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3 years ago

14

0.2×0.2×0.2×0.2×0.2

2 answers:

patriot [66]3 years ago

5 0

An exponential expression will be the number to the power it is multiplied by example: 3×3 would be written 3^2 since it is multiplied twice
Now for yours .2×.2×.2×.2×.2 .2 is multiplied 5 times so .2^5 is the exponential form

valentina_108 [34]3 years ago

4 0

I think. 10 but not really sure

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The diameter of the moon is about 3500 km. Approximate the surface area of the moon using the formula for the surface area of a

horrorfan [7]

Answer:

$3.8465 *10^7$ square kilometers

Step-by-step explanation:

The surface area of a sphere can be found using the formula $SA=4\pi r^2$ . Since the diameter is 3500 km then its radius is half of this. 3500 divided in two is 1,750 units. Substitute r=1,750.

$SA=4\pi r^2\\SA = 4 \pi (1750)^2\\SA = 4 \pi *3,062,500\\SA =38,465,000$

The surface area of the moon is about 38,465,000 square kilometers. Write this is scientific notation using base. $3.8465 *10^7$

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3 years ago

You are getting ready for Thanksgiving dinner and trying to find the perfect outfit. You want to wear your new sweater from Infi

Cerrena [4.2K]

Answer:

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Step-by-step explanation:

6 0

2 years ago

Find the measure of the indicated angle to the nearest degree

scoundrel [369]

$\boxed{\sf tan\theta=\dfrac{p}{b}}$

$\\ \sf\longmapsto tan\theta=\dfrac{13}{20}$

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7 0

3 years ago

Help me with this please

matrenka [14]

1,425 divided by 19 = 75
2,384 divided by 23 = <span>103.652173913
hope i helped </span>

3 0

4 years ago

7.find the equation of a circle with one of the diameters x+2y+8=0and passing through the intersection of a circle x²+y²+2=0 and

ozzi

Answer:

See below

Step-by-step explanation:

<u>Find the intersection of circles</u>

x² + y² + 2x = 0 and
x² + y² - 3y = 0

<u>Subtract the equations to find:</u>

2x = -3y ⇒ y = -2/3x

<u>By substitution find the points:</u>

(0, 0) and (-1.385, 0.923)

<u>Find midpoint between these two points:</u>

x = (0- 1.385)/2 = -0.6925 , y = (0 + 0.923)/2 = 0.4615

<u>Find perpendicular bisector passing through this point:</u>

y - 0.4615 = 3/2(x + 0.6925)
y = 1.5x + 0.4615 + 1.5(0.6925)
y = 1.5x + 1.50025

<u>Find intersection of the lines, it is the center:</u>

y = 1.5x + 1.50025
x + 2y + 8 = 0

<u>Solving we get:</u>

x = -2,75, y = -2.625

<u>Find radius, the distance from center to point (0, 0) and get equation of circle:</u>

(x + 2.75)² + (y + 2.625)² = (0 + 2.75)² + (0 + 2.625)²
x² + 5.5x + y² + 5.25y = 0
4x² + 22x + y² + 21y = 0
4x² + 4y² + 22x + 21y = 0

4 0

3 years ago

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