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vlabodo [156]
4 years ago
13

Factor completely 16x^2-81

Mathematics
1 answer:
Natasha_Volkova [10]4 years ago
7 0

Answer:

(4x-9) times (4x+9)

Step-by-step explanation:

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bonufazy [111]

Answer:

B

Step-by-step explanation:

the reason this because vertically opposite angles the equal so it's also 72

7 0
3 years ago
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Oliver climbed 222 meters of a steep mountain reach the summit. He then rappelled down the other side of the mountain to return
nikdorinn [45]
B -222

Because he fell/descended 222 meters. And falling or going down produces a negative integer. Also, if you were actually doing the math to try to find where Oliver is currently located, you wouldn't add 222, or 0, or subtract -444. You would subtract 222. 

In addition, be aware that the question is asking you an integer to represent a situation, not the answer of where Oliver is. 

6 0
3 years ago
You brought 9 feet of elastic to make hair ties each hair ties need 3 3/8 inches of elastic how many hair ties can you make
PIT_PIT [208]

Answer:

32\ hair\ ties

Step-by-step explanation:

we know that

To make one hair ties is needed 3 3/8 inches of elastic

so

using proportion

Find out how many hair ties can you make with 9 feet of elastic

Remember that

1\ ft=12\ in

Convert 9 ft to inches

9\ ft=9*12=108\ in

Convert mixed number to an improper fraction

3\frac{3}{8}\ in=\frac{3*8+3}{8}=\frac{27}{8}\ in

using proportion

\frac{1}{(27/8)}=\frac{x}{108}\\\\x=108*8/27\\\\x=32\ hair\ ties

3 0
3 years ago
Answer please ? i don’t understand
slavikrds [6]

Answer:

It is letter C

Step-by-step explanation:

6 0
3 years ago
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two vertical poles stand side by side. one post is 8ft tall while the other is 17ft tall. if a 24ft wire is stretched between th
Anna35 [415]

Answer:

It's a right triangle.

Step-by-step explanation:

The hypotenuse is 24 feet

The vertical side is 17 - 8 = 9 feet.

The distance is the 3rd side.

6 0
3 years ago
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