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3 years ago

(-8x + 2) + (-5x + 7)

Mathematics

1 answer:

HACTEHA [7]3 years ago

8 0

Answer:

Step-by-step explanation:

(-8x + 2) + (-5x + 7)

-8x + 2 - 5x + 7

- 13x + 9

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If a town with a population of 1,500 doubles in size every 18 years, what will the population be 36 years from now? *

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After the first 18 years, the population of 1500 will be doubled to 3000.

After the next 18 years, making 36 years total, the population of 3000 will double to 6000.

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3 years ago

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Describe and correct the error a student made in finding the midpoint cd with c(-4,5) and d(-1,-4).

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Answer:

Step-by-step explanation:

The formula for finding the midpoint of two coordinates is expressed as;

M(X,Y) = $(\frac{x_1+x_2}{2} , \frac{y_1+y_2}{2})$

Given the coordinates c(-4,5) and d(-1,-4), x1 = -4, y1 = 5, x2 = -1 and y2 = -4.

For the X coordinate of the midpoint

X = x1+x2/2

X = -4+(-1)/2

X = -4-1/2

X = -5/2

X = -2.5

Similarly for Y:

Y = y1+y2/2

Y = 5+(-4)/2

Y = 5-4/2

Y = 1/2

Y = 0.5

Hence the midpoint coordinate of C(-4,5) and D (-1,-4) is (-2.5, 0.5)

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3 years ago

Iris is building a model of the Washington Monument. Her model measures 15 in. tall and is 1.5 in. wide at the base. The actual

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The answer will be 550 ft

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4 years ago

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Henry wants to pour 57.93 grams of salt into a container. So far, he has poured 28.3 grams. How much more salt should Henry pour

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Answer:

29.63

Step-by-step explanation:

Since there is already 28.3 grams in the container, you just have to subtract 57.93 and 28.3 to get your answer because 57.93 is the total.

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3 years ago

a racing car starts fron rest .if it gains an acceleration of 5m/second square in 10 second ,calculate the final velocity.

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Answer:

The final velocity would be 50 m/s.

Its by formula,

$a = \frac{v - u}{t}$

hope it helps...

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3 years ago