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Damm [24]
2 years ago
5

Consider the cylinder below. Which statements are true?

Mathematics
1 answer:
kari74 [83]2 years ago
5 0

Answer:

A and C

Step-by-step explanation:

The volume of a cylinder is the area of a circle times the height.

\pir^{2}h

A = Plugging things in we'd have \pi 8^{2} 12. Which is pi x 64 x 12. Which is pi x 768. Which is 768 pi.

Basically use the same method for the other two questions

g'day

-birb

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The coordinates of which point are (–3, –6)?point Apoint Bpoint Cpoint D
Serga [27]

Answer: I think point C

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In PQRS, PR and QS intersect at T. What additional information is needed to conclude that PQRS is a rectangle
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If it's congruent and similar
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3 years ago
Find an equation for the line that passes through the points (5.-5) and (-4,-2)
ANEK [815]

Answer:

\large\boxed{y=-\dfrac{1}{3}x-\dfrac{10}{3}\to x+3y=-10}

Step-by-step explanation:

The slope-intercept form of an equation of a line:

y=mx+b

<em>m</em><em> - slope</em>

<em>b</em><em> - y-intercept</em>

The formula of a slope:

m=\dfrac{y_2-y_1}{x_2-x_1}

We have the points (5, -5) and (-4, -2).

Substiute:

m=\dfrac{-2-(-5)}{-4-5}=\dfrac{-2+5}{-9}=\dfrac{3}{-9}=-\dfrac{1}{3}

Put the value of the slope and the coordinates of the point (5, -5) to the equation of a line:

-5=-\dfrac{1}{3}(5)+b

-5=-\dfrac{5}{3}+b               <em>add 5/3 to both sides</em>

-\dfrac{15}{3}+\dfrac{5}{3}=b\\\\-\dfrac{10}{3}=b\to b=-\dfrac{10}{3}

Finally we have the equation of a line in the slope-intercept form:

y=-\dfrac{1}{3}x-\dfrac{10}{3}

Convert to the standard form <em>(Ax + By = C)</em>:

y=-\dfrac{1}{3}x-\dfrac{10}{3}          <em>multiply both sides by 3</em>

3y=-x-10              <em>add x to both sides</em>

x+3y=-10

4 0
3 years ago
A chemist is using 381 milliliters of a solution of acid and water. If 17.4% of the solution is acid, how many milliliters of ac
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Answer:

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Step-by-step explanation:

  17.4% of 381 mL is ...

  0.174 × 381 mL = 66.3 mL

7 0
3 years ago
Which of the following shows the number 7.12 x 10^-3 written in standard form? Answer choices : 0.00712 : 0.0712 : 0.712 : 7,120
svet-max [94.6K]
<span>written in standard form
</span><span>
7.12 x 10^-3  = 0.00712

hope it helps</span>
7 0
3 years ago
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