Given the function f(x) = 4x evaluate

f(-2)

Answers

Answer 1

Answer:

the answer =-8

Step-by-step explanation:

you subsitute -2 for x so its 4(-2) which is -8

Answer 2

Answer:

Given value x=-2, just substitute it to [tex]4^{x}[/tex]

= [tex]4^{-2}[/tex]   (this uses the property [tex]a^{-m}=\frac{1}{a^{m} }[/tex])

= This results in:

[tex]\frac{1}{4^{2} } = \frac{1}{16 }[/tex]


Related Questions

how do you get the slope​

Answers

Answer:

See below

Step-by-step explanation:

The way to find the slope is to find how many blocks/number it went up and to the side. The number of blocks it went up on the y-axis, in this case, is 3 and it went along the x-axis once. In order to actually find the slope, you need to put the y over the x. So, 3/1 is equal to three, so the slope of this line is 3

Answer:

y2-y1/x2-x1

Step-by-step explanation:

For instance, say you have points (3,2) and (4,6) on a line.

x1 = 3, y1 = 2, x2 = 4, y2 = 6

6 - 2/4 - 3

4/1

slope = 1

Jim has 3/5 feet of rope. He divides it into 3 sections. How long is each section? (Simplest form)

Answers

Answer:

1/5

Step-by-step explanation:

If x is direct proportional to y cube and x=32 when y=2
1. Find the value of x when y=6
2. Calculate the value of y when x=108

Answers

Answer:

1x=864,

2y=3

Step-by-step explanation:

y=6,x=?

if x is directly proportional to y^3 &if (when x=32, y is=2) we can understand that x=4y^3

1,x=4y^3

x=4(6^3)

x=4(216)

x=864

2,x=4y^3

108=4y^3

108/4=4y^3/4

27=y^3

√27=y

y=3

i think it is easy to understand,but if the answers are not clear you can ask me &i hope it helps you

Please help with this question!!

The distance, d, that a certain car is from Math City after h hours, can be determined by the equation d=45h. The distance that a second car is from Math City can be determined by the equation d=25h+80. After how many hours will the two cars be the same distance from the Math City?

Answers

Answer:

4 hours

Step-by-step explanation:

First car distance

d = 45h

Second car distance

d = 25h + 80

After how many hours will the two cars be the same distance from the Math City?

Equate both car's distances

45h = 25h + 80

Collect like terms

45h - 25h = 80

20h = 80

Divide both sides by 20

h = 80 / 20

= 4

h = 4 hours

The two cars will be at the same distance from the Math City in 4 hours

Calculate the density of benzene if 0.10L has a mass of 36.4g.

Answers

Answer:

[tex]d=0.364\ g/cm^3[/tex]

Step-by-step explanation:

It is given that,

Mass of benzene, m = 0.1 L

Mass, m = 36.4 g

We know that, 1 L = 1000 cm³

0.1 L = 100 cm³

The density of an object is equal to its mass divided by its volume. So,

[tex]\rho=\dfrac{m}{V}\\\\=\dfrac{36.4\ g}{100\ cm^3}\\\\=0.364\ g/cm^3[/tex]

So, the density of benzene is [tex]0.364\ g/cm^3[/tex].

Figure MNOP is reflected about the x-axis to obtain figure M′N′O′P′:

A coordinate grid is shown from negative 4 to 0 to 4 on both x- and y-axes. A polygon MNOP has M at ordered pair 1, 3, N at ordered pair 2, 1, O at ordered pair 3, 1 P at ordered pair 4 and 2. A polygon M prime N prime O prime P prime has M prime at 1, negative 3, N prime at ordered pair 2, negative 1, O prime at ordered pair 3, negative 1, and P prime at ordered pair 4, negative 2.
Which statement best describes the relationship between the two figures? (1 point)

Figure MNOP is bigger than figure M′N′O′P′.
The measure of angle O is equal to the measure of angle M′.
The measure of angle O is equal to the measure of angle P′.
Figure MNOP is similar to figure M′N′O′P′.

Answers

Figure MNOP is similar to figure M'N'O'P'.

Answer:

Figure MNOP is similar to figure M'N'O'P'.

Step-by-step explanation:

hope this helped :)

Consider the figure below where l2 intersects l1 and m∠2=90°.

YOOOO HELP ME PLEASE ASAP LOL ILL MARK YOU AS THE BRAINLEST


Which of the following statements are correct? Select all that apply.

∠1 and ∠4 are adjacent angles.
∠1 and ∠2 are complementary angles.
∠3 and ∠4 are adjacent angles and complementary angles.
∠5 is a vertical angle to the combination of ∠3 and ∠2.
∠1 and ∠3 are vertical angles.
∠4 and ∠5 are adjacent angles, supplementary angles, and form a linear pair.
There is at least one angle bisector in the above graph.

