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xxMikexx [17]
3 years ago
12

Please help i need to answer this within 2 hours

Mathematics
2 answers:
Gelneren [198K]3 years ago
7 0
The answer is A. -137.8
Phantasy [73]3 years ago
5 0
-112.84 - 54.14 - (-29.18)

-166.98 - (-29.18)

-137.8 <-------- answer
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Neil wants to join three pieces of metal to form a right triangle. which of the following lengths could be used? please use step
vichka [17]

Answer: G. 12.5, 7.5, 10

Step-by-step explanation:

To determine the lengths of metal that could be used to form the tight angle triangle, we would apply Pythagoras theorem which is expressed as

Hypotenuse² = opposite side² + adjacent side²

The hypotenuse is the longest side while the opposite and adjacent sides are the shorter side. Therefore,

F.

8² = 4² + 4²

64 = 16 + 16 = 32

A right angle triangle cannot be formed because they are not equal.

G.

12.5² = 7.5² + 10²

156.25 = 56.25 + 100 = 156.25

A right angle triangle can be formed because they are equal.

H.

23² = 11² + 9²

529 = 121 + 81 = 202

A right angle triangle cannot be formed because they are not equal.

J.

96² = 12.5² + 6²

9216 = 156.25 + 36 = 192.25

A right angle triangle cannot be formed because they are not equal.

4 0
3 years ago
What number must you add to the expression below to complete the square? x^2-20x?
polet [3.4K]
We have that
x²<span>-20x
</span><span>Group terms that contain the same variable
</span>(x²-20x)
Complete the square 
(x²-20x+10²)------> (x-10)²

the answer is
the number must be 100
5 0
3 years ago
Why can a problem with extra information be difficult to solve?
solong [7]

A problem with extra information will be difficult to solve because you may not be able to tell what information you might need to use for the problem.

5 0
3 years ago
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Factor the expression 4x + 32. Explain each step you take in the process.
irinina [24]

Step-by-step explanation:

1. What the GCF

the GCF is 4

4(x + 8)

2. divide by 4

4(x+8) is the solution

4 0
3 years ago
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What is the Slope?<br> 4x + y = 1
Irina-Kira [14]

Answer:

m=-4

Step-by-step explanation:

8 0
2 years ago
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