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klio [65]
3 years ago
7

Solve the equation x2 − 6x = 15 by completing the square.

Mathematics
1 answer:
FromTheMoon [43]3 years ago
6 0
I don’t know I need the points tho sorry
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Distance Formula D=√(x2-x1)² + (y2 - y₁) ² a. 8.149 b. 8.84 c. 9.438 d.12.369 ​
lakkis [162]

Answer:

d

Step-by-step explanation:

using the distance formula

d = \sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2    }

with (x₁, y₁ ) = (- 2, 4 ) and (x₂, y₂ ) = (10, 1 )

d = \sqrt{10-(-2))^2+(1-4)^2}

   = \sqrt{(10+2)^2+(-3)^2}

  = \sqrt{12^2+9}

  = \sqrt{144+9}

  = \sqrt{153}

  ≈ 12.369

5 0
2 years ago
What's the number when the quotient of a number and -7 decreased by 2 is 10?
dsp73
Let's read through this and make an equation:
? ("number")
? / -7 ("quotient of a number and -7")
(? / -7) - 2 ("decreased by 2")
<span>(? / -7) - 2 = 10 ("is 10")
</span>
Now we can solve:
<span>(? / -7) - 2 = 10
</span><span>? / -7 = 12
</span>? = -84

The number is -84
3 0
3 years ago
Listed in the Item Bank are key terms and expressions, each of which is associated with one of the columns. Some terms may displ
beks73 [17]

Step-by-step explanation: we can not drag anything so please try to get that to work thank you!

5 0
3 years ago
Read 2 more answers
100 pts+brainliest
Damm [24]
Answer = 688 thousand / 688,000

Explanation - 536-517 = 19 so 19000 x 8 + 536000 = 688,000
3 0
2 years ago
Read 2 more answers
Pls solve this question
EleoNora [17]

Answer:

4

Step-by-step explanation:

(A+B+C+D) / 4 = 10 .... average=sum/number of item

(A+B+C)/3 = 3D ... average of first 3 (A,B,C) is triple of forth (D)

A+B+C = 9D

(9D+D)/4=10

10D = 40

D = 4

3 0
3 years ago
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