2 years ago

Help me I’m not good at science

Mathematics

1 answer:

harkovskaia [24]2 years ago

4 0

Answer:

I believe this is correct, but I'm not a teacher or anything

Refraction

Reflection

Refraction

Reflection

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1. What is the area of a circle with a diameter of 3.4 cm? Round your answer to the nearest tenth. (use 3.14 for pi)

Brilliant_brown [7]

1. The area of a circle is
$a = \pi {r}^{2}$
$\pi = 3.14 \\ r = \frac{3.4}{2} = 1.7$
$a = (3.14) {(1.7)}^{2} \\ = 9.0746$
The area is 9.07 cm^2.

2. The volume of a cube is
$v = {s}^{3}$
$s = 4.5$
$v = {(4.5)}^{3} \\ = 91.125$
The volume is 91.125 m^3

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3 years ago

125.315 to standard form

Marianna [84]

Answer:

1.25315*102

Step-by-step explanation:

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3 years ago

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