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3 years ago

10

Write a two step equation that has -5 as it solution.

1 answer:

Sonbull [250]3 years ago

8 0

Answer:

$x^2 + 10x + 25 = 0$

Step-by-step explanation:

$x^2 + 10x + 25 = 0$

$(x + 5)^2 = 0$

$x = -5$

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Noel and Casey both start at the same place. Noel walks due south and Casey walks due east. After some time has passed, Noel is

Dovator [93]

Answer:

2.04 miles per hour

Step-by-step explanation:

Given

Noel

$n_1 =6miles$

$r_1 = 2mph$

Casey

$c_1 = 8miles$

$r_2 =1mph$

Required

The rate at which the distance increases

Their movement forms a right triangle and the distance between them is the hypotenuse.

At $n_1 =6miles$ and $c_1 = 8miles$

The distance between them is:

$d_1 = \sqrt{n_1^2 + c_1^2}$

$d_1 = \sqrt{6^2 + 8^2}$

$d_1 = \sqrt{100}$

$d_1 = 10miles$

After 1 hour, their new position is:

New = Old + Rate * Time

$n_2 = n_1 + r_1 * 1$

$n_2 = 6 + 2 * 1 = 8$

And:

$c_2 = c_1 + r_2 * 1$

$c_2 = 8 + 1 * 1 = 9$

So, the distance between them is now:

$d_2 = \sqrt{n_2^2 + c_2^2}$

$d_2 = \sqrt{8^2 + 9^2}$

$d_2 = \sqrt{145}$

$d_2 = 12.04$

The rate of change is:

$\triangle d = d_2 -d_1$

$\triangle d = 12.04 -10$

$\triangle d = 2.04$

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3 years ago

Let f(x) = 6x-5 and g(x) = 2x-1. Find f • g

tankabanditka [31]

Hi

(6x-5) (2x-1) = 12x²-6x-10x+5 = 12x²-16x +5

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3 years ago

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It would be 11.21 percent, hope it helps.

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The answer to the equation is 17

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