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Minchanka [31]
4 years ago
15

Expand and simplify (2x+3)(x-3)

Mathematics
2 answers:
8090 [49]4 years ago
6 0
2x^2-3x+3x-9
Answer: 2x^2-9
timofeeve [1]4 years ago
5 0
2x^2-6x+3x-9

FINAL ANSWER:
2x^2-3x-9
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Sixteen is seven plus three times a number find the number
Mama L [17]

Answer: x=3

Step-by-step explanation:

16 = 7 + 3x

9 = 3x

3 = x

:0

4 0
3 years ago
henry is a painter. he uses the function h(x)=50x - 20 to determine the amount he charges for a painting that took him x hours t
belka [17]

Answer:

x amount of money determines y number of hours to make a painting of that cost.

Step-by-step explanation:

The inverse of a function, is the function or rule formed by reflecting the line over y=x. This means essentially that all (x,y) values from the original function switch to (y,x).

(x,y)--->(y,x) in the new function.

If the function determines the amount (y) he makes in x hours. The inverse determines how many y hours it takes to earn x amount of money.

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3 years ago
Which beat explains what determines whether a number is irrational?
lisov135 [29]

Answer:

The correct answer is Choice D. An irrational number is a number that can be written as a decimal but never terminates or repeats.

A good example of an irrational number is the number pi. We know that it begins as 3.14. However, that is only the beginning. It goes on forever without repeating or terminating.

Step-by-step explanation:

4 0
3 years ago
If the diameter of a circle is 9 cm, then its circumference is 56.52 cm.<br> True or False
Georgia [21]

Answer: true

Step-by-step explanation: first you divide its circumference by pi, which you then get 17.990. Round it to 18. Then use the diameter (18) and divide it by 2. You get 9.

6 0
3 years ago
How do you write an equation in slope intercept when given the slope and a point?
Vlad1618 [11]

To write an equation in slope intercept form given the slope and a point, plug into point-slope form.

(y - y1) = m(x - x1)

In this equation, m is your slope and (x1, y1) is your point. If you follow this and solve for y, you will get your equation in slope intercept form.

8 0
3 years ago
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