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inysia [295]
3 years ago
12

What is the answer for 710 1/4 - -320 1/2

Mathematics
1 answer:
OLEGan [10]3 years ago
6 0

Answer:

389 and 3/4

Step-by-step explanation:

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What are the solutions of the quadratic equation (x + 3)(x +3) = 49? Ax = -2 and x = -16 Bx = 2 and x = -10 Cx = 4 and x = -10 D
Ivahew [28]

Answer:

4 and -10

Step-by-step explanation:

\displaystyle (x + 3)(x +3) = 49 \\ x^2+3x+3x+9=49 \\ x^2 +6x+9=49 \\ x^2 + 6x + 9 - 49 = 0 \\x^2+6x-40=0 \\\\ \Delta=b^2-4ac \\ \Delta=6^2-4 \cdot 1 \cdot (-40) \\ \Delta=36+160 \\ \Delta=196 \\ \\ X_{1,2}=\frac{-b \pm \sqrt{\Delta} }{2a}  \\ \\ X_1=\frac{-b+\sqrt{\Delta} }{2a} = \frac{-6+14}{2} = \frac{8}{2}=4 \\ \\ X_2=\frac{-b-\sqrt{\Delta} }{2a}  = \frac{-6-14}{2}=\frac{-20}{2} = -10

4 0
3 years ago
20 POINTS)
olga_2 [115]

Answer:

D) 1,2

Step-by-step explanation:

Zeroes of a function are the x-values where y= 0

5 0
3 years ago
Please help I’ll mark you as brainliest if correct!
xeze [42]

Answer:

♥♥♥

I tried solving this answer and got 25.2. So, I think you're answer will be 25.

Step-by-step explanation:

<em>I divided 63 by 2.5. Hope I helped. </em>

8 0
3 years ago
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6+2x=5-7x WHAT DOES X EQUAL PLEASE ANSWER FAST
ycow [4]

Answer:

x= -1/9

Step-by-step explanation:

6+2x=5-7x

-2x. -2x

6=5-9x

-5. -5

1=-9x/-9

-1/9=x

7 0
3 years ago
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Factor the trinomial below. x^2 - 14x + 45
MissTica

Answer:

B

Step-by-step explanation:

factors of 45 that when u multiply give u 45 when u add give u -14

6 0
2 years ago
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