Answers

Answer:

Layla bu la 520 and glue 729

Step-by-step explanation:

Help needed ASAP will give you BRAINLIEST and 5 stars

Answers

Answer:

y-x

Step-by-step explanation:

Answer:

Y=-x

Step-by-step explanation:

Because any other ones have stuff they should.

the first to answer correctly gets brainliest​

Answers

Answer: 7.5

Step-by-step explanation:

Yeah 7.5 is correct!


Explanation:

Help help help ASAP I need help

Answers

Answer:

20

Step-by-step explanation:

Plug in 3 everywhere there is a y and solve.

(3)^2+2(3)+5

9+6+5

20

Jerome is paraphrasing a portion of White Fang to support his idea that the pup feels safer in the American Indian camp once he becomes familiar with his surroundings. Which is the best way to paraphrase supporting evidence from the text? White Fang thought the tepees were scary at the beginning, but he looked around one and felt better. White Fang is afraid of the tepees at first, so he investigates one cautiously. After sniffing and nibbling the canvas, he grabs a corner in his teeth and pulls hard enough to make it wobble. Once he sees that the tent will not hurt him, he is not afraid anymore. “After a time, he left Kiche’s side and crawled cautiously toward the wall of the nearest tepee . . . [H]e smelled the strange fabric, saturated with the man-smell. He closed on the canvas with his teeth and gave a gentle tug. Nothing happened, though the adjacent portions of the tepee moved.” “He tugged still harder, and repeatedly, until the whole tepee was in motion. Then the sharp cry of a squaw inside sent him scampering back to Kiche. But after that he was afraid no more of the looming bulks of the tepees.”

Answers

Answer:

B

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

Can u space the answers pls nest time at least

What additional information can be used to prove ZDX=XYZ by SSS?
A) DX=YZ
B) DZ=YX
C) XZ=XY
D) XZ=ZD

Answers

Answer:

The answer is going to be A. DX = YZ

Step-by-step explanation:

TEST SCORE Alberto got thirty-five out of forty questions correct on his geography test. To determine the
percentage of the questions he got correct, multiply the quotient of thirty-five and forty by one hundred.
Write a numerical expression to describe the percentage of the questions that Alberto got correct on his
geography test.

Answers

35/40*100 :):):):)I hope this helps

35/40 ×100 is a numerical expression to describe the percentage of the questions that Alberto got correct on his geography test.

Given that, Alberto got thirty-five out of forty questions correct on his geography test.

We need to determine the

percentage of the questions he got correct, and multiply the quotient of thirty-five and forty by one hundred.

How to calculate the percentage?

The following formula is a common strategy to calculate a percentage:

Determine the total amount of what you want to find a percentage. Divide the number to determine the percentage. Multiply the value by 100.

Now, 35/40 ×100=87.5%

Therefore, 35/40 ×100 is a numerical expression to describe the percentage of the questions that Alberto got correct on his geography test.

To learn more about a percentage visit:

https://brainly.com/question/13450942.

#SPJ2

Can someone answer this question and make sure they show working out. Will reward brainliest to the best answer.

Answers

Answer:

8a²+8a+12b = 8a²+8a+12b

Step-by-step explanation:

first, expand the brackets

4a + 4a + 12a² + 8b + 4b - 4a²

then, collect like terms

8a + 8a² + 12b

then, rearrange

8a² + 8a + 12b

Question 28
A car travelled 566.48 kilometres on 63.59 litres of gasoline. Which is the closest to the
mumber of kilometres per litre the car travelled
36.000.00 kml
630.07 km 1
10.00 kn l
0.10 ​

Answers

Answer: 10.00 km/l

Step-by-step explanation:

From the question, we are informed that a car travelled 566.48 kilometres on 63.59 litres of gasoline. Based on this information, the number of kilometres per litre the car travelled will be:

= 566.48km/63.59litres

= 8.9kilometres/litres.

This is closest to 10.00 km/l

Which of the following values are solutions to the inequality −6≤1+3x?

Answers

Answer:

what are the options? there are many possible answers


Find the results of the given vector subtractions for u = <-8, 4> and V = <2,7>.

