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stiks02 [169]
3 years ago
15

Which polynomial is equivalent to (-2n+5)^2​

Mathematics
1 answer:
Naddika [18.5K]3 years ago
3 0

Answer:

4n^2-20n+25

Step-by-step explanation:

(-2n+5)^2

=4n^2-20n+25

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You earn $15.00 per hour at your job. If you get a 15% raise at the end of each year, what will your hourly rate, h, be after 6
miv72 [106K]
After 6 years, the hourly rate should be 34.69 (or something around that since you may want to round)
6 0
3 years ago
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Why can't <img src="https://tex.z-dn.net/?f=x%5E2-5x-1" id="TexFormula1" title="x^2-5x-1" alt="x^2-5x-1" align="absmiddle" class
7nadin3 [17]

Answer:

Step-by-step explanation:

Discussion.

Not directly. But the quadratic formula can do it. But that's not your question.

the factors you get must contain the factors for 1 which are 1 and - 1

These factors must add to - 5. There's no way that will happen with 1 and - 1 and you would be creative math if you tried to say that you could make one of the factors (x -1-1-1-1-1-1). That creates a whole new question.

5 0
2 years ago
Choose the correct description of the graph of the inequality x - 3 &gt;= 5.
lions [1.4K]

The <em><u>correct answer</u></em> is:

D) Closed circle on 8, shading to the right.

Explanation:

First we must solve the inequality:

x - 3 ≥ 5

Add 3 to each side:

x - 3 + 3 ≥ 5 + 3

x ≥ 8

To graph this, we want a circle on 8 Since it is "greater than or equal to," 8 is included in the solution set. This means the circle will be closed.

Since it is "greater than," we want the numbers to the right of 8 on the number line.

This means the inequality will be a closed circle and shaded to the right.

8 0
3 years ago
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25% of my salary each month is paid out as taxes. Of the remaining, two-thirds is spent on expenses and the rest is saved. If my
soldi70 [24.7K]

Answer:

9,000

Step-by-step explanation

You pay one 4th of your money on taxes. 36000/4 is 9,000.

8 0
3 years ago
Heyy pls help! worth 20 points, and please only help if you know the answer. also no links those r kinda annoying lol
iragen [17]

Step 1: Find the slope:

    m= \dfrac{y_2-y_1}{x_2-x_1}= \dfrac{-2-7}{4-(-2)} =  \dfrac{-9}{6}= -\dfrac{3}{2}

This gives you y=-\dfrac{3}{2}x+b, but we need to find b.

To find b, substitute in one (x,y) pair and it doesn't matter which one.  I'll go with (4,-2):

    \begin{aligned}-2&=-\dfrac{3}{2}(4)+b\\[0.5em]-2&=-6+b\\[0.5em]4&=b\end{aligned}

Now take that b-value and plug in into the slope-intercept form:

     y=-\dfrac{3}{2}x+4

It's always a good idea to toss in the other x-value from the other point, to make sure it checks out.

7 0
3 years ago
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