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Veronika [31]
3 years ago
10

What is the answer to 21=(x+3)2

Mathematics
1 answer:
IceJOKER [234]3 years ago
3 0
First, distribute 2 to the (x+3) to get:
21 = 2x+6
subtract 6 from both sides to get:
15 = 2x
Finally, we divide both sides by 2 to simplify x to:
x = 7.5 (OR) x = 7  \frac{1}{2}
(Just so you know, if you pick a brainliest answer, both you and the person who got the brainliest answer get some points.
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<img src="https://tex.z-dn.net/?f=%28%20%5Cfrac%7B8%7D%7B11%7D%29%20%7B%7D%5E%7B7%20-%202%20%5Ctimes%203%20-%201%7D%20" id="TexF
Darya [45]

Answer:

1

Step-by-step explanation:

(\frac{8}{11})^{7- 2*3 - 1} = (\frac{8}{11})^{7- 6 - 1}\\\\=(\frac{8}{11})^{7- 7}\\\\=(\frac{8}{11})^{0}\\\\=1

6 0
3 years ago
What is one quality of rotation
Sunny_sXe [5.5K]

Answer:

Quality rotation is the act of a joint moving through a range of motion in a way that is efficient, controlled and repeatable.

8 0
2 years ago
Read 2 more answers
Help me please please help me
Lisa [10]

9514 1404 393

Answer:

  1. C
  2. E
  3. B

Step-by-step explanation:

The idea of a "production possibilities curve" is that there is a fixed relationship between possible production of one product and possible production of another. This relationship is presumed to exist because resources used to produce one product are then unavailable to produce the other product.

The graph of the curve generally has increased production in the direction away from the origin. So, points between the curve and the origin represent production choices that do not utilize all available resources of the kind that give rise to the curve. That is, points "inside" the curve represent under-utilization of resources.

1. Point C represents under-utilization.

__

2. Points "outside" the curve are unattainable, because the curve represents production using all available resources.

  Point E is unattainable.

__

3. The assumptions behind the curve are that there must be a tradeoff between production of one item and production of another that uses the same resources. That is, increasing production of one item will necessarily decrease production of the other, representing a cost of the increased production of the first item. We call this cost an "opportunity cost", because it represents production opportunity lost with respect to the second item.

  Choice B describes this situation.

_____

<em>Additional comment</em>

The very idea of a "production possibilities curve" represents the sort of simplification that is often used in the study of economics. The real world is much messier, and these curves are always dynamic. They are affected by the regulatory environment, resource quality, technology, product quality, and availability of alternate or competing products, among other things. The very existence of such a curve precludes the possibility of "win-win" situations, which we know are generally available if they are sought after.

6 0
2 years ago
If we know that 5 cups of flour is used to make 20 biscuits, figure out how many biscuits are made with 15 cups of flour
aleksley [76]

Answer:

100

Step-by-step explanation:

5×4=20

5×15=100

therefore 15 cups of flour can make 100 biscuits

6 0
2 years ago
A baker sells a dozen for &amp;3.99 the cost of to make three donuts is $0.45 how much is the total profit on 5 dozen donuts?
Ber [7]
19.95 is the correct answer I believe
5 0
3 years ago
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