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Free_Kalibri [48]
3 years ago
5

. Evaluate ƒ(x) = 3x + 8 for x = 1. 3 5 11 –11

Mathematics
1 answer:
rodikova [14]3 years ago
8 0

Answer:

11

Step-by-step explanation:

Replace the variable xx with −1-1 in the expression.

f(−1)=−3⋅−1+8f(-1)=-3⋅-1+8

Simplify the result.

Tap for fewer steps...

Multiply −3-3 by −1-1.

f(−1)=3+8f(-1)=3+8

Add 33 and 88.

f(−1)=11f(-1)=11

The final answer is 1111.

=11

I want brainless pleased

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Help please (question is kinda easy and its timed so i need help asap)
AveGali [126]

Option 1: y = 5x+5 is the correct answer

Step-by-step explanation:

We can put the values of x in each option one by one and then compare the output to find the best option

So,

<u>For y = 5x+5:</u>

Putting x=1,2,3,4,5...

y = 5(0)+5 = 0+5 = 5\\y = 5(1) +5 = 5+5 = 10\\y = 5(2) + 5 = 10+5 = 15\\y = 5(3) + 5 = 15+5 = 20

The values of x in the function are producing the output values of y, which means that the function for values given in the table is defined by: y= 5x+5

Hence,

Option 1: y = 5x+5 is the correct answer

Keywords: Functions, variables

Learn more about functions at:

  • brainly.com/question/12896802
  • brainly.com/question/12973601

#LearnwithBrainly

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3 years ago
PLEASE HELP ASAP I WILL GIVE BRAINIEST AND LIKE IF CORRECT!!! This is my 3 time reposting.
Anuta_ua [19.1K]
Slope: 1/40

tell me if i’m right
6 0
3 years ago
Omg someone pleaseeee help me!!! 30 points!!!
Crank

add the volume of a cone, V=1/3 pi times radius squared times h. The volume of the cone is V=355. Then you add the volume of the cone to the volume of the cylinder. the formula for the volume of a cylinder is V= pi times radius squared times h. So the volume of the cylinder will be V=923. if you add those two together the overall volume is 1,278.

8 0
3 years ago
In a study of the stability of IQ scores, a large group of individuals is tested once at age 18 and again at age 35. The followi
Naddika [18.5K]

Answer:

112

Step-by-step explanation:

Given that in a study of the stability of IQ scores, a large group of individuals is tested once at age 18 and again at age 35.

Age 18: average score = 100, SD = 15

Age 35: average score = 100, SD = 15, r = 0.80

Let us obtain regression equation of y on x.

Let y be the scores at age 35 and x at age 18

Slope = r(s_y/s_x) = 0.8(\frac{15}{15} )=0.80

The line passes through (100,100) being average of x and y

Hence regression line would be

y-100=0.8(x-100)\\y = 0.8x+20

a) Here given that x =115

Hence y=0.80(115)+20\\=112

the average score at age 35 for all the individuals who scored 115 at age 18, would be 112.

b) Prediction also would be the same 112.

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3 years ago
Peter uses unit cubes to build a figure in the shape of the letter X what is the fewest unit cubes that Peter can use to build t
lozanna [386]
I am not sure I am right but I think it depends on the size of the X.

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