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3 years ago

9

I need this, please. I am willing to give brainly

1 answer:

IgorLugansk [536]3 years ago

4 0

Answer:

x=28

Step-by-step explanation:

180= 38 + (4x+30)

142= (4x+30)

112=4x

x=28

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14 through 19 whole problem solving and answers

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What is the slope of this line?<br><br> A: - 1/3<br><br> B: - 2/3<br><br> C: 2/3<br><br> D: 1/3

bezimeni [28]

Answer:

The answer is C. 2/3

Step-by-step explanation:

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3 years ago

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Daniel wants to buy cookies for her friends. The area of a cookie is 113.04 in2. What is the circumference of the cookie?

prisoha [69]

Answer:

The circumference of the cookie is 37.68 inches.

Step-by-step explanation:

We have,

The area of a cookie is 113.04 square inches.

It is circular in shape. The area of circle is given by :

$A=\pi r^2$

r is radius of circle

$r=\sqrt{\dfrac{A}{\pi}} \\\\r=\sqrt{\dfrac{113.04}{3.14}} \\\\r=6\ \text{inch}$

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So, the circumference of the cookie is 37.68 inches.

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3 years ago

This past week the 8<br> hens laid a total of 48<br> eggs. How many eggs did<br> each hen lay?

cupoosta [38]

Answer:

6 eggs

Step-by-step explanation:

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2 years ago

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Whats the roots of the following three problems:

klemol [59]

QUESTION 1

The given function is

$f(x)=\frac{(x-3)(x-1)}{(x-1)(x+2)}$

We simplify to get;

$f(x)=\frac{x-3}{x+2}$

This function is equal to zero when $x-3=0$

$\Rightarrow x=3$

QUESTION 2

The given function is

$f(x)=\frac{5x^2-10x+5}{2x^2-5x+3}$

$f(x)=\frac{5(x^2-2x+1)}{2x^2-5x+3}$

We factor to get;

$f(x)=\frac{5(x-1)^2}{(2x-3)(x-1)}$

$f(x)=\frac{5(x-1)}{(2x-3)}$

This function equals zero when

$5(x-1)=0$

$x=1$

QUESTION 3

The given function is

$f(x)=\frac{x^3-8}{x^2-6x+8}$

We factor to get,

$f(x)=\frac{(x-2)(x^2+2x+4)}{(x-2)(x+4)}$

$f(x)=\frac{x^2+2x+4}{x+4}$

The function equals zero when $x^2+2x+4=0$

$D=b^2-4ac$

$D=2^2-4(1)(4)$

$D=-12$

Hence the equation has no real roots.

The complex roots are

$x=-\sqrt{3}i-1$ or $x=-1+\sqrt{3}i$

4 0

3 years ago