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Rudik [331]
3 years ago
5

My last problem and I'm stuck please help!!​

Mathematics
1 answer:
WITCHER [35]3 years ago
4 0
Answer is C= -125,125
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Solve the equation
Vikki [24]

Answer:

x ≈ - 5.32, x ≈ 1.32

Step-by-step explanation:

Given

x² + 4x - 7 = 0 ( add 7 to both sides )

x² + 4x = 7

To complete the square

add ( half the coefficient of the x- term )² to both sides

x² + 2(2)x + 4 = 7 + 4

(x + 2)² = 11 ( take the square root of both sides )

x + 2 = ± \sqrt{11} ( subtract 2 from both sides )

x = - 2 ± \sqrt{11}

Thus

x = - 2 - \sqrt{11} ≈ - 5.32 ( to 2 dec. places )

x = - 2 + \sqrt{11} ≈ 1.32 ( to 2 dec. places )

4 0
3 years ago
How do u find the area?
nydimaria [60]
Act like it's a rectangle. The height is 10 because 7+3=10 and the length it 27. Multiply them for the are and you get 270 in. Then multiply 6x7=42 because that's the are of the space that is missing from the imaginary rectangle. Multiply by 2 (84 in.) because there are 2 missing spaces and subtract from 270= 186 inches is your answer.
7 0
3 years ago
Read 2 more answers
Ralph has a piece of shelving 3 m long. He is going to cut it into 4 equal lengths pieces. how long will each piece be?
marishachu [46]

0.75 or 3/4 m each.

Extra letters: cdvaysoHAHboaihscvia


7 0
3 years ago
If you have a 12 side die and a 6 side die what is the probrability it lands on 5
umka2103 [35]

Answer:

For the 12 sided one it would be 1/12

For the 6 sided one it would be 1/6

Combine those together and it would be <u>3/12</u> which is equal to <u>1/4</u>

Step-by-step explanation:

5 0
2 years ago
Which expression is equivalent to
Finger [1]
The answer would be A. because two negatives equal a positive
7 0
2 years ago
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