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valina [46]
3 years ago
10

How many solutions does 5x^2+2=4x have

Mathematics
1 answer:
LenaWriter [7]3 years ago
8 0

This has exactly two solutions.

You can find the number of a solutions that a problem has by its highest power of x. Since x is raised to the 2nd power in here, it has two solutions. In some cases, these solutions will be irrational, double roots, or non-real, but there will still be two of them regardless.

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pickupchik [31]
If your average speed is 2.05 and your time is the average of .87+.94+.72=0.843 then your answer should be 1.728 because distance= speed x time. I don’t know if this is correct because you didn’t label what the numbers were but I hope this helped you!! :)
3 0
3 years ago
Read 2 more answers
2n+5=20?????????????
Oksanka [162]

2n+5=20

Subtract 5 from 5 and 20

2n=15

Divide 15 and 2 by 2

n=7.5

:P

8 0
4 years ago
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PLEASE HELP
liq [111]
--------------------------------------------
Question
--------------------------------------------
3 \times 1000 + 6 \times 100 + 1 \times 10 + 2 \times \frac{1}{10}  + 1 \times  \frac{1}{1,000}

--------------------------------------------
Convert the fractions to decimals
--------------------------------------------
3 \times 1000 + 6 \times 100 + 1 \times 10 + 2 \times 0.1  + 1 \times  0.001

--------------------------------------------
Evaluate each term
--------------------------------------------
3000 + 600 + 10 + 0.2 + 0.001

--------------------------------------------
Add them up
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3610.201

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Answer : 3610.201
--------------------------------------------
3 0
3 years ago
The dashed triangle is the image of the solid triangle. The center of dilation is (−5, 7) .
adell [148]
Before dilation:
the height of the triangle is h₁ = 7 - (-1) = 8
the width of the triangle is w₁ = 7 - (-5) = 12

After dilation:
the height of the is h₂ = 9-7 = 2
the width of the triangle is w₂ = -5 - (-8) = 3

The scale factor is h₂/h₁ = 2/8 = 1/4 = 0.25
Also, the scale factor is w₂/w₁ = 3/12 = 1/4 = 0.25

Answer: The scale factor is 0.25

3 0
4 years ago
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Find the value of 5x - 2y+ 3z when x = 7 , y = 11 and z = -1
Oksanka [162]
By replacing you get:

5*7-2*11+3*(-1) = 35-22-3= 10

so the answer is 10.

If you like my answers, feel free to follow me and ask me more maths problems. :)
7 0
3 years ago
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