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babymother [125]
3 years ago
9

Without actually performing the operations, determine mentally the coefficient of the x²-term in the simplified form of the foll

owing expression.
(-5²+3x-4) - (-2x²+x-3) + (-9x²+2x-5).

The coefficient of the x²-term is___.
please i really need help with this one i'm stuck.
Mathematics
1 answer:
zavuch27 [327]3 years ago
5 0

Answer:

-7

Step-by-step explanation:

Because there is no multiplication, it is just the x^2 terms. There is a -(-2x^2) and a -9x^2, so it is 2x^2 and -9x^2 or -7x^2, so the coefficient is -7.

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Which is eWhich is equivalent to 3 square root of 125quivalent to ?
Mkey [24]

Answer:

15\sqrt{5}

Step-by-step explanation:

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3 years ago
Solve the equation <br>50=4(x-7)-6(3x-6)
rusak2 [61]

we are given

50=4(x-7)-6(3x-6)

Firstly , we can distribute

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now, we can combine like terms

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3 0
3 years ago
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Find an equation of the line having slope -2 that passes through the point (1, 5)
Alenkasestr [34]
Slope of -2, (1,5)

y = mx + b
slope(m) = -2
(1,5)...x = 1 and y = 5
now we sub and find b, the y int
5 = -2(1) + b
5 = -2 + b
5 + 2 = b
7 = b
so ur equation is : y = -2x + 7

The approximation method used to estimate a point between 2 given points is called linear interpolation. The approximation method used to estimate a point that does not lie between 2 given points is called linear extrapolation.A linear function has the form f(x) = mx + b. Its graph is a line that has slope m and y intercept at (0,b).

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3 years ago
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wlad13 [49]

Answer:

I think the answer is city B

Step-by-step explanation:

Hope this helps

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3 years ago
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