Answers

Answer:

see explanation

Step-by-step explanation:

- u - v

= - < - 8, 4 > - < 2, 7 >  ← multiply each component of u by - 1

= < 8, - 4 > - < 2, 7 > ← subtract corresponding elements

= < 8 - 2, - 4 - 7 >

= < 6, - 11 >

----------------------------------------------------------

u - v

= < - 8, 4 > - < 2, 7 > ← subtract corresponding elements

= < - 8 - 2, 4 - 7 >

= < 6, - 3 >

-----------------------------------------------------------

v- u

= < 2, 7 > - < - 8, 4 > ← subtract corresponding elements

= < 2 - (- 8), 7 - 4 >

= < 2 + 8, 7 - 4 >

= < 10, 3 >

         

Somebody help me please

Answers

yes i’m chi. yin gubu. hi hi hi hi hi hi hi hi hi

Please help the picture is above.

Answers

Answer:

11

Step-by-step explanation:

the square root of 129-8 will equal to 11

Answer:

y = 11

Step-by-step explanation:

You first have to insert the x value.

y equals the square root of 129 minus 8

Which would leave it to be the square root of 121 which is 11.

HELPPPPPP!!!!!! I NEED HELP OMGGG....

A jewelry artist is selling necklaces at an art fair. It costs $105 to rent a booth at the fair. The cost of materials for each necklace is $4.50. The artist is selling the necklaces at $12 each.
The inequality 12n > 105 + 4.50n represents the situation in which the artist makes a
profit.

A)Will the artist make profit if she sells 15 necklaces? Show how you know.

B) explain or show your reasoning

Answers

Answer:

They will break even... but im not 100% sure im correct

Step-by-step explanation:

Im not 100% sure but here is what i have...

based on the given inequality the new one would be 15n>105+4.50n,

First subtract the 4.50n from the right side of the inequlaity sign.

Now you should have 10.5n>105

second, plug in a random number to see if she will make money or not..

I used 10, so plug 10 in for "N".

it will look like this, 10.5(10)>105

now do the math and get, 105>105,

which brings me to the cunclution she breaks even..

Solve for x
Need answers please

Answers

Answer:

u add 30 by 12 and u get D

Step-by-step explanation:

i did this test LOL

Given m||n, find the value of x.
(8x-27) (7x-4)

Answers

Answer:

56ײ-221x+108

Step-by-step explanation:

find the slope of the line ​

Answers

it’s rise over run so 3/2

sam eats 1/4 of a pizza joe eats 1/2 of the remaining pizza. what part of the original pizza is left?

Answers

Answer:

1/4 of the pizza is left

If Sam eats 1/4 of the pizza, we must subtract 1/4 from 1.

1 - 1/4 = 3/4.

Now, Since Joe eats 1/2 of the pizza, we subtract 2/4, since 1/2 = 2/4.

3/14 - 2/4 = 1/4.

Answer = 1/4

What is the Slop?????Please give an actual answer. WILL ADD BRAINLIEST FOR BEST ANSWER!!!!!

Answers

Answer:

The Slope Is 2/3

Step-by-step explanation:

Hope This Helps!

Plz Mark Brainliest!

Answer:

The slope of a line is a measure of its steepness. Mathematically, slope is calculated as "rise over run" (change in y divided by change in x).

Step-by-step explanation:

HELP ME PLEASE! A representation of a linear equation in two variables is graphed below.
Which linear equation in two variables can be used to represent the line?
y=23 - 2
y = x +4
y=2 - 2
y= 2+2

Answers

Option C, y = 1/2 x -2 is the correct answer

what is -2x + 12 divided by 4

Answers

Answer:

x=4

Step-by-step explanation:

First set the equation equal to 4:

-2x +12=4

Subtract 12 from both sides:

-2x +12=4

      -12  -12

-2x=-8

Then divide each side by -2 to isolate the x:

-2x/-2=-8/-2

x=4

3. Evan works at McDonalds and works 15-20 hours each week. What is the domain and
range if he gets paid 8 dollars per hour?

Answers

Answer:

RANGE: 120 - 160

Step-by-step explanation:

15*8 = 120

20*8 = 160

RANGE: 120 - 160

PLEASE NEED HELP:(

Joseph borrowed a book from a library. The library charged a fixed rental for the book and a late fee for every day the book was overdue. The expression below shows the charges Joseph paid for the book when he returned it x days after the due date:

2 + 0.25x

What does the coefficient of the expression represent?

A:The fixed rental for the book
B:The total late fee for the book
C:The late fee per day for the book
D:The number of days the book was overdue

Answers

Answer:

C. The late fee per day for the book

Step-by-step explanation:

“ The library charged a fixed rental for the book and a late fee for every day the book was overdue.”

Answer:

C

Step-by-step explanation:

the problem says there is a late fee for every day the book is overdue, 'x' represents the days, so multiplying the two together filling in 'x' would give you the total late fee amount.

-5
-4
-3
-2
-1
0 1 2
3
4
u

Answers

Answer:

Step-by-step explanation:

Can you rephrase the question.

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