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3 years ago

6

An 18-foot board is leaning against a wall. It is set 6 feet from the base of the wall. How far up the wall does the board reach

? Round your answer to the nearest tenth of a foot.

1 answer:

pav-90 [236]3 years ago

8 0

Answer: 19

Step-by-step explanation:

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45/6 simplify into a mixed number

almond37 [142]

Answer:

7 3/6

Step-by-step explanation:

45/6=7 ---- finding what it is divisable by

7*6=42

45-42=3 ----- finding the remainder

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Choose the correct answer. If one balloon is larger than another, it has a greater _________________.

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C. Volume.
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the correct answer is 60

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Which expression can be used to find the volume of the sphere?

Kryger [21]

Answer:

They used 3.14 for pi:

$V=\frac{4}{3} \pi r^3$

$V=\frac{4}{3} (3.14)(5)^3$

Step-by-step explanation:

$V=\frac{4}{3}\pi r^3$ is the volume of a sphere with radius r.

I think that is the diameter given in the picture.

The radius is half the diameter.

So the radius is 5 since the diameter is 10.

Plug in this gives you:

$V=\frac{4}{3} \pi (5)^3$

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Consider this quadratic equation. 2x2 − 1 = 3x + 4 Which equation correctly applies the quadratic formula?

Mariulka [41]

Answer:

$\frac{-(-3)+-\sqrt{(-3)^2-4(2)(-5)}}{2(2)}$

Step-by-step explanation:

Quadratic formula: $\frac{-b+-\sqrt{b^2-4ac} }{2a}$

$2x^2-1=3x+4\\\\2x^2-3x-5=0\\\\\\frac{-(-3)+-\sqrt{(-3)^2-4(2)(-5)}}{2(2)} \\\frac{3+-\sqrt{9+40} }{4}$

$x = \frac{3+-7}{4}$

Hope this helps and God bless!

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2 years ago