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2 years ago

Find the length of CB. 5x – 3 3x + 1

Mathematics

1 answer:

SSSSS [86.1K]2 years ago

4 0

Assumed that sides are equal

5x-3=3x+1
5x-3x=1+3
2x=4
x=2

5(2)-3
7

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A rectangular pyramid has a base area of 24in² and a volume of 48in³. What is the height of the pyramid?

alexgriva [62]

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V=48in^3

A=24in^2

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3 years ago

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Which of the following points are more than 5 units from the point P(−2, −2)? Select all that apply. A A (2, 1) B B (4, −1) C C

netineya [11]

The distance between any 2 points P(a,b) and Q(c,d) in the coordinate plane, is given by the formula:

 $|PQ|= \sqrt{ (a-c)^{2} + (b-d)^{2}}$

Using this formula we calculate the distances |PA|, |PB|, |PC|, |PD| and |PE| and compare to 5.

$|PA|= \sqrt{ (-2-2)^{2} + (-2-1)^{2}}= \sqrt{16+9}= \sqrt{25}=5$

$|PB|= \sqrt{ (-2-4)^{2} + (-2+1)^{2}}= \sqrt{36+1}= \sqrt{37} \approx 6$

$|PC|= \sqrt{ (-2-2)^{2} + (-2+3)^{2}}= \sqrt{16+1}= \sqrt{17}\approx4$

$|PD|= \sqrt{ (-2+6)^{2} + (-2+6)^{2}}= \sqrt{16+16}= \sqrt{32}\ \textgreater \ \sqrt{25}=5$

$|PE|= \sqrt{ (-2+5)^{2} + (-2-1)^{2}}= \sqrt{9+9}= \sqrt{16}=4$

Answer: B and D

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3 years ago

Find the volume of a cone with a radius of 12 units and a height of 6 units.

svlad2 [7]

The volume is 905.32 i believe

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3 years ago

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Lilit [14]

The answer would C. You must remember for the mean you need to add up all of the numbers, then divide the answer by the number of numbers you have.
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5,3,7,2,1
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Hope this helps!

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3 years ago

7b Evaluate when b= -1 b-3

tiny-mole [99]

Answer:

b-3

-1-3

-4

is the correct answer

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3 years ago