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Roman55 [17]
3 years ago
7

. If we subtract 4a–7ab+3b+12 from 12a–9ab+5b–3,then the answer is:

Mathematics
2 answers:
Dominik [7]3 years ago
6 0

Answer:

8a-16ab+2b-15, i think

Anika [276]3 years ago
3 0

8a-2ab+2b-15 is the answer

Step-by-step explanation:

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Classify the number 2i.<br> A)real number<br> B) imaginary number<br> C)complex number
NikAS [45]

Answer:

complex number

Step-by-step explanation:

2i contains of a letter I which is known to be an imaginary number

4 0
3 years ago
A bag contains 3 red marbles, 4 blue, 9 yellow, and 5 green. What is the probability of getting a yellow or a green?
galina1969 [7]

Answer:

2/3

Step-by-step explanation:

To find the probability, you first have to add up the total number of marbles in the bag.

3+4+9+5=21

Next you find the probability of getting a yellow:

9/21

Then you find the probability of getting a green:

5/21

And since the problem says "yellow <em>or</em> green" we will add the two together

9/21 + 5/21 = 14/21 = 2/3

5 0
3 years ago
Under a dilation, triangle XYZ where X(4, 7), Y(-3, 8), and Z(-2, -1) becomes triangle X’Y’Z’ where X’(12, 21), Y’(-9, 24), and
-BARSIC- [3]
It is 3, the points are all 3 times greater
7 0
3 years ago
What is the area of the shaded region ?​
aleksklad [387]
25 this is it I don’t know if u understand it because I don’t lol

7 0
3 years ago
If the area of a circle is 121pie square units, what is the diameter
velikii [3]
Since you are given the area, we can solve for radius with this equation:
A_c = \pi r^2
r = \sqrt{ \frac{A_c}{ \pi } } = \sqrt{ \frac{121 \pi }{ \pi } } = \sqrt{121} = 11

The radius is 11, so the diameter must be 2 times that, which is 22. With the correct units, the answer is 22 units²
4 0
3 years ago
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