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crimeas [40]
3 years ago
9

3c^2+56=-135 what is the solution​

Mathematics
1 answer:
WINSTONCH [101]3 years ago
8 0

3 {c}^{2}  + 56 =  - 136 \\ \Leftrightarrow 3 {c}^{2}  =  - 192 \\ \Leftrightarrow  {c}^{2}  =  - 64 \\ \Leftrightarrow c = \pm8i

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in order to earn an A in class, your test scores must average at least 92%. On the first 6 tests, you have an average of 91%. Wh
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3 years ago
I have a different number of kids & can't seem ton find the correct numbers
bija089 [108]
<h3>Answer: </h3><h3>Fred has <u>20 students</u> and Lee has <u>22 students</u></h3>

=============================================================

Work Shown:

L = number of students in Lee's class

F = number of students in Fred's class

Lee has 1.1 times as many students compared to Fred

This means we have this equation

L = 1.1F

Whatever the value of F is, we multiply that by 1.1 to get the value of L

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L+F = 42

1.1F + F = 42 .... replace L with 1.1F

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F = 42/(2.1)

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L = 1.1*F

L = 1.1*20

L = 22 .... Lee has 22 students

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Check:

L+F = 22+20 = 42

this confirms the answer

5 0
4 years ago
Paul opened a bakery. The net value of the bakery (in
Umnica [9.8K]

Answer:

1) 2(t - 7)(t + 1)

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Step-by-step explanation:

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7 0
3 years ago
Read 2 more answers
(02.05 LC)
NemiM [27]

Answer: 1 over 2

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4 0
3 years ago
Read 2 more answers
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