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Mice21 [21]
2 years ago
12

The factors of x2 + x – 12​

Mathematics
1 answer:
amm18122 years ago
6 0

Answer:

x^2+x-12=(x-3)(x+4)

Step-by-step explanation:

To factor x^2+x-12

Find factors of -12 that have a sum of 1.

Factors of -12:  1 and -12, 2 and -6, 3 and -4, 3 and -3, 6 and -2, 12 and -1

Factors of -12 that have a sum of 1:  -3 and 4

Therefore, x^2+x-12=x^2+4x-3x-12

Factor:  x(x+4) -3(x+4)

Factor out common term (x+4):  (x-3)(x+4)

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Carl earns $ 3.25 per hour walking his neighbor's dog. He walks them 1/3 of an hour in the norning and 1/2 of an hour in the aft
alekssr [168]
1/3 x 60 = 20 mins
Carl walks the dog for 20 mins in the morning.

1/2 x 60 = 30 mins 
Carl walks the dog for 30 mins in the afternoon.

20 + 30 = 50 mins
Carl walks the dog for 50 mins a day.

50 x 7 = 350 mins
Carl walks the dog for 350 mins a week.

Answer: 350 mins.
6 0
3 years ago
Mrs. Benton is making treat bags for her class. She has 245 Chocolate Twisters. If she puts 9 Chocolate Twisters in each treat b
Alex17521 [72]

Answer:

She can make 27 bags

2 pieces of candy is left over

Step-by-step explanation:

She has 245 Chocolate Twisters.

she puts 9 Chocolate Twisters in each treat bag,

1 bag hold 9 chocolates

9 chocolates = 1 bag

So 245 chocolates in how many bags

Divide 245 by 9

use long division

                       2 7 -----------> Quotient

                   ------------------------------------

          9           245

                        18                           (subtract it)

                   -------------------------

                          65

                          63              (subtract it)

                ----------------------------

                            2 -----------> remainder

She can make 27 bags

2 pieces of candy is left over

                       

8 0
2 years ago
Read 2 more answers
Solve this problem using the Trigonometric identities (secA+1)(SecA-1)= tan^2A
sammy [17]

Step-by-step explanation:

( secA + 1)( sec A - 1)

Using the expansion

( a + b)( a - b) = a² - b²

Expand the expression

We have

sec²A + secA - secA - 1

That's

sec² A - 1

From trigonometric identities

<h3>sec²A - 1 = tan ²A</h3>

So we have the final answer as

<h3>tan²A</h3>

As proven

Hope this helps you

7 0
3 years ago
Read 2 more answers
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navik [9.2K]

Answer:

Step-by-step explanation:

in order to make a box plot you need to know 5 things.

the minimum, the first quartile, the median, the third quartile, and the maximum value. aka <em>the five number summary </em>

using your calculator you can find that in this set of values:

min = 1

Q1 = 2.5

med (Q2) = 3

Q3 = 5.5

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the box plot will look something like this:

4 0
3 years ago
Factor 88a3 + 24a2 - 32a completely
Umnica [9.8K]

Answer: 280a

Step-by-step explanation: 88a . 3 + 24a.2-32a

88 .3a+24 . 2a-32a

3 0
3 years ago
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