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Juli2301 [7.4K]
3 years ago
11

Write each answer in scientific notation (2x10^-3)^3

Mathematics
1 answer:
Advocard [28]3 years ago
8 0
8*10^-9 I'm pretty sure
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A blueprint for a house has a scale of 1:5 feet. The living room has a length of 2.5 inches and a width of 3 inches. What is the
stiks02 [169]

Answer:

Step-by-step explanation:

Set this up as a proportion, with inches on the top and feet on the bottom for our scale.  We will find the actual length first, then we'll find the width.

\frac{in}{ft}:\frac{1}{5}=\frac{2.5}{x}

Cross multiply to get that the actual length is 5(2.5) = 12.5 feet.  Now for the width:

\frac{in}{ft}:\frac{1}{5}=\frac{3}{x}

Cross multiply to get that the actual width is 5(3) = 15 feet.

If you want the area of the room, multiply the length times the width to get

A = 15(12.5)

A = 187.5 feet squared

7 0
3 years ago
Write the equation for the circle with center (1, 1) and radius 5.
zepelin [54]
The answer is C
(x-h)^2 + (y -k)^2 =r^2
Center (h,k) r = radius
4 0
3 years ago
3(12-3y^2) Help solve this please
HACTEHA [7]
Step 1. <span>Distribute

</span>3*12+3*-3 y^{2}
<span>
Step 2. Simplify </span>3*12 to 36

36+3*-3 y^{2}

Step 3. Simplify 3*-3 y^{2} to -9 y^{2}

36-9 y^{2}

Done! :)
5 0
3 years ago
What is the surface area of the right rectangular prism with a square base, as
Jlenok [28]
342cm because the 4 sides equal 180cm and the top and base equal 162.
7 0
3 years ago
8. Phil received a commission of 5% on
faltersainse [42]

Answer:

$95,600

Step-by-step explanation:

the question can be rephrased as '4780 is five percent of what number'?

we can use the ratio of 'is/over' = %/100 to solve

'is' = 4780

'of' = selling price of house ('p')

4780/p = 5/100

now cross-multiply:

5p = 478000

p = 95600

4 0
2 years ago
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