3 years ago

Which expression gives the closet estimate of 268+524

Mathematics

1 answer:

Mars2501 [29]3 years ago

5 0

Answer:270 + 520

Step-by-step explanation:

268+524

268 and round up 270

524 and round down 520

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Make a table of ordered pairs for the equation.

soldier1979 [14.2K]

X y
-2 -3
-1 -1
0 1
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3 years ago

Solve the following system of equations. What is one x-value of a solution?

gulaghasi [49]

Answer:

There is some mistake in the question, because the solutions are x = -1.445 and x = -34.555

Step-by-step explanation:

Given the functions:

f(x) = x² + 4x + 10

g(x) = -32x - 40

we want to find the points at which f(x) = g(x).

x² + 4x + 10 = -32x - 40

x² + 4x + 10 + 32x + 40 = 0

x² + 36x + 50 = 0

Using quadratic formula:

$x = \frac{-b \pm \sqrt{b^2-4(a)(c)}}{2(a)}$

$x = \frac{-36 \pm \sqrt{36^2-4(1)(50)}}{2(1)}$

$x = \frac{-36 \pm 33.11}{2}$

$x_1 = \frac{-36 + 33.11}{2}$

$x_1 = -1.445$

$x_2 = \frac{-36 - 33.11}{2}$

$x_2 = -34.555$

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3 years ago

8) The total weight of 15 boxes is 45 pounds. How much would 40 boxes weigh?

nirvana33 [79]

Answer:

120 pounds I think

Step-by-step explanation:

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2 years ago

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yaroslaw [1]

If the line is perpendicular the slope is the reciprocal so it would be
Y=-1/3x
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3 years ago

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posledela

The correct answer would be (3x-1)(2x+3)

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