Immediate help ASAP whats the value of f(8)

Immediate Help ASAP Whats The Value Of F(8)

Answers

Answer 1

Answer:

[tex] \large \boxed{f(8) = 27}[/tex]

Step-by-step explanation:

Goal

Find f(8)

Given

Equation

[tex]f(x) = \frac{1}{2} {x}^{2} - ( \frac{1}{4} x + 3)[/tex]

Step 1

Substitute x = 8 in the equation and replace f(x) with f(8).

[tex]f(8) = \frac{1}{2} {(8)}^{2} - ( \frac{1}{4} (8) + 3)[/tex]

Step 2

Evaluate the value of f(8).

[tex]f(8) = \frac{1}{2} (64) - ( \frac{8}{4} + 3) \\ f(8) = 32 - ( \frac{2}{1} + 3) \\ f(8) = 32 - (2 + 3) \\ f(8) = 32 - (5) \longrightarrow 32 - 5 \\ f(8) = 27[/tex]

Hence, the value of f(8) is 27.


Related Questions

please help 20 points !!!! right answers please

Answers

Answer:

0.6 inch

Step-by-step explanation:

The volume of a sphere is calculated through the equation,

                           V = 4πr³/3

Which means that the radius is calculated by the equation,

                                (3V/4π)^(1/3) = r

Substituting,

           Sphere A,       (3x30/4π)^(1/3) = r = 1.927 in

           Sphere B,        (3x10/4π)^(1/3) = r = 1.336 in

When we subtract the radius, we get an answer of 0.59 inch. Therefore, the answer to this item is approximately 0.6 inch.

x²(2 - 7x) (-x+2)
Expand the following exercise

Answers

Answer:

Step-by-step explanation:

Use FOIL method

(2 - 7x)(-x + 2) = 2*(-x) + 2*2 + (-7x)*(-x) + (-7x)*2

                     = -2x + 4 + 7x² - 14x    {Combine like terms}

                   =  7x² - 14x - 2x + 4

                   = 7x² - 16x + 4

x²(2-7x)(-x + 2)= x² (7x² - 16x + 4)

                      = x²*7x² - 16x * x² + 4x²

                      [tex]7x^{2+2} -16x^{1+2} + 4x^{2}\\\\= 7x^{4} - 16x^{3} + 4x^{2}[/tex]

show step by step......​

Answers

Answer:

Step-by-step explanation:

Amount paid for first 100 watches = (65% of 80) *100

                                                        [tex]=\frac{65}{100}*80*100\\\\= 65*80\\= 5200[/tex]

Amount paid for next 50 watches = (55% of 80) * 50

                                                        [tex]= \frac{55}{100}*80*50\\\\= 55 * 8 * 5\\\\= 2200[/tex]

Remaining watches = 280 -(100+ 55)

                                 = 280 - 155 = 125

Amount paid for 125 watches = (45% of 80) *125

                                                  [tex]= \frac{45}{100}*80*125\\\\= 45 * 20 * 5\\\\= 4500[/tex]

Amount received by the watch maker = 5200 + 2200 + 4500

                                                               = £ 11900

Help Please , :))))))
Suppose f(x) = x2 and K(x) = 1/9x^2 . Which statement best compares the graph
of K(x) with the graph of f(x)?

Answers

Answer:

D

Step-by-step explanation:

since it is not in a parentheses with x that means it only affects the y axis, resulting in a vertical compression by a factor of 9

plz, mark me brainliest ;)

What are the steps to solve 5x+7+3x-4=?

Answers

Answer:

x= -3 / 8

Step-by-step explanation:

5x+7+3x-4=0

Sum 5x and 3x

8x+7-4=0

Subtract 7-4

8x+3=0

Move the constant to the other side and change his symbol with his opposite

8x=-3

8 is multiplying x, the opposite of multiplying is dividing, so it divide the -3 (under it)

x= -3 / 8

Answer:
8x + 3

Explanation:
5x + 3x = 8x
7 + -4 = 3

what unit for the capacity of a can of cola

Answers

Answer:

Recently, some 355 ml cans which are similar to North American cans are increasingly available, but are limited mostly to Coca-Cola and Dr Pepper, and beer cans are available in 500 ml.

Step-by-step explanation:

I hope that helps! -ibuki

Milliliters (ml)

Hope this helps!

Maybe brainliest?

I am dilating a line AB. A ( 4, 6) and B ( -10, 8). Scale factor is 2. what are the new points?

Answers

Answer:4,6 will be 8,12. -10, 8 will be -20, 16

Step-by-step explanation:

hi hi help math please ill give brainliest too the person whom gets it right :))))))))))))​

Answers

Answer:

4/1

Step-by-step explanation:

The slope of the line is y/x or rise/run. The line increases in height (y) by 4, while it only travels (x) 1. The line travels 4y in the time it takes to travel 1x. 4/1 (or just 4)

Are the following equations parallel, perpendicular, or neither?
help me

Answers

Answer:

Neither

because parallel equations often have the same exact slop but different y- intercept and nor is it perpendicular because slop must be flipped over 1 and negative so its not evident there.

