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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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The scale drawing of a 10 foot long minivan has a scale factor 2 inches = 1 foot. how long is the minivan on the scale drawing?
kicyunya [14]

Answer:

20in

Step-by-step explanation:

Length = 10*\frac{2in}{1ft} =20in

4 0
3 years ago
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8x18÷4+15 use pemdas right answers only please​
Shkiper50 [21]

Answer:

51

Step-by-step explanation:

PEMDAS means parenthesis (there are none), exponents (there are none), multiplication. So you multiply 8x18 to get 144. Then you have division, so 144/4 is 36. Finally, you add this number to 15 to get 51 as your final answer.

5 0
2 years ago
What is the equation of the line that is parallel to the given line and passes through the point (12, −2)? y = –Six-fifths x + 1
lapo4ka [179]

Answer:

y = Five-sixths x – 12

Step-by-step explanation:

In the picture attached, the given line is shown. Its slope is:

m = [6 - (-4)]/[12 - 0] = 5/6

The line that is parallel to the given line has the same slope.

A line with slope m that pass through (x1, y1) satisfies:

y - y1 = m(x - x1)

Replacing with m = 5/6 and point (12, -2):

y - (-2) = 5/6(x - 12)

y + 2 = 5/6x - 10

y = 5/6x - 10 - 2

y = 5/6x - 12

5 0
3 years ago
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Expand and simplify this <br>can you help  <br>(2x²−3x+4) ( x²+5x−7) 
Burka [1]
(2x^2-3x+4) ( x^2+5x-7)= \\ \\=2x^2*x^2+2x^2*5x-2x^2*7-3x*x^2-3x*5x+3x*7+4*x^2+4*5x-4*7=\\ \\=2x^4+10x^3-14x^2 -3 x^3-15x^2+21x +4 x^2+20x-28=\\ \\=2x^4+7x^3-25x^2 +41x -28


3 0
3 years ago
Plsssssssss help
ICE Princess25 [194]

Answer: choice A

Step-by-step explanation:

5 0
4 years ago
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