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3 years ago

Which expression is equivalent to 8-(6r+2) a -6r+6 b 2r+2 c 6r+10 d -6=10

Mathematics

1 answer:

dybincka [34]3 years ago

3 0

Answer:

a -6r+6

Step-by-step explanation:

$8-(6r+2)$

Use - to expand the bracket

$8-6r-2$

Group like terms and simplify

$-6r-2+8\\\\-6r+6$

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How to factor the. problem completely

den301095 [7]

The correct answer is d

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3 years ago

A company earns P dollars by selling x items, according to the equation P(x)=-0.002x^2+5.5x-1000. How many items does the compan

san4es73 [151]

So.. check the picture below

that's when the profit gets maximized

$\bf \qquad \textit{vertex of a parabola}\\ \quad \\

\begin{array}{lccclll}
P(x)=&-0.002x^2&+5.5x&-1000\\
&\uparrow &\uparrow &\uparrow \\
&a&b&c
\end{array}\qquad 
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3 years ago

The ratio of the measures of the angles in a triangle is 2:9:4 what is the measure of the largest angle ?

FrozenT [24]

You need to add all of these values together. This is 2 + 9 + 4 which gives 15

There are 180° in a triangle. Divide this by 15.

180/15 = 12

Then multiply this by the largest in the ratio; which is 9.

This is 12 x 9 which = 108°.

The largest angle is therefore 108°.

For reference, the ratio in degrees would look like this:

24:108:48, which adds up to 180°.

5 0

3 years ago

Read 2 more answers

A cylinder with a height of 8 cm has a volume of 2887 cm. What is the radius of the cylinder? (The volume of a

vesna_86 [32]

Answer:

The radius will be 10.72 cm

Step-by-step explanation:

Hope this helps

4 0

3 years ago

What is the area?<br> diameter of circle is 7 m

spayn [35]

Answer:

the area is 52.49

Step-by-step explanation:

triangle

radius is 3.5

3.5x19=66.5÷2=33.25

hemisphere

π3.5squared=38.48

38.48÷2=19.24

33.25+19.24= 52.49

8 0

3 years ago