Hope it helps:))

Step-by-step explanation:

neither, the slopes are not opposite reciprocals from each other

How far is the portion of her route from H to A? Round to the nearest whole number. Explain. PLS HELP ME I NEED IT BY TONIGHT

Answers

Answer:

2089

Step-by-step explanation:

Select the correct answer.

Look at the graph below.

Which of the following statements are true, based on the graph?

A. The number of hours depends on the number of boxes manufactured.

B. The number of boxes manufactured depends on the number of hours.

C. The number of pens depends on the number of boxes manufactured.

D. The number of pens depend on the number of hours.

Answers

Answer:

B. The number of boxes manufactured depends on the number of hours.

Step-by-step explanation:

The graph shows that as more time passes, more boxes are being manufactured. Therefore, the number of boxes relies on the number of hours.

Hope this helps :)

PLZ HELP PLZ HELP WHATS THE ANSWER


Seven times the first number plus six times the second number equals 31.


- Three times the first number minus ten times the second number is 29.

WHAT ARE THE TWO NUMBERS

Answers

For the first equation it should be 1 and 4 because 7(1)+6(4) would simplify to 7+24 which equals 31.

Then for the second equation, well... there’s multiple answers:

First would be 3 and -2 because 3(3)-10(-2) simplifies to 9+20=29.

Another one would be 23 and 4 because 3(23)-10(4) simplifies to 69-40=29.

Hopefully this helps :D

The first number will be [tex]\frac{11}{2}[/tex] and the second number will be [tex]-\frac{5}{4}[/tex].

Let the first number be x and the second number be y.

According to the question,

Since seven times the first number plus six times the second number equals 31. So,

[tex]7x+6y=31.......(1)[/tex]

Similarly,Three times the first number minus ten times the second number is 29.So,

[tex]3x-10y=29.......(2)[/tex]

Multiplying equation (1) by 3 and equation (2) by 7, we get

[tex]21x+18y=93[/tex]

[tex]21x-70y=203[/tex]

Now subtracting both the equations we get,

[tex]88y=-110[/tex]

[tex]y=-\dfrac{110}{88}[/tex]

[tex]y=-\dfrac{5}{4}[/tex]

putting the value of x in equation (1) we get,

[tex]7x+6\times-\dfrac{5}{4} =31[/tex]

[tex]7x-\dfrac{15}{2}=31\\[/tex]

[tex]7x=31+\dfrac{15}{2}[/tex]

[tex]7x=\dfrac{77}{2}[/tex]

[tex]x=\dfrac{11}{2}[/tex]

Hence the first number is [tex]\frac{11}{2}[/tex] and the second number is [tex]-\frac{5}{4}[/tex].

For more details on solving linear equation in two variables follow the link:

https://brainly.com/question/10270150

PLS HELP WILL GIVE BRAINLIEST!
if the diameter of a circle changes from 8 cm to 4 cm, how will the circumfrence change?
A.) multiplies by 1/2
B.) multiplies by 2
C.) increases by 6
D.) decreases by 6

Answers

The answer would be A) multiplies by 1/2

Help me pleaseeeeeeeeeeeeewe

Answers

Answer:

no its x = - 4

Step-by-step explanation:


Match the description to the graph:
help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help help pls help. I will mark you as Brainly if you help me, also I will also very thank to u.

Answers

Answer:

1.)B 2.)C 3.)D

Step-by-step explanation:

sanaakantulong please give me brainlist

#carry on school

Answer:

The first distance is b. The second distance is c. And the last distance is d.

Step-by-step explanation:

For the first one it is b because she does not stop walking from one place to the other and same with d. But c is different because she did not get to her destination and ran back home so she did not complete the trip.

5(a-6) in expanded form?

Answers

Answer:

5a - 30

Step-by-step explanation:

Answer:

5a - 30

Step-by-step explanation:

Distributive property: a(b + c) = a*b + a*c

5(a - 6)= a * 5 - 6*5

          = 5a - 30

Help me with this one!

Answers

Answer:

It’s A

Step-by-step explanation:

Cuz it’s just the numbers are replaced in different places but when u multiply u get the same ans ig

If I was asked to think of a number and multiply it by 2, I could write this algebraically as 2x.
Write the following algebraically using x as your unknown.

