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lesya692 [45]
3 years ago
8

I need answers to all of these. Please help!! I suck at math..

Mathematics
1 answer:
RSB [31]3 years ago
6 0
1)  (-4) + (-9) = -13 

2) 5 + (-12) = -7 

3) -6 + 5 = -1 

4) -7 + 7 = 0 

<span>5)  -7 + 2 ___ 3 + (-9)

       - 5  ____    - 6 

</span>-7 + 2  >  3 + (-9)

6)  <span>4 + (-8) ___ 6 + (-8) + (-6)  

     - 4 ____    - 8 

</span><span>4 + (-8) >  6 + (-8) + (-6)

7)  </span><span>$66

8)  </span><span>-$12
</span>
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Answer:

what?


Step-by-step explanation:


7 0
3 years ago
Solving linear-quadratic systems algebraically<br><br> y+2=(x-3)^2<br> y+3=x
Vikentia [17]

Answer:

(2, - 1 ) and (5, 2 )

Step-by-step explanation:

y + 2 = (x - 3)² → (1)

y + 3 = x ( subtract 3 from both sides )

y = x - 3 → (2)

Substitute y = x - 3 into (1)

x - 3 + 2 = (x - 3)² ← expand using FOIL

x - 1 = x² - 6x + 9 ( subtract x - 1 from both sides )

0 = x² - 7x + 10 ← in standard form

0 = (x - 2)(x - 5) ← in factored form

Equate each factor to zero and solve for x

x - 2 = 0 ⇒ x = 2

x - 5 = 0 ⇒ x = 5

Substitute these values into (2) for corresponding values of y

x = 2 : y = 2 - 3 = - 1 ⇒ (2, - 1 )

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5 0
3 years ago
15 point to the one that answers
riadik2000 [5.3K]
If you use PEMDAS, you’ll start with multiplication. so 54*96=5,184. 6*2=12.
so now the problem would be 96+5,184+32/98-12.
from here you would divide.
so, 32/98=0.33 (rounded up)
now you add.
96+5,184+0.33=5,280.33
so, 5,280.33-12=5,268.33.
the answer is:
5,268.33
hope this helped!!
6 0
3 years ago
Why is (12-23) • 2 not the same as 12-(3•2)
RoseWind [281]

Step-by-step explanation:

Note the system of equation, PEMDAS. First, you solve parenthesis, then multiplication, then subtraction.

In this case, solve each of the expression given to us. Remember that parenthesis is first:

(12 - 23) * 2 = (-11) * 2 = - 22

12 - (3 * 2) = 12 - (6) = 6

- 22 ≠ 6

~

3 0
3 years ago
Read 2 more answers
2 3 4 −(−1 1 2 )+(− 5 6 )−(− 3 8 )−(+4 2 3 )<br><br> please help fast worth 40 points not lieing
stiks02 [169]

Answer:

-95

Step-by-step explanation:

234+112-56+38-423

7 0
3 years ago
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