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ad-work [718]
2 years ago
10

Solve using the quadratic formula. x² + 12x - 5=0

Mathematics
1 answer:
tatuchka [14]2 years ago
3 0
I believe this is the answer

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There are 36 carpenters in a crew. On a certain day, 29 were present. What percent were at work? (Round your answer to the neare
Allushta [10]

Answer:

80.56%

Step-by-step explanation:

divide 36 by 29 and you get 0.8055555555. Change that into a percent to get 80.56%

8 0
3 years ago
Evaluate the expression when y=-7.<br> y? +4y-1
Delicious77 [7]

Answer:

20

Step-by-step explanation:

y^2+4y-1=(-7)^2+4(-7)-1=(-7)(-7)-28-1=49-28-1=21-1=20

5 0
3 years ago
Jada says she can find 87-59 by taking away 60 and adding 1 so it is the same as 27+1 or 28. Explain why jadas method to calcula
astraxan [27]

Answer:

The correct answer is 28.

Step-by-step explanation:

Actually Jada makes problem simpler by adding and subtracting 1

that is

87 ₋ 59 ₋1 ₊ 1

so there would be no effect on our final answer because we have added 1 and also subtracted 1

Now,

87 - 59 -1 + 1

87 - 60 +1                ( ∵ -59 - 1 = -60 )

27 + 1                       (∵ 87 - 60 = 27 )

28

so the final answer is 28 .

3 0
3 years ago
Please I need help, I've been stuck in this for about 30 minutes now
Anna35 [415]

Answer:

look where infinity you have to write 5

Step-by-step explanation:

1, line of infinity 5

2. 7 8

3. 6 2

4. 0 1

5

6

7.7 8, 2 5, 6 3

4 0
2 years ago
Factor the GCF: 9x4y − 6x3y2 + 3x2y3.
Ganezh [65]
For this case we have the following expression:
 9x^4y - 6x^3y^2 + 3x^2y^3&#10;
 For this case what you should do is observe the terms that are repeated in the given expression.
 We have then:
 3x^2y&#10;
 It is the term that is present in the whole expression.
 Therefore, by doing common factor we have:
 3x^2y (3x^2 - 2xy + y^2)&#10;
 Answer:
 
the GCF is:
 3x^2y (3x^2 - 2xy + y^2)
 option A: a 3 is missing at the beginning of the option.
7 0
3 years ago
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