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koban [17]
3 years ago
11

Evaluate (2a-4)2+10 for a=3 PLEASE

Mathematics
1 answer:
givi [52]3 years ago
6 0

Answer:

14

Step-by-step explanation:

sorry if it not correct ._.

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Determinewhether the two lines areparallel, perpendicular, neither.X-3=6Y = 3x +4
Brums [2.3K]

we have the lines

x-3=6

x=6+3

x=9

this is a vertical line (parallel to the y-axis)

The slope is undefined

and

y=3x+4

The slope is m=3

Compare their slopes

1) Their slopes are not equal -----> are not parallel lines

2) Their slopes are not negative reciprocal -----> are not perpendicular lines

therefore

<h2>The answer is neither</h2>
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1 year ago
Help pls! will give brainliest!<br><br> find the percent markdown of 175.80-141.27
polet [3.4K]

Answer:

141.2/175.8=.803185

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3 years ago
What is 0.02% of 40 million pounds?
DanielleElmas [232]
0.02% of 40 million pounds is 8000 (pounds)

5 0
3 years ago
5u exponent 7 - 21u exponent 7<br><br> Simply
bagirrra123 [75]
Assuming the given is: 5u^7 - 21u^7
Since both algebraic terms are identical (both are using u^7), we can subtract the coefficients directly, as in: 5 - 21 = -16
Therefore, 5u^7 - 21u^7 = -16u^7
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3 years ago
A rectangular prism is 3 units high 2 units wide and 5 units long what is its surface area in square units
Luba_88 [7]

Answer:

62 square units

Step-by-step explanation:

The area of a rectangular prism is the sum of the areas of its six faces. Opposite faces have the same area, so it is the sum of 3 pairs of faces. The area of one face of each pair is the product of the dimensions of that face. Those three areas are ...

• L·W

• W·H

• H·L

so the total surface area is ...

A = 2(LW +WH +HL)

For hand calculation, this can be simplified a bit to ...

A = 2(LW +H(L+W)) . . . . . requires one less multiplication

For your prism, the area is ...

A = 2(5·2 + 3(5+2)) = 2(10 +21) = 62 . . . square units

6 0
3 years ago
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