“I think of a number, multiply it by 2, subtract 3 and multiply the result by 4”

Answers

Answer:

8x - 12

Step-by-step explanation:

Let the number be x

multiply by 2

= x * 2 = 2x

Subtract 3 ;

2x-3

Multiply result by 4

=

4(2x -3) = 8x-12

Write the linear equation in slope-Intercept form passing through the point with the glven slope. 1. (0, 3): slope = -2
2. (-5,-3); slope = -3/5
3. (-8,6); slope 1/4 Write the linear equation in slope-intercept form that passes through the given points.
4. (1,3) and (-3,-5)
5. (1,4) and (6.-1)
6. (-12, 14) and (6,-1)​

Answers

Answer:

1)y=-2x+3

2)Y=-3/5x-6

3)y=1/4x+8

4)M=2

5)y=5x-1

6)M=-5/6

Step-by-step explanation:

6s + 3 = - 27 s=___ help

Answers

3=-27s-6s
3=-33s divide both sides by 3
s=-11

Answer:

[tex]6s + 3 = - 27 \\ 6s = - 27 - 3 \\ = - 30 \\ s = \frac{ - 30}{6} \\ s = - 5[/tex]

b = -4g + 52
Hi can u help me thanks

Answers

Answer:

54wy35syrdhtrd

Step-by-step explanation:

oy86t4s2r4ssuc78t87y8ma769798bowss668768

This is to help me study for a math exam. Anyone that takes advantage of the points will be reported. ​Thank you!​

Answers

Answer:

2) (see image below)

3) x = 8  

   side(s) = 74

4) x = 10

   EF = DE = 67

   base = 31

Step-by-step explanation:

For No. 2, if you draw out two triangles with the corresponding angles, you can make it a lot easier. See the image below:

For No. 3, it is given that it's an equilateral triangle, meaning all sides and angles are congruent. So:

12x – 22 = 10x – 6 = 7x + 18

Instead of using all three at once, you can use any two. I'll be using:

12x – 22 = 10x – 6

2x = 16

x = 8

Plugging x in, we can get all the sides, because this is an equilateral triangle:

12x – 22

12(8) – 22

96 – 22

74

For No. 4, it is given that the triangle is an isosceles triangle where DE ≅ EF, so:

8x – 13 = 5x + 17

3x = 30

x = 10

Plugging in x for one of the congruent sides and the base, you can get your needed side length values:

8x – 13

8(10) – 13

80 – 13

67

x + 21

10 + 21

31

PLZZ ANSWER FAST!! (WITH EXPLANATION)Mrs. Evans took a poll of which students in her class have a dog. If 24 students (4/5 of her entire class) have a dog, then how many total students are in Mrs. Evans' class?

Answers

So if it is 4/5, think of 1/5. 20% is 1/5. 40% is 2/5. 60% is 3/5. 80% is 4/5 so 24 divided by 80% is 30 students Total. Hope this helps!

A toy store sells accessories to go with the latest action figure. The store projects that it will sell a certain number of accessories for every box of a dozen action figures it orders. Let d represent one box of a dozen action figures.

Use the table to write an expression to represent the actual number of each accessory sold per box of action figures.

Accessory Turbo JET Pack X-Ray Vision Glasses Invisible SHIELD
Word Description Six times the number of boxes plus seven Five less than two times the number of boxes One more than ten times the number of boxes

Answers

The expression for the turbo jet pack is 6d+7, the equation for the x-ray vision glasses is 2d-5, and the equation for the invisible shield is 10d+1.

How to write an expression?

The steps to write an expression are:

Identify the variables or factors involved.Write the factors by relating them correctly using symbols such as +, -, x, etc.

What is the expression for the turbojet back?

The expression is 6d (six times the boxes) + 7 (plus seven).

What is the expression for the x-ray vision glasses?

The expression is 2d - 5 (two times the number of boxes minus five.

What is the expression for the invisible shield?

The expression is 10d + 1 (ten times the number of boxes plus one).

Learn more about x ray in: https://brainly.com/question/2833441

PLEASE HELP ME Please!!!

Answers

Answer:

8m would be the answer to your question

Answer:

Depending on the expression you are looking for,

8 times M could be an answer.

8xM

Product is the example of multiplication.

~Hope this helps~

if you spin the spinner 40 times, how many 4'

Answers

Answer:

10

Step-by-step explanation:

Answer:

Your prediction would be eight 4's

Step-by-step explanation: I just solved it!

please help me on this will give you brainliest!!

Answers

Answer:

bc= 6

Step-by-step explanation:

since the triangles are similar, the sides are in a ratio

xz/ac = 20/4 (5:1)

yx/ba = 15/3 (5:1)

yz/bc = 5:1 = 30/6

The answer would be ?=6 because 15/3=5 20/4=5 so 30/5=6

Hope this helps

Have a great day/night

HELP PLEASE!! WILL GIVE BRAINLIEST!!!

Answers

Answer:1/2

Step-by-step explanation:

2y 1x

Answer-    -1/2

Detailed Explanation-

The slope is going down 1 and going over 2, so the slope is -1/2

Que numero es mayor que -5/4

Answers

Answer:

4 is greater than -5

Step-by-step explanation:

positive are greater than negative

Alex is y years old. His sister Bella is 4 years older than him. Carla is double Alex's age. The sum total of their ages is 32 form and solve an equation to work out the ages of the three children

Answers

Answer:

I dont understand what this question is trying to say, but you should just use a calculator.

Step-by-step explanation:

Sorry!

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