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alina1380 [7]
2 years ago
12

2x^2-7x-15put this function into standard form

Mathematics
1 answer:
kari74 [83]2 years ago
8 0

Answer:

It is already in standard form. 2x^2-7x-15 is correct.

Step-by-step explanation:

The standard form of a quadratic equation (which this equation is since there is an x^2 term) is described as ax^2+bx+c=0, where a≠0.

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X^2-x-12 factor completely
steposvetlana [31]
Use the sum-product pattern

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x2+3x−4x−12
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Common factor from the two pairs

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x2+3x−4x−12

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x
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x(x+3)−4(x+3)
3
Rewrite in factored form

(

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−
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x(x+3)−4(x+3)
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5 0
2 years ago
Aplumber charges a $75 flat fee for jobs lasting up to an hour and $30 for each hour of labor after the first hour. Which
tamaranim1 [39]
<h3><u>Answer</u>:- </h3>

\longrightarrow \sf 75+ 30(h-1)

<h3><u>Solution:-</u></h3>

<u>Given </u><u>that </u><u>:</u><u>-</u>

  • job last for h hours
  • Cost of job lasting more than 1 hour = $30
  • Cost for the first hour = $75

\leadstoRemaining hours for which the job will last after first hour= (h-1)

<u>Therefore</u>,

Cost for subsequent hours = 30×(h-1)

= 30(h-1)

Total Cost for job = Cost for 1st hour + Cost for subsequent hours

\quad\quad\quad\quad\quad\quad\quad\quad\boxed{\sf{= 75+30(h-1)}}

7 0
2 years ago
4 points
USPshnik [31]

Answer:

C $1.75

Step-by-step explanation:

$469 divided by 268 is $1.75, so it's $1.75 per item

5 0
3 years ago
Please help giving brainly
Irina18 [472]

Answer:

proportion used: 7/20

7emails were from the same person

Step-by-step explanation:

35/100= 7/20

7/20 of 20

20/20=1

1x7= 7

5 0
3 years ago
Read 2 more answers
Write an equation that is perpendicular to y=3/5x-1 and passes through the point (9,14)
Leokris [45]

Answer:

y=(-5/3)x+29

Step-by-step explanation:

we will use the base formula y=mx+b

In order to be perpendicular, the slope must be the flipped fraction and have the opposite sign, so our m is (-5/3)

y=(-5/3)x+b

You can plug in the (9,14) point in order to find the b

14=(-5/3)(9)+b

14=(-45/3)+b

14=(-15)+b

14+15=b

29=b

and so altogether our equation is y=(-5/3)x+29

8 0
2 years ago
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