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3 years ago

Need help with number 8

Mathematics

1 answer:

Evgen [1.6K]3 years ago

8 0

The slope-point formula of a line:

$y-y_1=m(x-x_1)$

We have:

$m=2,\ (-8,\ 1)\to x_1=-8,\ y_1=1$

Substitute:

$y-1=2(x-(-8))\\\\\boxed{y-1=2(x+8)}$

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Can anyone help with my algebra 1 homework??

Anni [7]

Answer:

I believe the final answer is x=3

Step-by-step explanation:

when trying to solve equations, always sort things out and prioritize things, that way it's easier to get to the final answer.

x+2x-5=4

3x-5=4 just move the -5 to the other side and make it a positive

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3 0

3 years ago

Simplify the expression.

Umnica [9.8K]

3(2y - 8) - 2y(5 - y)

= 6y - 24 - 10y + 2y^2

= 2y^2 - 4y - 24 Answer

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3 years ago

Find the volume of the following. Please round your answer to the nearest tenth. Please do not put units. Hint: You need to use

Sophie [7]

Answer:

Step-by-step explanation:

<u>The Volume of a Square Pyramid</u>

Given a square-based pyramid of base side a and height h, the volume can be calculated with the formula:

$\displaystyle V=\frac{1}{3}a^2h$

We are given a square pyramid with a base side a=14 ft but we're missing the height. It can be calculated by using the right triangle shown in the image attached below, whose hypotenuse is 25 ft and one leg is 7 ft

We use Pythagora's theorem:

$25^2=h^2+7^2$

Solving for h:

$h^2=25^2-7^2=625-49=576$

$h=\sqrt{576}=24$

The height is h=24 ft. Now the volume is calculated:

$\displaystyle V=\frac{1}{3}*14^2*24$

V = 1,568

3 0

2 years ago

Find the probability that a randomly generated bit string of length 10 does not contain a 0 if bits are independent and if a 0 b

jeka94

Answer:

Step-by-step explanation:

From the given information; Let's assume that R should represent the set of all possible outcomes generated from a bit string of length 10 .

So; as each place is fitted with either 0 or 1

$\mathbf{|R|= 2^{10}}$

Similarly; the event E signifies the randomly generated bit string of length 10 does not contain a 0

Now;

if a 0 bit and a 1 bit are equally likely

The probability that a randomly generated bit string of length 10 does not contain a 0 if bits are independent and if a 0 bit and a 1 bit are equally likely is;

$\mathbf{P(E) = \dfrac{|E|}{|R|}}$