2 years ago

Please help ! Easy 7th grade math ! It’s talking about integers!

Mathematics

2 answers:

Tatiana [17]2 years ago

6 0

Answer:

10. 12

Step-by-step explanation:

Number 10 is 12 but I don't understand number 11.

I hope this helps.

artcher [175]2 years ago

4 0

Question 11- the answer is -7

since it’s saying “under par” it means that it’s in the negative area. so now that we know what the number is (7) and what area it is (negative) it’ll be -7 :)

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Dmitrij [34]

All you need to do is multiply 84 by 4.

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80*4= 320

4*4=16

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I hope this helps!
~kaikers

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AveGali [126]

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Step-by-step explanation:

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5c squared- d squared+3/2c - 4d...c= -1. d= -4

riadik2000 [5.3K]

For this case we have the following expression:

$5c ^ 2-d ^ 2 + \frac {3} {2} c-4d$

We must find the value of the expression when:

$c = -1\\d = -4$

Substituting we have:

$5 (-1) ^ 2 - (- 4) ^ 2 + \frac {3} {2} (- 1) -4 (-4) =\\5 (1) -16- \frac {3} {2} + 16 =\\5-16- \frac {3} {2} + 16 =\\-11- \frac {3} {2} + 16 =\\- \frac {25} {2} + 16 =\\\frac {-25 + 32} {2} =\\\frac {7} {2}$

Finally, the value of the expression is:

$\frac {7} {2}$

ANswer:

$\frac {7} {2}$

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