Evaluate f(8): SHOW ALL YOUR WORK
f(x) = x2 – 4

Answers

Answer 1

Answer:

60

Step-by-step explanation:

substitute x=8

f(8)=(8)2-4=60

Answer 2

Answer:

60

Step-by-step explanation:

f(x) = x² - 4

f(8) = (8)² - 4 = 64 - 4 = 60


Related Questions

Evaluate the following expression for m = 4.
4m + 2
please provide a step by step explanation (:

Answers

Answer:

6

Step-by-step explanation:

[tex]\sqrt{4}(4)[/tex] = [tex]\sqrt{16}[/tex]

[tex]\sqrt{16} =4[/tex]

[tex]4 + 2 = 6[/tex]

Answer:

C. 6

Step-by-step explanation:

[tex]\sqrt{4m}+2=\sqrt{4*4}+2=\sqrt{4^{2}} +2=4+2=6[/tex]

Use the distributive property to expand the following expression.
-2 (2.1x + 3y - 1.8)

Answers

Answer:

- 4.2x - 6y + 3.6

Step-by-step explanation:

- 2(2.1x + 3y - 1.8)

- 4.2x - 6y + 3.6

Answer:

-4.2x+6y-2.16

Step-by-step explanation:

multiply everything by -2

A square room has a perimeter of 40 feet. What is the area of the room?

Answers

Answer:

100 ft²

Step-by-step explanation:

There are 4 congruent sides in a square

Perimeter = 4x

40 = 4x

x = 10

Area = base x height or length x width

Since all sides are the same, 10 is base and height

10x10 = 100

units = ft²

Answer = 100 ft²

If my answer is incorrect, pls correct me!

If you like my answer and explanation, mark me as brainliest!

-Chetan K

Answer:

100 feet (I forget area units so there might be an exponent or something)

Step-by-step explanation:

Basically, the formula for perimeter is the sum of all sides. With area, you are just multiplying length times width. With a square, all of the sides are equal, and there are four sides. 40/4=10. So, each side is 10 feet. With that, you can multiply 10*10 and get 100!

BC=
Round your answer to the nearest hundredth

Answers

The answer would be 8.34 because since the unknown is apart of the tangent, tan(50)= x/7 then solve for x

What is the midpoint of AB when A (-2, 5) and B (4, -5)?

Answers

Answer:

Answer attached

Step-by-step explanation:

Midpoint of AB = (1,0)

Let's check

midpoint of AB

(-2+4/2,5-5/2)(2/2,0/2)(1,0)

How many degrees are in a third of a full turn?

Answers

Answer:

120 degrees

Step-by-step explanation:

There are 120 degrees in a third of a full turn. To determine this, you need to start with a full turn which is 360 degrees.

Answer:

120⁰ is the answer. Hope it helps have a nice day also ;)

A toy company is packaging its toy to be shipped. Each small toy is placed inside a cube- shaped box with side lengths of 1/8 in. These smaller boxes are then placed into a larger box with dimensions of 12in. X 4 1/2in. X 3 1/2 in.

Answers

Answer:

1512

189 in³

Step-by-step explanation:

Here is the complete question

A toy company is packaging its toys to be shipped. Each small toy is placed inside a cube-shaped box with side lengths of 1/2 in. These smaller boxes are then placed into a larger box with dimensions of 12 in. × 4 1/2 in. × 3 1/2 in.

a. What is the greatest number of small toy boxes that can be packed into the larger box for shipping?

b. Use the number of small toy boxes that can be shipped in the larger box to help determine the volume of the shipping box

A. greatest number of small toy boxes that can be packed into the larger box for shipping = volume of larger box / volume of smaller box

volume of larger box = length x width x height = 12 in. × 4 1/2 in. × 3 1/2 in = 189 in³

volume of smaller box = volume of a cube = side length³ = [tex]\frac{1}{2}[/tex]³ = 1/8 in³

189 ÷[tex]\frac{1}{8}[/tex] = 189 x = 1512

b. 1/8 x 1512 = 189 in^3

In a group of 101 students 40 are juniors, 50 are female, and 22 are female juniors. Find the probability that a student picked from this group at random is either a junior or female.
a) 90/101
b) 22/101
c) 68/101
d) 40/101 ​

Answers

I think it might be d

Answer:

I would say A. as a best guess but the question is odd it does not add up to 101 students it adds up to 101 plus all of them are female juniors so they would be picked every time it would be 101/101

Can someone please help me with math.

