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jekas [21]
3 years ago
12

HELP

Mathematics
1 answer:
Xelga [282]3 years ago
8 0

Answer:

21x^2+3x+12

Step-by-step explanation:

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3x + 5y = 7<br> -3x - 2y = -1
Oksanka [162]

Answer:

(-1,2) y=2 x=-1

Step-by-step explanation:

This is a system of equations and in this you see there is 3x and negative three x. To solve this you need tp get rid of one of the variables. so we can add the two equations together to get 3y=6. This means that y=2 if we divide by 3 on both sides. Then we just plug 3 in for y and we get 3x+10=7. We subtract 10 on both sides to get 2x=-3 which means x=-1.

6 0
3 years ago
A rectangle that is 2 inches by 3 inches has been scaled by a factor of 7 if you want to cooy back to its original size by what
slamgirl [31]

Answer:

1/7

Step-by-step explanation:

Given that:

Using a scale factor of 7 ; the dimension of a rectangle is : 2 inches by 3 inches

In other to obtain the original size of the rectangle, all that is needed is to multiply the sacl d dimension by the reciprocal of the initi. Scale factor used, that is 1 / 7

This gives :

(2 inches by 3 inches) * 1/7

2/7 inches by 3/7 inches

Hence, required scale factor is 1/ 7

3 0
3 years ago
According to the rational root theorem, the numbers below are some of the potential roots of f(x)=10x^3+29x^2-66x+27. Select all
Reil [10]

Answer:

-9/2, 3/5, 1

Step-by-step explanation:

Those are the answers on edginuity.

6 0
3 years ago
The measure of one angle is 80 degrees. What is the measure of its supplement? A 80 degrees B 100 degrees C 10 degrees D I don't
ArbitrLikvidat [17]

Answer:

B. 100 degrees

Step-by-step explanation:

5 0
3 years ago
What is 149/18 in its simplest form
Helga [31]
Its simplest form is 8 5/18
4 0
3 years ago
Read 2 more answers
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