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RUDIKE [14]
3 years ago
7

What is the radius of sphere with a surface area of 100cm2

Mathematics
1 answer:
Novosadov [1.4K]3 years ago
5 0

Answer:

10cm2

Step-by-step explanation:

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If cos θ = 5/13, use the Pythagorean Identity to find sin θ.
emmainna [20.7K]
Sin θ=sqrt(1-<span>cos^2 θ)
</span>sin θ=sqrt[1-(5/13)^2]
sin θ=sqrt[1-(5)^2/(13)^2]
sin θ=sqrt[1-25/169]
sin θ=sqrt[(169-25)/169]
sin θ=sqrt(144/169)
sin θ=sqrt(144)/sqrt(169)
sin θ=12/13

Answer: Second option 12/13
6 0
3 years ago
What is the equation in slope-intercept form of the line that passes through the point (5, 0) and is parallel to the line repres
alisha [4.7K]

Answer:

y=1.2x-5

Step-by-step explanation:

Parallel lines are equal lines that never intersect or touch each other.

When a problem gives you information about the line being parallel to another, you'll know the slope of the line is going to be the same.

3 0
3 years ago
Find the area of the polygon to the nearest square inch.
SVETLANKA909090 [29]

Answer:

137 in.^2

Step-by-step explanation:

A = nsa/2

where

n = number of sides = 9

s = length of side = 4.7 in.

a = length of apothem = 6.5 in.

A = (9)(4.7 in.)(6.5 in.)/2

A = 137.475 in.^2

Answer: 137 in.^2

5 0
3 years ago
Please help<br> Geometry <br> Will give top answer for someone to answer correctly.
Setler79 [48]

Answer:

Length of the minor arc AB = 5.27777777778 cm

Step-by-step explanation:

Here you would require a simple proportionality.

The ratio of the degree of the minor arc (95 degrees) over the total, 360 degrees of every circle, comparative to the length of the minor over the circumference (20 cm).

Here we can propose that the length of the minor can be equal to x.

Now let's substitute the known values:

95 / 360 = x / 20

Now cross multiply:

360 * x = 95 * 20 ⇒

360x = 1900 ⇒

x = 5.27777777778 ⇒

length of the minor arc AB = 5.27777777778 cm

3 0
3 years ago
What is the circumference of a circle that has a radius of 4
Artemon [7]
C=2pir
r=4
c=2pi4
c=8pi
aprox pi=3.14
c=25.12
4 0
3 years ago
Read 2 more answers
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