If f(x) = 4x - 12, what is f(2)?
O A. -4
O'B. 4
O c. -20
D. 8
Helpppp plzzz

Answer:

Answer B and C

Step-by-step explanation:

Answer:Caleb earns $24 per hour more than Hassan

Step-by-step explanation:

819.40/34=24.08 rounded to 24

Hassan makes 21.5 per hour

Answer:

Caleb earns $2.6 per hour more than Hassan.

Step-by-step explanation:

eg:

Hassan: $21.5 = 1hr

Caleb: $819.40 = 34hr

819.40 ÷ 34 = $24.1 (earned by Caleb per hour)

$24.1 - $21.5 = $2.6 (more than Hassan)

Answer:

14.4

Step-by-step explanation:

Divide 18 miles by 5 hours to tell us how many miles she can do in 1 hour.

Multiply the answer by 4 to tell us how many miles in 4 hours.

(18/5) * 4 = 14.4 Miles

Answer:

14.4 miles

Step-by-step explanation:

To answer this question you first need to find out what Amanda can jog in 1 hour. I can do this by dividing by 5, since the question tells me that she jogs 18 miles in 5 hours. So, I do 18 divided by 5, which gives me 3.6. I now know that in one hour, she can jog 3.6 miles.

The next step is to multiply by 4, because I want to know what she can do in 4 hours. So, I do 3.6 multiplied by 4, which gives me 14.4. I now know she can jog 14.4 miles in 4 hours, which is my final answer,

Answer:

It might be 42.80

Step-by-step explanation:

5.35x0.8

The cost of 0.8 pounds of cheddar cheese is $4.28.

The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.

Given that, Jasper buys 0.8 pounds of cheddar cheese.

The cheese costs $5.35 per pound

So, cost of 0.8 pounds of cheddar cheese is

0.8×5.35

= $4.28

Therefore, the cost of 0.8 pounds of cheddar cheese is $4.28.

To learn more about the unitary method visit:

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Answer:

3/8

Step-by-step explanation:

There are 8 options, are 3 of them are ones. This means there is a 3 in 8, or 3/8 chance of spinning a one.

9514 1404 393

Answer:

  9.0×10³

Step-by-step explanation:

The best way to indicate the desired number of significant digits is the use of scientific notation. That notation allows the number of significant digits to be specified exactly, even if there are a number of trailing zeros.

  8982 rounded to 2 significant digits is 9.0×10³

Answer:

9514 1404 393

Answer:

Q1.  2 - 5/ 8 - 0 = -3/8

Q2.  1- (-1)/6-2 = 2/4 simplified as 1/2

Q3.  (-5)- (-2)/ (-1)- (-3) = -3/2

Use a ruler to help you graph a line whose slope is 1/3. Label this line “a”

*Answer- 1/3 is being shown for rise/run (Rise over Run, 1 being rise and 3 being run). this means that you go up one and right 3.

Step-by-step explanation:

y2-y1 *over* x2- x1. Also if you can simplify the end fraction do it but if not then leav it as it is. This is the equation that I used for the first 3 problems. Also I didnt quit understand the 1st word problem sorry! I hope this helps :v

Answer:

1/17 hope that helps

Step-by-step explanation:

Answer:

The answer is 0.05

Step-by-step explanation:

1/2= 0.5

17/2= 8.5

0.5 divided by 8.5 = 0.05

1/2 divided by 1/2 = 0.05

Answer: 14 marbles

Step-by-step explanation: well nico had 54 marbles and 40% is with charlie so just subtract 54-40 and you'll get your answer

Nico had 140 marbles to begin with. After giving away 56, he would have 84 marbles left.

Any relationship that is always in the same ratio and quantity which vary directly with each other is called the proportional.

Now, we need to use some basic math.

Here, 56 marbles represent 40% of Nico's collection, then we can set up a proportion to find out how many marbles Nico had to begin with.

First, we'll set up the proportion:

56 / x = 40 / 100

Here, x represents the total number of marbles that Nico had before giving away 56.

Then, we get;

56 100 = 40 x

Multiplying both sides, we get:

5600 = 40x

x = 140

So, Nico had 140 marbles to begin with. After giving away 56, he would have 84 marbles left.

Learn more about the proportion visit:

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question a is 80

question b 20 (is what I could find but not completely sure)

Answer:

yes i think the questions are statistical

Step-by-step explanation:

this is because a statistical question is a question that can be answered by collecting data that vary. For example, “How old am I?” is not a statistical question, but “How old are the students in my school?” is a statistical question.

Step-by-step explanation:

If you are goin for which one isn't prime, then it would be four.

If you are going for which one isnt a factor, there is more then one

If you are going for something else, i have no idea.

Answer:

1) 39

2)48

Hope this helps :)

Answer:

Step-by-step explanation:

Let the tenth digit is x and units digit is y.

We have the following equations:

Simplify the second equation:

Solve by substitution:

Find y:

The number is 27

Here the equations are if the digits be a and b

3(a+b)=10a+b

Equate both

And

The number is 27

Answer:To write the number 0.0000149 in scientific notation, we need to express it as a number between 1 and 10 multiplied by a power of 10.

First, we move the decimal point to the right until there is only one non-zero digit to the left of the decimal point, which gives us:

1.49 × 10^-5

Since we moved the decimal point 5 places to the right, the exponent of 10 is negative 5.

