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2 years ago

9

Factor the trinomial: x^2-8x-33please help I'm stumped

2 answers:

Anon25 [30]2 years ago

8 0

-33=-11*3
-8=-11+3
so
(x-11)(x+3)

leonid [27]2 years ago

3 0

Okay let's take it step by step. First, let's see what two factors of -33 are equal to -8. What are the factors of -33? We can do -33 and 1, -1 and 33, -11 and 3, or -3 and 11. The right pair will be -11 and 3 because -11 plus 3 is -8, which is what we were looking for all along! Okay, let's split up those two into 2 different equations. Let's next split up the x^2. We can do this by breaking it into x and x, because x times x is x^2. Alright! Now we just have to right the equation! Let's start with the

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write an equation in slope-intercept form of the line whose y-intercept is -3 and the line is perpendicular line whose equation

Artemon [7]

first you need to find the slope of he current equation by changing it to y=mx+b

3x-2y=9 subtract 3x from both sides

-2y=-3x+9 divide both sides by -2

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3 years ago

Ethan needs to save at least $500 to purchase a new dirt bike. So far, he has saved $175. If he hopes to use two-fifths of his n

IRISSAK [1]

Answer:

$812.5

Step-by-step explanation:

Given: Ethan need to save at least $500.

He has saved so far $175

Ethan hope to use two-fifths of his next paycheck to cover the remaining amount.

Lets assume Ethan´s paycheck amount be "x"

First finding the remaining amount to be covered.

Remaining amount= $\$ 500 - \$ 175= \$ 325$

∴ The remaining amount to be covered is $325.

As given, Ethan hope to use two-fifths of his next paycheck to cover the remaining amount.

Now, using the inequality to find the amount of paycheck.

⇒ $x\times \frac{2}{5} \geq \$ 325$

multiplying both side by 5

⇒ $x\times 2\geq 325\times 5$

divinding both side 2

⇒ $x\geq \frac{1625}{2}$

∴ $x\geq \$ 812.5$

Hence, Ethan must make at least $812.5 in his paycheck to cover his remaining anount to buy dirt bike.

6 0

3 years ago

Simplify the square root of -121?

poizon [28]

Answer:

11<em>i</em>

Step-by-step explanation:

first you have to get a postive root.

$\sqrt{-121} \\ \sqrt{-1} \sqrt{121} \\$

then you solve the square roots from there, keeping in mind the imaginary number answer to the square root of -1, <em>i</em>.

$\sqrt{-1} = i\\ \sqrt{121} =11\\ 11i$

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2 years ago

Read 2 more answers

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