Solve for f(2)

f(x)=2x-4

f(2)=?

Answers

Answer 1

Answer:

0

Step-by-step explanation:

Plug 2 in for x

[tex]2(2) -4[/tex]

Simplify

[tex]4-4[/tex]

[tex]=0[/tex]


Related Questions

PLZ HELP i rlly need it i am not good a t algebra

Evaluate the following expressions when x = 5. Show your work.
Hint: Remember to use BEDMAS

My question: 2x+3

Answers

Answer:

13

Step-by-step explanation:

substitute the five into the equation. :)

Jimmy has 6 computers and 7 printers to choose from. How many possible computer- printer combinations are there to make?

O 42
O 13​

Answers

Answer:

13

Step-by-step explanation:

Computers=6

Printers=7

Now,

=6+7

=13

The correct answer is 13

Which of the following sequences of transformations maps KLMN onto ABCD

Answers

Answer:

The answer is neither.

Step-by-step explanation:

Just did the test on Khan.

I will give brainleist pls

Answers

Answer:

C

Step-by-step explanation:

We can immediatly rule out A and B because the Quotient is bigger than the Divisor.

We can then rule out D because 2,016 does not round to 2,200.

The answer is C. 2,184 can round to 2200 and the Divisor is bigger than the quotient.

Answer:

C

Step-by-step explanation:

This is quite simple as we can find the answer out on the first hint itself. The first hint says the divisor, 2 number in the equation or number you are dividing by, can be rounded to 50, which means it is in the range of 45-54. We can see the only divisor in that range is C. To go with the other hints, though, the dividend, first number, can be rounded to 2,200 which means it is in the range of 2,151-2,250. All of them pass that, so on to the next hint. It says the quotient, number you get as answer, is smaller than the divisor, which we found is in the range of 45-54. Answer choices A and B do not follow this as the divisors of their equation are obviously smaller than the quotient, so we can conclude C to be our answer

What is the slope, m, of the line through (-7, -2) and (-6, 7)?

Answers

Answer:

Slope = 9

Step-by-step explanation:

(-7 , -2) ;  x₁ = -7  and  y₁ = -2

(-6 , 7) ;  x₂ = -6  and y₂ = 7

Slope = [tex]\frac{y_{2}-y_{1}}{x_{2}-x_{1}}[/tex]

          [tex]=\frac{7-[-2]}{-6-[-7]}\\\\=\frac{7+2}{-6+7}\\\\=\frac{9}{1}\\\\= 9[/tex]

A survey of 64 informed voters in Kenya revealed the following information:

45 believe that Voting is a waste of time

49 believe that they have been abducted by space aliens

42 believe both of these things

REQUIRED

i). How many believe neither of these things?

ii). How many believe Voting is a waste of time but don't believe that they have been

abducted by space aliens?​

Answers

Answer:

i) 12 believe neither of these things.

ii) 3 believe voting is a waste of time but don't believe that they have been abducted by space aliens.

Step-by-step explanation:

I'm going to solve these question treating these events as Venn sets.

I am going to say that:

Event A: Voting is a waste of time.

Event B: They have been abducated by space aliens.

45 believe that Voting is a waste of time

This means that [tex]A = 45[/tex]

49 believe that they have been abducted by space aliens

This means that [tex]B = 49[/tex]

42 believe both of these things

This means that [tex]A \cap B = 42[/tex]

i). How many believe neither of these things?

Total of 64.

At least one is:

[tex]A \cup B = A + B - A \cap B[/tex]

With the values we have

[tex]A \cup B = 45 + 49 - 42 = 52[/tex]

None:

[tex]64 - 52 = 12[/tex]

12 believe neither of these things.

ii). How many believe Voting is a waste of time but don't believe that they have been abducted by space aliens?​

This is:

[tex]A - B = A - (A \cap B) = 45 - 42 = 3[/tex]

3 believe voting is a waste of time but don't believe that they have been abducted by space aliens.

16. Simplify the expression.
(6 + 47) + (4 + 61)
-10 - 10
10 + 10i
201
10 - 10

Answers

The answer should be 10 + 10i. Hope that helps.

