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galina1969 [7]
3 years ago
12

Can someone explain how to solve these? I have 10 questions I need to answer for problems like this & I can't go on until I

solve it, so I just need the answer for this one and how to solve it. I need it finished fast because I need to bring up a low grade. Any help would be appreciated.

Mathematics
1 answer:
lisov135 [29]3 years ago
7 0
The value of x is 32°. i believe they’re called internal inverses? it’s because lines m and n are parallel. i’m not sure how else to explain, hope this helped!
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What is 17-4x=1-4x+12-2x
SIZIF [17.4K]
17-4x = 1-4x+12-2x

17-4x = 13-6x | +4x

17 = 13-2x | -13

4 = -2x | :(-2)

-2 = x
5 0
3 years ago
-6 + -8 10 points plz help
satela [25.4K]

Answer

The answer is negative 14.

Step-by-step explanation:

When you add a negative by a negative it equals a negative. Like if you add 1 + 1 it's going to equal 2 which is a positive, not a negative. So the answer is technically 8 + 6 which is 14 and all you have to do is add a negative sign.

4 0
3 years ago
N-6+4=24 solve for n
zubka84 [21]
N= 26
hope this helped !!
8 0
3 years ago
Read 2 more answers
What are the factors of 2x + 3x - 54? Select two options
tiny-mole [99]

Answer:

The answer: The factors are (2x-9) and (x+6).

The Problem:

Factor 2x^2+3x-54

Step-by-step explanation:

So I'm going to do trial factors using the choices to aid me.

Factored form for this problem if it exist will be in the form:

(mx+n)(kx+p).

In general this is what it would look like if we factored any quadratic in terms of x (given the quadratic is not prime but technically you could factor even over the complex numbers).

Let's look at:

(mx+n)(kx+p)

We want to choose k \text{ and } m such that when you multiply them you get 2.  Well those would have to be 2 and 1.

(2x+n)(x+p)

we want to choose n \text{ and } p such that when you multiply them you get -54. Based on the choices we want to get with -9 and 6, or 9 and -6. We don't know the order we want to choose it in either.

For example which of these would work:

(2x-6)(x+9)

(2x+6)(x-9)

(2x-9)(x+6)

(2x+9)(x-6)

We are going to consider only the outer and inner of FOIL since we already know the first times the first is 2x^2 and the last times the last is -54.

Let's test the first one:

(2x-6)(x+9)

Outer:  2x(9)=18x

Inner: -6(x)=-6x

------------------------ADD!

18x-6x=12x

The first choice did not give us the middle term 3x.

Trying the second one would give us the opposite since they are in the same form as previous just the + and - are switched.

Let's look at the third one:

(2x-9)(x+6)

Outer: 2x(6)=12x

Inner: -9(x)=-9x

--------------------------ADD!

12x-9x=3x

This is the winner.

The answer: The factors are (2x-9) and (x+6).

7 0
3 years ago
Read 2 more answers
Which one is it and why? Please actual answers only
Andrej [43]

Answer:

The first answer, 3(pi) km^2

Step-by-step explanation:

3 x pi squared determines the area

7 0
3 years ago
Read 2 more answers
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