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makvit [3.9K]
3 years ago
6

PLEASE HELP!!! 14 POINTS!

Mathematics
1 answer:
Pepsi [2]3 years ago
8 0
Area=1/2bh


add them
(1/2)ab+(1/2)c^2+(1/2)ab=
ab+(1/2)c^2
ab+(1/2)(a^2+b^2)
not sure which option to pick there are different preferences on what counts as 'simplified'




4. find area
area=LW
area=105*45=4725
depends on the area of the signs
answer is
4725/(areaof1sign)
anyway, round down your answer because you will have an incomplete sign if you don't




5. area=pir^2
1/2 of it is
area=1/2pir^2
area=(1/4)^2pir^2
area=pi((1/4)r)^2
the radius is now 1/4 of what it was originally, meaning that the diameter is also 1/4 of what it is now
we need to know diamater
answer is 1/4 of current diameter




3. unclear

4. area of 1 sign not given, answer is 4725/(areaof1sign), rounded DOWN to nearest integer

5. (404 error, diameter not found) answer is 1/4 of current diameter
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(9x + 17) +2 \times  ( 5x + 15 ) + (6x - 12) = 360 \\

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Collect like terms

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7 0
2 years ago
If sin square theta = 0.75, then cos =
sergeinik [125]

Answer:

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\sin^2\theta=0.75

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We know:

\sin^2\theta+\cos^2\theta =1

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0.75+\cos^2\theta =1

Subtracting both sides by 0.75.

0.75+\cos^2\theta-0.75 =1-0.75

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andreev551 [17]
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3 years ago
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LuckyWell [14K]

9514 1404 393

Answer:

  d.  14 -3x

Step-by-step explanation:

If you want to substitute for y in the second equation, you must use the first equation to find an expression for y.

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This gives you the expression for y that you want to use for substitution. It matches the expression of choice D.

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