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Natalija [7]
3 years ago
13

What is the volume of a sphere with a radius of 8 inches?

Mathematics
1 answer:
liraira [26]3 years ago
5 0

Answer: The volume is 2143.57

Step-by-step explanation:

v= 4/3 * 3.14 * 8^3

v = 2143.57

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Three houses are mapped on a coordinate grid.
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Step-by-step explanation:

Let us consider the task to find the angle between vectors ES and EJ (the first letters are taken to name the vectors).

\overrightarrow{ES} = (4;4) - (4; -3) = \overrightarrow{(0; 7)}

ES

=(4;4)−(4;−3)=

(0;7)

​

\overrightarrow{EJ} = (-5; -4) - (4; -3) = \overrightarrow{(-9; -1)}

EJ

=(−5;−4)−(4;−3)=

(−9;−1)

​

cos \alpha=\frac{\overrightarrow{ES}*\overrightarrow{EJ}}{|\overrightarrow{EJ}|*|\overrightarrow{ES}|}cosα=

∣

EJ

∣∗∣

ES

∣

ES

∗

EJ

​

cos(a) = (0*(-9)+7*(-1)) / (7*9.055) = -0.11043;

a = 96,34°

Solution: 96 degrees.

6 0
3 years ago
A system of equations and its solution are given below.
Fittoniya [83]
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Sum of the second equation of system A and the first equation multiplied by -3:
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System B
x+6y=5
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4 0
3 years ago
Read 2 more answers
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