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iragen [17]
3 years ago
7

15 pts + brainliest to right/best answer

Mathematics
2 answers:
KIM [24]3 years ago
6 0

Answer:

(7x+6    )  ( x -2   )

Step-by-step explanation:

7x^2 -8x-12

(7x    )  ( x    )

What are the factors of -12

-1*12       1 * -12

-2*6          2 * -6

-3*4           3 * -4

Something * 7 + something = -8

We need to fill in   with the factors

-2 * 7 + 6 = -8

-14 -6 = -8  True

7x^2 -8x-12

(7x+6    )  ( x -2   )

asambeis [7]3 years ago
4 0

Split the second term 7x^2 - 8x - 12 into two terms

7x^2 + 6x - 14x - 12

Factor out common terms in the first two terms, then in the last two terms

x(7x + 6) - 2(7x + 6)

Factor out the common term; 7x + 6

<u>(7x + 6)(x - 2) </u>

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Find the missing side length of the right triangle 5in 15in
ira [324]

Answer:

15.8183

Step-by-step explanation:

just round it you can do that ;)

7 0
3 years ago
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A wheel on a piece of machinery makes one revolution every minute (60 seconds.) How many degrees does it move in 10 seconds?
solmaris [256]

Answer:

It moves 6 degrees a second that means it moves 60 degrees in 10 seconds.

Step-by-step explanation:

360/60=6

6x10=60.

360 is how many degrees there are in a second and 60 seconds in a minutes.

7 0
3 years ago
Choose all the sets containing the number –1.576.
strojnjashka [21]

Answer:

This number belongs to rational number and real number set.

Step-by-step explanation:

The given number is a rational number because it is terminating.

It is also a real number because it does not have any imaginary part.

So, this number belongs to rational number and real number set.

It cannot be an integer or whole number as it has decimal.

It cannot be irrational as well, as it is terminating.

3 0
3 years ago
Read 2 more answers
How would I do this problem?
Softa [21]

Answer:

Step-by-step explanation:

The sum of the interior angles of an n gon is found by using the following formula.

(n-2)*180 = sum of the interior angles.

(n - 2) * 180 = 3960                     Divide by 180

(n - 2) 180/180 = 3960/180         Show the division

n - 2 = 22                                     Add 2 to both sides.

n -2+2=22+2                               Combine

n = 24

======================================

To find the size of each angle, use

(n - 2)*180/n

(24 - 2)*180/24

22 * 180/24

3960/24 = 165

===========

another way

===========

You already know there are 24 sides. You are given the sum of the interior angles as 3960

All you really need to do is 3960/24 = 165

8 0
3 years ago
What opposite operation would you use to solve the equation and why?<br> 3x = 24
mote1985 [20]

Answer:

24 ÷ 3 = 8

x = 8

Use division.

Step-by-step explanation:

3 times a number = 24

24 divided by 3 equals that same number

7 0
2 years ago
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