2. P337. 23. A large box contains 10,000 ball bearings. A random sample of 120 is chosen. The sample mean diameter is 10 mm, and the standard deviation is 0.24 mm. True or false: (a) A 95% con dence interval for the mean diameter of the 120 bearings in the sample is 1 ???? (1:96)(0:24)= p 120. (b) A 95% con dence interval for the mean diameter of the 10,000 bearings in the sample is 1 ???? (1:96)(0:24)= p 120. (c) A 95% con dence interval for the mean diameter of the 10,000 bearings in the sample is 1 ???? (1:96)(0:24)= p 10; 000.

Answers

Answer:

B is True

A, C. D are false

Step-by-step explanation:

Given :

Sample size, n = 120

Mean diameter, m = 10

Standard deviation, s = 0.24

Confidence level, Zcritical ; Z0.05/2 = Z0.025 = 1.96

The confidence interval represents how the true mean value compares to a set of values around the mean computed from a set of sample drawn from the population.

The population here is N = 10000

To obtain

Confidence interval (C. I) :

Mean ± margin of error

Margin of Error = Zcritical * s/sqrt(n)

Margin of Error = 1.96 * 0.24/sqrt(120)

Confidence interval for the 10,000 ball bearing :

10 ± 1.96 * (0.24) / sqrt(120)

Hence. The confidence interval defined as :

10 ± 1.96 * (0.24) / sqrt(120) is the 95% confidence interval for the mean diameter of the 10,000 bearings in the box.

what is 3/7 divided by 2/5?

Answers

Answer:

1 1/14

you have to multiply by the reciprocal of the second fraction

An ant population began with 30 ants. From this point, the population
continuously increased by 4% each hour. Based on this model, how many
hours will it take the population to reach 100 ants?

Answers

Answer:about 5.3

Step-by-step explanation:

2x + 8 = -4 solve for c
Show work please

Answers

Answer: x=-6

Step-by-step explanation:

Given

2x + 8 = -4

Subtract 8 on both sides

2x + 8 - 8 = -4 - 8

2x = -12

Divide 2 on both sides

2x / 2 = -12 / 2

x = -6

NOTE: I assume the questions "solve for c" actually means "solve for x"

Hope this helps!! :)

Please let me know if you have any questions

2a^2 + 7 + 5b^3
when a = 2 and b= 3

Answers

Answer:

150

Step-by-step explanation:

2(2^2)+7+5(3^3)

2(4)+7+5(27)

8 + 7 + 135= 150

can someone help pls?

Answers

try googling it thats what I would do. I think it would be 1/6 tho

Write an equation of a line (SLOPE INTERCEPT FORM) that goes through points A(9, 2) and B(- 1, 4) please help!

Answers

Answer:

the answer to the problem is -1/4

A number line going from negative 60 to negative 50. An open circle is at negative 54. Everything to the right of the circle is shaded.
Which inequality has the solution set shown on the graph?
-54n < 1080
-54n > 1080
594 > -11n
594 < -11n

Answers

Answer

C

Step-by-step explanation:

Answer:

C - 594 > -11n

Step-by-step explanation:

Just got it right on edge! Have a good day! :))

Can you help me with this work please?

Answers

9514 1404 393

Answer:

  OL = 7

Step-by-step explanation:

Triangle JKL is isosceles and N is the midpoint of JL, so NL = NJ = 14.

Triangle LMN is isosceles and O is the midpoint of NL, so NL = 2(OL).

  OL = NL/2 = 14/2

  OL = 7

__

There is no WY.

Help if you can please

Answers

Answer:

10 coconut cupcakes

Step-by-step explanation: so, here is what we do since there is 8 cupcakes sold and 4 of them are coconut cupcakes we divide. this is hard to explain but we know that 8 divided by 4 is 2 so we have to multiply to 20 so like 2 times 10 which gives us 20. then we use the answer that we got from multiplying which is 10 as our answer if that makes sense.

What is the value of y?
Please help!

