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Elenna [48]
3 years ago
12

X+5y+2-7xx + 5 y + 2y − 7x

Mathematics
1 answer:
kari74 [83]3 years ago
6 0
X + 5y + 2 - 7x + 5y + 2y - 7x

First collect like terms (the numbers that have the same letters after them):

x - 7x - 7x = -13x

5y + 5y + 2y = 12y

Then put these back into the expression:

2 - 13x + 12y
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There are 9 red marbles and 5 blue marbles in a bag. What is the ratio of blue marbles to all marbles
LenKa [72]

Answer:

9:5

Step-by-step explanation:

I think it's 9:5 sorry if I'm wrong.

4 0
2 years ago
A triangle, where the two angles are 30° and 90°, what are the remaining angles
Aleksandr-060686 [28]

Answer:

60⁰

Step-by-step explanation:

A triangle has three angles.

The sum of its angles = 180⁰

[ By angle sum property ]

Let the unknown angle be 'x'

Then,

30⁰ + 90⁰ + x = 180⁰

120⁰ + x = 180⁰

x = 180⁰ - 120⁰

x = 60⁰

Therefore, the unknown angle will be equal to 60⁰

7 0
3 years ago
Read 2 more answers
Noemi wants to divide 2x^2−x+4 by x−5 using synthetic division.Which answer shows the correct process? A synthetic division diag
STALIN [3.7K]

Answer:

2x + 9 with a remainder of 45.

Step-by-step explanation:

If the divisor is x-5, use the divisor 5 in synthetic div.

Taking the coefficients 2, -1 and 4 from the dividend, we get:

    ------------------

5  /    2    -1    4

              10   45  

    --------------------

       2       9   49

This tells us that the quotient is 2x + 9 and that the remainder is 49.

4 0
4 years ago
What is the relationship between Za and Zb / choose 1 answer.
Stolb23 [73]

Answer:

they are supplementary angles since they add up to 180

6 0
3 years ago
Hey guys, I know this is a lot so I am offering a lot of points. I was stumped on this paper, I just need a little help on how t
Llana [10]
So for number one, you would have to divide the number by the one being multiplied. I’ll do the first one and you can do the second one, comment if you need help.
(4)*_=-12 —> -12/4 = -3
Check : -3*4 = -12
The answer would be -3.
For the second one, multiply all the numbers first and find the actual answer.
(4)*(-7)*(-1) —> 4 * -7 = -28 —> -28 * -1 = 28
Then multiply their answers.
Evangelina : (-28)*(-1) = 28
Josh : (4)*(7) = 28

Now check who has the right answer and explain why.

For number three, use the letters and plug in the values that are being given to you.

e —> -e
-e * f = -15
-e * g = 6
f * g = -10

Now solve from there!

I really hope I helped, comment if you have any questions:)
5 0
3 years ago
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