Answers

The answer is going to be A. as the age increases the amount of tc watched increases as well

Answer:

A

Step-by-step explanation:

from age 5 to age 15 the number of hourse watched goes up and so on

Find the surface area of the prism.

Answers

Answer:

792 feet

Step-by-step explanation:

based on my calculations this is the answers.

792... I think thats the answer beacause that's what I got sorry if incorrect. Have a great day.

1. 2(x+3)
2. 5(2x-4)
3. 4(2x-4)
4. 6(x-4y)
what are the answers for these

Answers

Answer:

1.) 2x + 6

2.) 10x - 20

3.) 8x - 16

4.) 6x - 24y

Hope this helps!

PLEASE MARK BRAINLIEST IF CORRECT

I believe that you would need to distribute the numbers outside of the parentheses (2,5,4,6) into the parentheses.

2(x+3)=

2x+6

5(2x-4)=

10x-20

4(2x-4)=

8x-16

6(x-4y)=

6x-24y

Two tugboats that are 118 ft apart pull a barge, as shown. If the length of one cable is 206 and the length of
the other is 227, find the angle formed by the two cables.

Answers

Answer:

26.903

Step-by-step explanation:

a = 77 m

b = 72 m

c = Distance between the tugboats = 35 m

Find x if (3⋅5)⁴ ⋅ (2⋅3)⁵ ⋅ (2⋅5)⁷ = 2ˣ ⋅ 3ʸ ⋅ 5ᶻ

Answers

x = 12
y = 9
z = 11
good luck :))

which of the following are solutions to the equation below ​

Answers

Answer:

B & F

Step-by-step explanation:

(±√14 - 4)/3 =>

(√14 - 4)/3 or (-√14-4)/3

60 out of 1240 fruit trees are poisonous. What percent of trees are poisoned? Round to the nearest tenth.

Answers

Answer:

4.8

Step-by-step explanation:

Answer:

4.8%

Step-by-step explanation:

to do this create a ratio and cross-multiply

[tex]\frac{60}{1240} = \frac{x}{100}[/tex]

now that we have a our ratio, where x = the percent of poisonous trees, we can cross-multiply and solve to find its value

cross-multiplying leaves you with

[tex]1240x=6000[/tex]

now solve for x, dividing both sides of your equation by 1240

once you've divided, you should be left with

[tex]4.8[/tex]

since this number is already out of 100, it is equivalent to your percent, so slap a percent sign on the end and you're done!

Help, Perhaps? this one has me kinda stumped, i know its prob easy, im just not to big brain rn lol :Sweat_emoji:

Answers

Answer:

Step-by-step explanation:

g

Answer: G

Step-by-step explanation: hope this helps!

What is the area of the triangle shown?

Answers

If we multiply the two numbers on the diagonal line, 10x24 we get 240 so the answer is 240 for area

Answer:

Hello! answer: 120

Step-by-step explanation:

Formula for triangle area:

base × height ÷ 2

24 × 10 = 240 240 ÷ 2 = 120 therefore the area is 120 Hope that helps!

A jar contains 7 red marbles, 9 blue marbles and 3 green marbles. Christopher wins if he picks a blue marble and Janet wins if she picks a red marble. Is this game fair? Why or why not?

No, the game is not fair because Christopher has a higher probability of winning than Janet.

Yes, the game is fair because Christopher and Janet do not have an equal probability of winning.

No, the game is not fair because Janet has a higher probability of winning than Christopher.