Answers

I wanna say 90 because it looks like a right angle

Explain,why is having no free time a bad thing?​

Answers

Answer:

because it helps you feel happieness and your not feeling it

Step-by-step explanation:

Because if your constantly doing something with no breaks it can cause stress and lack of sleep.

HELP PLEASEEEE!!! SOMEONE HELP ME FOR ONCE, NO ONE IS ANSWERING MY QUESTIONS AND IM SO FREAKING STRESSED OUT. OH MY GOD SOMEONE PLS IM BEGGING YOU EXPLAIN YOUR ANSWER STEP BY STEP FOR ONCE

In 1985 an antique automobile club had 23,000 members. Since then its membership has grown at an average rate of 5% per year. Assuming this trend continues, how many members will there be in 2020? Round to the nearest thousand.
a) 112,000 members
b) 78,000 members
c) 151,000 members
d) 127,000 members

Answers

Answer:

I have come to the conclusion that it is A. 112,000

Answer:

d) 127,000 members

Step-by-step explanation:

In this problem we have an exponential function of the form

where  a is the initial value

b is the base

The base is equal to  b=1+r

r is the average rate

In this problem we have  a=23,000 members

r=5%=5/100=0.05

b=1+0.05=1.05

substitute

x ----> is the number of years since 1985

How many members will there be in 2020?

x=2020-1985=35 years

substitute in the function

Round to the nearest thousand

Subtract 2/3 and 1/4. ​

Answers

Answer is 5/12 there is the work hope this helps

Answer:

5/12

Step-by-step explanation:

Find common denominators. Note that what you multiply to the denominator, you must multiply to the numerator as well. The common denominator is 12:

(2/3) * (4/4) = (8/12)

(1/4) * (3/3) = (3/12)

Subtract:

(8/12) - (3/12) = (8 - 3)/12 = 5/12

5/12 is your answer.

~


What is the circumference of the circle with a radius of 3.22 Round to the nearest tenth.

Answers

To calculate the circumference multiply the radius by 2 to get the diameter. Multiply the result by π, or 3.14 for an estimation.

3.22x 2 = 6.44

6.44x π= 20.23185668911827

rounded to the nearest ten: 20.2

WILL MARK BRAINLIEST
Solve for y

110
75
100
55

Answers

Answer:

Answer for Y is 100....

Answer:

100

sorry if my answer is wrong

Help! Quick! Find the area of the composite figure

Answers

Answer:

60m

Step-by-step explanation:

To find the area of the triangle you multiply the base by height and divide by two, but we don’t know the base of the triangle!

Luckily, the bottom of the triangle is a rectangle. Rectangles are symmetrical, and the other side of the rectangle is 8.

So, the base of the triangle is 8.

Now let’s find the area of the triangle:

8 x 5 = 40

40/2 = 20

20 is the area of the triangle

Now, we must find the area of the rectangle!

The formula for rectangle area is just width x length:

8 x 5 = 40

Add them together:

40 + 20 = 60

Therefore, the area is 60m.

Eric buys a coffee table price d at $100. If the sales taxis 5%, what wil lbe the total cost including tax?

Answers

Answer:

$105.00

Step-by-step explanation:

100 x 1.05 = $105.00

Answer:

with included tax : $150

triangle: solve for x

Answers

Answer:

6 root two

Step-by-step explanation:

geometric mean for leg t.

24*3=x2

x2=72

x=root(72)

6 root two

if my answer helps please mark as brainliest.

What’s the volume of 9 cm 6 cm 4 cm

Answers

Answer:

bro tell me the shape

Step-by-step explanation:

joseph left the house at 11:17 A.M and returned at 12:45 P.M how many minutes was joseph gone from the house

Answers

1 hour & 28 minutes.

Joseph was gone from the house for 1 hour & 28 minutes.

Find the mean of the set of data.
3, 3, 8, 3, 8, 3, 8, 8, 1,3
The mean is ?? HELP WILL MARK BRAINLIEST

Answers

Answer:

Step-by-step explanation:

8

Step-by-step explanation:

48 because your adding them all up

If each quadrilateral below is rectangle, find the missing measures #5

Answers

Is there a picture? I just need the picture, in order to answer it.
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