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umka2103 [35]
3 years ago
7

What is the constant and missing variable of these problems

Mathematics
1 answer:
Studentka2010 [4]3 years ago
7 0

Answer:

14

Step-by-step explanation:

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What is the midpoint of of VX, find the length of VX
Rashid [163]
The midpoint is exactly in the middle
meaning
VW = WX
3x+7 = x + 25
solve from x
3x + 7 = x + 25
subtract 7 from both sides
3x = x + 18
subtract x from both sides
2x = 18
divide both sides by 2
x = 9 
Now we have x = 9 but we aren't done.

plug what we found into the expressions
3x + 7 
3(9) + 7
27 + 7
34

x + 25
9 + 25
34

34 + 34 
68

The length of VX is 68.
Or option D.) 68

Hope this helps
8 0
3 years ago
Is -8-2(3+2n) +7 equivalent to -30-13n
JulsSmile [24]

Answer:

NO

-8-2(3+2n) +7 = -4n-7

-30-13n=

7 0
3 years ago
Expand. Your answer should be a polynomial in standard form. (x2+4)(x2−6)=(x^2+4)(x^2-6)=(x2+4)(x2−6)=
Dafna11 [192]

Answer:

x^4 -2x^2 -24

Step-by-step explanation:

(x^2+4)(x^2−6)

FOIL

First: x^2*x^2 = x^4

Outer: x^2 *-6 = -6x^2

Inner: x^2 *4 = 4x^2

Last: 4*-6 = -24

Add them together

x^4 -6x^2 +4x^2 -24

Combine like terms

x^4 -2x^2 -24

This is in standard form since the powers decrease

8 0
2 years ago
Read 2 more answers
The sales tax rate in a certain state is 8%. How much would you pay in total for a taxable item that costs $25.25?
faust18 [17]
25.25x 0.08= 2.02 so answer is 2.02
6 0
2 years ago
Read 2 more answers
What is 2 ×86 dived by 297 thousandths
Tom [10]
Dont quote me on this but i think it is 10 because 86 × 2 is 172 and 297 ÷ 172 is 10 I think
3 0
2 years ago
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