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Yuri [45]
3 years ago
13

103. Please help me!10 points! Thanks.

Mathematics
1 answer:
Inessa05 [86]3 years ago
8 0
The formula for the surface area of a sphere is 4πr^2

This can be used in the following way, getting the diameter at 18.3:
18.3/2 = 9.15
Saying PI is 3.14 you can do this:

SA = 4*3.14*9.15^2 = 1051.6 m^2

Formula for volume is:
(4/3)πr^3

V = (4/3)*3.14*9.15^3 = 3207.2 m^3
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Find the slope of the line.<br> Help?
nirvana33 [79]

Answer:

-1/2x

Step-by-step explanation:

We know point (-10, 0) and point (0,-5)

So, the slope would be -5/10 or simplified at -1/2

y= -1/2x

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3 years ago
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Can someone please tell me what the angle of x is?
pentagon [3]

Answer:

x = 71

Step-by-step explanation:

<B is a right angle, so triangle ABE is a right triangle, and angles BAE and AEB are complementary.

m<BAE + m<BEA = 90

42 + m<BEA = 90

m<BEA = 48

<BEC is a straight angle, so its measure is 180 deg.

m<CED + m<DEA + BEA = 180

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RSB [31]

Answer:

y=4/5x

Step-by-step explanation:

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Write an equation of a line in a slope-intercept form that passes through (-2,1) with a slope of 5.
KonstantinChe [14]
If they give you a point and slope, use point slope form.
Then simplify to get slope intercept form (y = mx + b)
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(-2, 1)

y - y1 = m(x - x1)
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y = 5x + 11
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