Therefore, the scientific notation of 0.0000149 is 1.49 × 10^-5.

Step-by-step explanation:

Answer:

1.49×10^-5

Step-by-step explanation:

0.0000149=1.49×10^-5

it's to the power of -5 because it's a decimal number not a whole number

Answer:

The density of a substance is the mass of the substance per unit of volume. 

Step-by-step explanation:

Answer:

1/6 chance or 16.667% chance

Step-by-step explanation:

a fair number cube has six sides so if you roll that 30 times that's 180 sides and the probability of rolling a 2 out of a single dice is 1/6 and since 180 * 1/6 is equal to 30 that is 30 out of 180 which is 1/6

Answer:

180

Step-by-step explanation:

Answer: x=3

Step-by-step explanation: 10>x+7 : subtract 7 from both sides 10-7+3 and 7-7=0 so 3>x so x=3

Answer: x = 3 (hope you like it)

Explanation:

The data from the stem-and-leaf plot is:

10,

24,25,26,

30,30,32,33,

40,45,46

Add up those values

10+24+25+26+30+30+32+33+40+45+46 = 341

Then divide over n = 11 which is the sample size.

341/11 = 31 is the arithmetic mean.

Answer:

341/11 = 31 is the arithmetic mean.

Step-by-step explanation:

Answer:

Let's solve your equation step-by-step.

−4= x /20 −5

Step 1: Simplify both sides of the equation.

−4= x/ 20 −5

−4= 1 /20 x+−5

−4= 1 /20 x−5

Step 2: Flip the equation.

1/ 20 x−5=−4

Step 3: Add 5 to both sides.

1 /20 x−5+5=−4+5

1 /20 x=1

Step 4: Multiply both sides by 20.

20*( 1 /20 x)=(20)*(1)

x=20

Answer:

x=20

Step-by-step explanation:

Answer: The figure that has exactly one line of symmetry is B. Pentagon.

Step-by-step explanation: A line of symmetry is a line that divides a figure into two congruent halves that are mirror images of each other. A figure can have zero, one, or more lines of symmetry depending on its shape and orientation. To find the lines of symmetry of a figure, we can use a paper folding method or a reflection test. A paper folding method involves folding the figure along a line and checking if the two halves match up exactly. A reflection test involves reflecting the figure over a line and checking if the image coincides with the original figure.

Using either method, we can see that:

A. Rhombus has two lines of symmetry: one diagonal and one vertical.

C. Rectangle has two lines of symmetry: one horizontal and one vertical.

D. Triangle has either zero or three lines of symmetry depending on the type of triangle. An equilateral triangle has three lines of symmetry: one vertical and two bisecting the angles. An isosceles triangle has one line of symmetry: the perpendicular bisector of the base. A scalene triangle has no lines of symmetry.

B. Pentagon has either zero or five lines of symmetry depending on the type of pentagon. A regular pentagon has five lines of symmetry: each passing through a vertex and the midpoint of the opposite side. An irregular pentagon has no lines of symmetry.

Therefore, the only figure that has exactly one line of symmetry is B. Pentagon, but only if it is an isosceles pentagon.

Hope this helps, and have a great day! =)

Answer:

16

Step-by-step explanation:

If you divide 3840 by 240 you end up with 16

Answer:

16 cups

Step-by-step explanation:

divide the total amount of millilitres by how many millilitres are in a cup

Answer:

this isnt math

Step-by-step explanation:

Answer: Surface Area = 2 x (5x2 + 3x2 + 5x3) = 62 centimeters

Surface area of a right rectangular prism = 2(lh + wh + lw)

Step 1: Label the Given-

Length (l) = 5cm,      Width (w) = 3cm,      Height (h) = 2cm

Step 2: Replace the given-

Surface Area = 2 x (5x2 + 3x2 + 5x3)

= 2 x (31)

Surface Area = 62 centimeters

Horus got his answer, by applying only what lays inside the parentheses. To get the right answer, Horus must multiply what they got by 2:

2 x (31) = 62 centimeters

Answer:

SA= 15+6+10+10+15+6 = 62

Step-by-step explanation:

take your top rectangle multiply length and width= 15

Take the one right below it take the 2cm, and multiply it with 3=6

after that one doe 3x5 again=15

Then, 3x2=6

And then 5x2=10

And then once more=10

Answer:

Step-by-step explanation:

The number of those line segments which have endpoints of different colors is 47.

What is permutation and combination?

A permutation is the number of different ways a set can be organized; order matters in permutations, but not in combinations.

We have:

There are 5 red, 4 green, and 3 blue points on a circle.

There are different colored endpoints on each line segment that starts at a red point and travels to either a green point or a blue point.

There are 5 red points and 7 segments from each of them, making a total of 35 segments.

There are different colored endpoints on each line segment that leaves at a green point and travels to either a red or blue point.

There are 4 green points and 8 segments from each, for a total of 32 segments.

There are different colored endpoints on each line segment that leaves at a blue point and travels to either a green point or a red point.

Each blue point has 9 segments, and there are a total of 5 blue points.

Add all the ways = 35 + 32+ 27

= 94 segments.

Number of segment = 94/2 = 47

Thus, the number of those line segments which have endpoints of different colors is 47.