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Sauron [17]
4 years ago
5

Math problem

Mathematics
1 answer:
dezoksy [38]4 years ago
6 0
No problem just ask me anything and I will be loved to answer anyone question
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Math help? Easy but I can't get it! :(
Vladimir79 [104]
Ok, so, the question states that the distance driven is proportional to the time driven in hours. So, the x value would be hours driven, while the y-value would be the number of miles driven. So, in order to find the speed at which she is driving, you will want to divide the number of miles by the number of hours driving, or 180/3, You answer should be 60, or 60 mph is her speed.
4 0
3 years ago
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Pleassseee help meh I’m lost
Hatshy [7]

Answer:

B

Step-by-step explanation:

7 0
3 years ago
You earn 60 dollars for mowing 5 lawns how much do you earn for mowing 15 lawns
Nookie1986 [14]

well 60/5=12

so you get $12 per yard

12*15=180

or you could notice that 5 goes into 15 3 times and then multiply 60*3 any way the answer is 180

4 0
3 years ago
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What is 2x^2+9x-18 in vertex form?
atroni [7]

Complete the square:

2<em>x</em>² + 9<em>x</em> - 18

2(<em>x</em>² + 9/2 <em>x</em>) - 18

2(<em>x</em>² + 9/2 <em>x</em> + 81/16 - 81/16) - 18

2(<em>x</em>² + 2 (9/4) <em>x</em> + (9/4)²) - 81/8 - 18

2(<em>x</em> + 9/4)² - 225/8

If you're not familiar with the method, the idea is to get a quadratic from the standard form

<em>ax</em>² + <em>bx</em> + <em>c</em>

into its vertex form

<em>a</em> (<em>x</em> - <em>h</em>)² + <em>k</em>

where (<em>h</em>, <em>k</em>) is the vertex of the parabola associated with the quadratic.

Expand the vertex form to get

<em>a</em> (<em>x</em>² - 2<em>xh</em> + <em>h</em>²) + <em>k</em>

<em>ax</em>² - 2<em>ahx</em> + <em>ah</em>² + <em>k</em>

For the two forms to be equivalent, we must have

-2<em>ah</em> = <em>b</em>

<em>ah</em>² + <em>k</em> = <em>c</em>

which means

<em>h</em> = -<em>b</em>/(2<em>a</em>)

<em>k</em> = <em>c</em> - <em>ah</em>² = <em>c</em> - <em>b</em>²/(4<em>a</em>)

In this case, <em>a</em> = 2, <em>b</em> = 9, and <em>c</em> = -18, so

<em>h</em> = -9/(2 • 2) = -9/4

<em>k</em> = 18 - 9²/(4 • 2) = -225/8

7 0
4 years ago
−1 + 6 = 5 + 8 + 4<br> Group of answer choices<br><br> 10<br><br> 1<br><br> -2<br><br> - 3 witch one
Sladkaya [172]

Answer:

12

Step-by-step explanation:

x = 5 + 8 + 4 - 6 + 1

x = 17 - 6 + 1

x = 11 + 1

x = 12

5 0
3 years ago
Read 2 more answers
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