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BaLLatris [955]
3 years ago
15

WILL MAKE BRAINLIEST!!!

Mathematics
2 answers:
Verdich [7]3 years ago
4 0

Answer:

1 - D

2 - C

3 - B

Step-by-step explanation:

To be a function an x value must only have one corresponding y value

Savatey [412]3 years ago
4 0

Answer:

1) graph d

2) table c

3) coordinate points b

Step-by-step explanation:

1) the vertical line test is the  best way to insure whether or not a graph is a function. All the other graphs pasS the vertical line test but graph d does not, hence graph d is not a function.

2) to determine whether the table is a function or not you need to look at the "x" values. If there is a repeated number in the x  values, the table does not represent a function. Table c is the only one that represents a function.

3) coordinate points b are the only ones without a repetition of x coordinate points. Hope this helps!

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Sherrie invested some money at 6% interest. Sherrie also invested $249 more than 4 times that amount at 12%. How much is investe
Anon25 [30]

Answer:

  • 6%: $1776
  • 12%: $7353

Step-by-step explanation:

Let x represent the amount invested at 6%. Then the amount invested at 12% is 4x+249. Sherrie's interest is ...

  0.06x +0.12(4x +249) = 988.92

  0.54x + 29.88 = 988.92

  0.54x = 959.04

  x = 959.04/0.54 = 1776

  4x+249 = 7353

__

Sherrie invested $1776 at 6% and $7353 at 12%.

4 0
3 years ago
Please help don’t understand
JulijaS [17]
The angles opposite equal sides are also equal. The sum of angles in a triangle is 180. So 2x + 27 + 2x + 27 + 3x + 28 = 180.

7x + 82 = 180
7x = 98
x = 14

Now plug x into each angle to find their measures.
6 0
3 years ago
Rationalize the denominators:<br> 4/√x+2
puteri [66]
\dfrac{4}{\sqrt{x}+2}=\dfrac{4}{\sqrt{x}+2}\cdot\dfrac{\sqrt{x}-2}{\sqrt{x}-2}=\dfrac{4(\sqrt{x}-2)}{(\sqrt{x})^2-2^2}=\dfrac{4\sqrt{x}-8}{x-4}\\\\Use:(a+b)(a-b)=a^2-b^2
6 0
3 years ago
Read 2 more answers
Parallel to y=2÷3x+6<br> Passes through (6,7)
erma4kov [3.2K]

Answer:

Step-by-step explanation:

Parallel to y=2÷3x+6

Passes through (6,7)

slope is (2/3)

Solve for when y is 7 and x is 6.

take out the + 6 at the end because it doesnt change the slope. replace with b. (y=mx+b)

replace y and x.

7 = (2/3)(6)+b

solve for b and then put it back into the equatio and make 6 and 7 into x and y again.

7 0
3 years ago
The weight of Darrin's phone is 3.405 ounces. What is 3.405 written in expanded form
Verizon [17]
Its 3.000+400+5 that's your answer
7 0
3 years ago
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