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3 years ago

Please help!!

Mathematics

1 answer:

valkas [14]3 years ago

5 0

A calculator can show you the answer to these very quickly.

$\dfrac{7.488\cdot 10^{-8}}{3.12\cdot 10^{2}}=\dfrac{7.488}{3.12}\times 10^{(-8-2)}\\\\=2.4\cdot 10^{-10}$

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Solve the word problem. Round your final result to the nearest hundredth.

fenix001 [56]

Answer:

1)Area of circle: 64 $\pi$

2)Area of semicircles: 128 $\pi$

3)Area of quarter-circles: 128 $\pi$

4)Total area of pattern: 320 $\pi$

Step-by-step explanation:

r = 8cm

Given: 1 circle, 4 semicircles, and 8 quarter-circles.

Area of a circle: $\pi r^{2}$

1) A = $\pi r^{2}$ where r = 8

A = 64 $\pi$

2) 4 semicircles = 2 circles

so the answer is 2*A = 128 $\pi$

3) 8 quarter-circles = 2 circles

Therefore, the answer here is the same as the answer for #2!

4)There are 5 circles total because:

1 circle = 1 circle

4 semicircles divided by 2 = 2 circles (because $\frac{1}{2}$ times 4)

8 quarter-circles divided by 4 (think about what "quarter" means) = 2 circles

So ... 1 + 2 + 2 = 5 circles

Now we need to find the area of 5 circles which is just 5*A

5*A = 320 $\pi$

4 0

3 years ago

Help pleaseee?<br> thank you

Artist 52 [7]

Cos θ = 35/37
θ = $cos^{-1}$ (35/37)
θ = 18.9 degrees or B

6 0

3 years ago

Can someone help me find AC

Kryger [21]

Answer:

1.4

Step-by-step explanation:

simply use your theta the top angle of 35 degrees hit sin on your calculator set up the proportion

x .700

2 1

cross multiply to end up with 1.4

4 0

3 years ago

Help i need to know this quickly please

ivann1987 [24]

Answer:

Abc is the whole explanation.

5 0

2 years ago

Ami purchases 27 T-shirts for a certain amount of money. Using m for the total amount of money in dollars that Ami spent on T-sh

grigory [225]

M = 27x
where x is the price of a t-shirt

3 0

3 years ago