If f(3) = 15 and f(5) = 45, which of the following could be f(x)?Can anyone explain this one for me?

Answers

Answer 1

Answer: Just saying, but the rule COULD be:

f(x) = 15(x-2)

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Which expression is equivalent to 10 - 810−810, minus, 8?

Which multiplication has a negative answer?A) (-1)(-1)
B) (-1)(-1)(-1)(-1)
C) (-1)(-1)(-1)(-1)(-1)
D) (-1)(-1)(-1)(0)

Answers

The correct answer is D

i'm pretty sure it's C

-1 times -1 becomes positive, and then times -1 again, it's negative, and times it again, it's positive, and THEN one more time (lol) it's -1.

What is an equivalent expression for 9(3+8x)

please hurry

Answers

9(3+8x)
The answer is 27+72x

Answer:

72x+27

Step-by-step explanation:

Use the distributive property to multiply 9 by 3+8x.

27+72x

Please give me the Brainliest answer!!!!!!!

Two fifths of the square of a number j algebraic exxpression

Answers

Answer:

$(2)/(5)j^(2)$

Step-by-step explanation:

We have a number represented by the letter $j$ .

The question asks for two fifths $((2)/(5) )$ of the square of this number.

To square a number means to multiply a number by itself. The result will be the number raised to the power of 2. Applying this to $j$ , we get $j*j$ $=j^2$
Two fifths of this term ( $j^2$ ) is $(2)/(5)j^(2)$ . This is our final answer.

Hope this helps!

PLEASE HELP 5. Find the distance of the line segment joining the two points: (2,0) (0,-2)

Answers

Answer:

I would think 2 for my answer

100 students take a course pass/fail. If they pass they get 4 points towards their GPA, if they fail they get 0. If 90 students pass, what is the mean and standard deviation (to 1 decimal) of the points earned?Mean: ________a0

Standard Deviation:________ a1

Answers

Formulas
Mean = total sum of points / # of data
[Stantard deviation] ^ 2 = {Sum of [every data - mean]^2 } / [number of data - 1]

Procedure:

Mean = total sum of points / # of data

Total sum of points = point of pass + point of fail

points of pass = 90*4 = 360
point of fail = 10*0 = 0
Total sum of points = 360

Number of data = 100

Mean = 360/100 = 3.6

[Stantard deviation] ^ 2 = {Sum of [every data - mean]^2 } / [number of data - 1]

[Sum of every data - mean]^2 = 90*[4 -3.6]^2 + 10* [0 - 3.6]^2 = 14.4 + 129.6 = 144

[Stantard deviation] ^ 2 = [144]/[100-1] =144/99

Standar deviation = √(144/99) = 1.206

Picture, 20 points and will gibe brainliest..

Answers

Answer:

D : reflection over the y-axis followed by a translation to the right one unit

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