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posledela
3 years ago
7

What is the sum of the interior angles of a 28-gon? s = (n-2) 180

Mathematics
1 answer:
zimovet [89]3 years ago
3 0

Answer:

1,00090

Step-by-step explanation:

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NEED HELP URGENT!! How do I solve this on number 30?(please go through the steps)
tatiyna

x^2+6x-5=0

x^2=2x

2x+6x-5=0

2x+6x=8x

8x-5=0

+5 +5

(if you don’t know what I’m doing here is that I’m removing the negative 5 by putting a positive 5 since both of them make 0. Also the “x” always stay alone and the unit stays as the unit)

(I putted the positive under the 0 because what u do to the unit you need to do the same thing with the other.)

8x/8=5/8

(If ur lost here it means dividing.)

The answer

X=0.625

(btw I’m not really sure if this is right so um don’t really trust me in this lol)

3 0
3 years ago
How many variable terms are in the expression 3x3y + 5xz − 4y + x − z + 9?
Dimas [21]

Answer:

3

Step-by-step explanation:

there are only x y and z used in the expression no matter how many times they multiply.

8 0
2 years ago
TIME CRUCIAL!! i will give you thanks please help!!! ASAP! will mark as brainliest!!
ozzi
\overline{y} (prounounced "y bar") is the mean of the y values

Add up the y values to get
5+7+10+15+18 = 55

Then divide by 5 (because there are five y values) to get
55/5 = 11

Therefore,
\overline{y} = 11

The answer is choice C
3 0
3 years ago
How are reciprocals used in division with rational numbers?
Neko [114]

Answer:

When dividing rational numbers, multiply by the "right" reciprocal. In this case, the "right" reciprocal means to take the reciprocal of the fraction on the right-hand side of the division operator.

8 0
2 years ago
Read 2 more answers
Is what i did correct?
yaroslaw [1]
No, you should have reduced each base to...
3^(3*2x) = 3^(2*(x-3))
and then you can cancel each base
3*2x = 2*(x-3)
6x = 2x-6
4x= -6
x = -3/2
7 0
3 years ago
Read 2 more answers
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