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-BARSIC- [3]
3 years ago
13

Please help wuth math 25 points

Mathematics
1 answer:
lesya692 [45]3 years ago
8 0
The answer is A-(2,-1)

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2 x<br>— = -----<br>7 x + 10<br><br>x = ???​
valentina_108 [34]

9514 1404 393

Answer:

  x = 4

Step-by-step explanation:

Maybe you want to find x such that ...

  2/7 = x/(x +10)

  2(x +10) = 7x . . . . . . multiply by 7(x+10)

  20 = 5x . . . . . . . . . . subtract 2x, simplify

  4 = x . . . . . . . . . . . . divide by 5

_____

<em>Additional comment</em>

You can almost solve this "by inspection" if you recognize the difference of the denominator and numerator is 5 on the left and 10 on the right. If you multiply the fraction on the left by 2/2, you get 4/14, the values in x/(x+10) in the fraction on the right.

6 0
2 years ago
Help please!!
kondor19780726 [428]
C is the correct answer. A line is proportional if it is a straight line that passes through the origin, and while it does pass through the origin, it isn’t completely straight.
8 0
3 years ago
A leaky pool loses 2 and one-fourth inches of water each day. Jermaine and Mildred are asked to determine the change in the amou
Licemer1 [7]

Answer:

  Mildred is correct because she distributed 5 correctly

Step-by-step explanation:

We cannot tell exactly which solution goes with which student, but we believe you are saying ...

Mildred’s Solution:

  5 (Negative 2 and one-fourth) = 5 (negative 2 minus one-fourth)

  = negative 10 minus StartFraction 5 over 4 EndFraction

  = negative 11 and one-fourth

This solution describes the correct distribution of 5. Whoever it belongs to gave the correct solution.

7 0
3 years ago
Read 2 more answers
What is (2x^2+6x-3) added to (2x^3-3x+2)?
Bas_tet [7]
2x² + 6x - 3 + 2x³ - 3x + 2

Combine like terms

2x³ + 2x² + 6x - 3x - 3 + 2

Final answer:
2x³ + 2x² + 3x - 1
8 0
3 years ago
Read 2 more answers
A cone has a diameter of 24cm and a volume of 2713cm3. What is best approximation of height of cone?
Leokris [45]
V=(1/3)hpir^2
aprox

d=2r
d/2=r
d=24
r=24/2=12

V=2713

2713=(1/3)hpi(12^2)
2713=(1/3)hpi(144)
2713=48pih
divide both sides by 48
56.5208=hpi
aprox pi=3.14
divide both sides by 3.14
56.5208/3.14=h=18.0003
height=18cm
7 0
3 years ago
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