Yes, the game is fair because Christopher and Janet have an equal probability of winning.

Answers

Answer:

No, the game is not fair because Christopher has a higher probability of winning than Janet.

Step-by-step explanation:

christopher's probability: 9/19

janet probability: 7/19

what is the value of x in 40,000 = 10x g?

Answers

Answer:

x=4000

Step-by-step explanation:

Answer:

4,000 = x

Step-by-step explanation:

40,000 = 10x

=> Divide 10 to each side of "="

40,000/10 = x

4,000 = x

Hope this helps!

Please help me, i am in need of a smart person to help with my homework

Answers

Answer: The Answer is A

Step-by-step explanation:

Jessica’s bill last month was $77.00. Use the equation you wrote in Exercise 3 to find the number of text messages Jessica sent last month. Show your work. 19 POINTZZZZ

Answers

You didn’t provide the equation.

Determine the value of the indicated term.

a1 = -4, d=4

Determine the 15th term

Answers

Answer:

52

Step-by-step explanation:

The general arithmetic sequence formula for this case is

a(n) = -4 + d(n - 1).

Thus, a(15) = -4 + 4(14) = 52

Answer:

The 15th term = 52

Step-by-step explanation:

a₁ = -4

d = 4

n = 15

a₁₅ = The value of the 15th term, (this is what we have to find out)

We know that formula of an arithmetic series is:

aₙ = a₁ + d(n - 1)

Now we can substitute the given values in:

a₁₅ = -4 + 4(15 - 1)

a₁₅ = -4 + 4(14)

a₁₅ = -4 + 56

a₁₅ = 52

So the 15th term = 52

Hope this helps!

Plz hurry find the surface area and volume to the nearest whole number

Answers

Answer:

87.96 or 88 - surface area

62.83 or 63 - volume

Step-by-step explanation:

Answer:

Surface area: 89 yd

Volume = 63 yd

Step-by-step explanation:

Surface area:

A=2πrh+2πr^2

=2·π·2·5+2·π·2^2

=87.96459

Volume:

V=πr2h

=π·22·5

=62.83185


14 In a book, 98% of the pages contain text, diagrams on both. If 88% of the pages
contain text and 32% contain diagrams, what percentage contain

a.neither text nor diagrams
b. only diagrams
c.only text
d.both text and diagrams?​

Answers

Answer:

2%

10%

66%

22%

Step-by-step explanation:

For the first one we just need to find the compliment of the union (.98) which is .02

Union formula:

A∪B=A+B-A∩B

We will let T= text and D= diagram

we know that

.98=.88+.32-T∩D

Solve and find that T∩D= .22

Only diagram: .32-.22= .1

Only text: .88-.22= .66

Text and diagrams is the intersection we found earlier or .22

2
Which point on this number line best represents 10?
point A
point B
point C point D

Answers

I would say c because

Answer:

probably 5 because thats half of 10 i guess

Step-by-step explanation:

Simplify this expression to standard form: -3(2x -4) - 2

Answers

-6x + 10
good luck :)

Answer:

−6x + 10

Step-by-step explanation:

- (−3) (2x) + (−3) (−4) + −2

-  −6x + 12 + −2

- (−6x) + (12 + −2)

= −6x + 10

1. Find the measure of arc ABC
please show ur work

Answers

Is there arc length or may be radius

Alonzo runs each lap in 6 minutes. He will run at most 30 minutes today. What are the possible numbers of laps he will run today?

Use n for the number of laps he will run today.
Write your answer as an inequality solved for n.

Answers

Answer:

N= 5

Step-by-step explanation:

30 ÷ 6 = n

n = 5

30 ÷ 6 = 5

Hope this helps!!

1. Which of the angles below are supplementary?

Answers

Answer:

<3 and <4

Step-by-step explanation:

Simplify 12x6 y7 18 x3y5.

Answers

Answer:

216x^9y^12

Step-by-step explanation:

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