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julsineya [31]
3 years ago
5

Which values are solutions of the quadratic equation 0 = (x + 3)2 – 4? Check all that apply.

Mathematics
1 answer:
larisa86 [58]3 years ago
5 0

Answer:

The answer is -1.

Step-by-step explanation:

(-1 + 3)2-4

(2)2-4

4-4

0

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(-4)= ? a. -4 B. 4 C.0 d. none above
Anit [1.1K]
If it’s just (-4) with nothing in front the answer is -4
3 0
2 years ago
the length of one leg of a right triangle is 6 feet. the length of the hypotenuse is 2 ft longer than the other leg. Find the le
Minchanka [31]

Answer:

The missing leg is 8 feet and the hypotenuse is 10 feet.

Step-by-step explanation:

Use the Pythagorean theorem which is A²+B²=C².

So we know the first side is 6 so plug that into the equation which would now be 6²+B²=C².

Because the hypotenuse is 2 feet longer than the missing leg we can plug in C=B+2 which would now make it 6²+B²=(B+2)².

Now we solve what we have so far which would now make the equation 36+B²=B²+4B+ 4.

Now we can figure out that 4B=32.

Now isolate the variable, B, by divide both side of 4B=32 by 4.

This gives us B=8.

So the other side is 8 feet.

Since we know that the hypotenuse is 2 feet longer than the leg we just add 2 feet to the original 8 feet to find the hypotenuse to be 10 feet.

5 0
2 years ago
Sin 7A = cos 3A, then m∠A is what?
lbvjy [14]

Answer:

m∠A = 9°

Step-by-step explanation:

\sin 7A =  \cos 3A \\  \\ \sin 7A =  \sin(90 \degree -  3A) \\  \\ 7A =  90 \degree -  3A\\  \\ 7A  + 3A=  90 \degree  \\  \\ 10A=  90 \degree  \\  \\ A =  \frac{90 \degree}{10}  \\  \\  m \angle A =9 \degree

8 0
3 years ago
A local business was looking to hire a landscaper to work on thro property. They narrowed their choices down to two companies. F
wlad13 [49]
$120h= $70h + $1600

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h = 32
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3 years ago
How do I solve this problem
Anton [14]
What does the rest of the problem say?

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