\\\\boxed{72+81=9(8+9)}$