Addition and Subtraction of Rational
Numbers - Question 8
8
k fueleducation"
8
9
|
5
12
+=
3
12
Reduce the answer to lowest terms.
-2
-1
8
-1
12
12

Answer:

4.7 * 6.8 = 31.96

Step-by-step explanation:

Answer:  Slope = 0.667/2.000 = 0.333

 x-intercept = -15/1 = -15.00000

Step-by-step explanation: y tells us how far up the line goes

x tells us how far along

m is the Slope or Gradient i.e. how steep the line is

b is the Y-intercept i.e. where the line crosses the Y axis

The X and Y intercepts and the Slope are called the line properties. We shall now graph the line  x-3y+15  = 0 and calculate its properties

Notice that when x = 0 the value of y is 5/1 so this line "cuts" the y axis at y= 5.00000

 y-intercept = 15/3  =  5

When y = 0 the value of x is -15/1 Our line therefore "cuts" the x axis at x=-15.00000

 x-intercept = -15/1  = -15.00000

Slope is defined as the change in y divided by the change in x. We note that for x=0, the value of y is 5.000 and for x=2.000, the value of y is 5.667. So, for a change of 2.000 in x (The change in x is sometimes referred to as "RUN") we get a change of 5.667 - 5.000 = 0.667 in y. (The change in y is sometimes referred to as "RISE" and the Slope is m = RISE / RUN)

   Slope     =  0.667/2.000 =  0.333

 Slope = 0.667/2.000 = 0.333

 x-intercept = -15/1 = -15.00000

This is solution.

Click on the photo to view full solution.

Answer:

no

yes

Step-by-step explanation:

y < 5x - 4

1 < 5(1) - 4

1 < 1

This is not a true statement. 1 cannot be less than 1 itself so the answer is no.

7x - 4 < 28

7(0) - 4 < 28

-4 < 28

This is a true statement so the answer is yes.

Step-by-step explanation:

Here is Slope-Intercept Form for a line: y=mx+b

m is the slope

b is the y intercept

The y intercept is basically the point on the y axis where the line touches.

I will do #3 for you.

Let's first look for the y intercept. We can see that the line touches the y axis at -4, so that's it.

Let's put it into our equation, plugging in -4 for b. This is what we have so far: y=mx-4

To complete this equation, we still need to find the slope, m.

To find it, look at the point where the y intercept is, and count how many units you need to go up or down the y axis, and then right or left the x axis to get to another point on the line. The slope is equal to the change in y ÷ the change in x.

So we see that there's another point on (-3, -2), so let's try to get there from the y intercept.

We need to move two units up and 3 to the left.

In terms of y, we went up +2, and in terms of x, we went down -3

So our slope is 2/-3 or -2/3.

Now that we have our slope (m) and y intercept (b), we can plug it into out Slope-Intercept Equation, plugging in -2/3 for m:

y=-2/3x-4.

We don't need to find x or y. This is our answer for 3. Using the same method, you should be able to find the equations for the rest of the graphs. Good luck.

Answer:

106182

Step-by-step explanation:

Answer:

it will take 6 hours, or at least im pretty sure it will

Step-by-step explanation:

Answer:

it would be C

Step-by-step explanation:

hope it helps

Answer:

C

Step-by-step explanation:

You can see that 14 turned into 28, which means multiplication.

Answer:

10.86

Step-by-step explanation:

once youve plotted the points a and b, use Pythagorean theorem to determin the distance between the two

again, im not the greatest at explanations so thats all i can say kfjskdfjd

Answer:

40x

Step-by-step explanation:

If you multiply 5x 8 times, or add 5x +5x+5x+5x+5x+5x+5x+5x, you will get 40x.

Answer:

A

Step-by-step explanation:

Answer: D

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

Answer:

d) x = 4/3

Step-by-step explanation:

Given equation,

→ -x + (3/7) = 2x - (25/7)

Now the value of x will be,

→ -x + (3/7) = 2x - (25/7)

→ -x - 2x = -(25/7) - (3/7)

→ -3x = -28/7

→ -3x = -4

→ x = -4/-3

→ [ x = 4/3 ]

Hence, the value of x is 4/3.

Answer:

a = 14°

b = 36°

Step-by-step explanation:

4b - 12 + 48 = 180 (supplementary)

Rearrange

4b = 180 - 48 + 12

4b = 144

b = 36°

4a - 8 + 4b - 12 = 180 (supplementary)

sub b = 36 into equation

4a - 8 + 144 - 12 = 180

Rearrange

4a = 180 - 144 + 12 + 8

4a = 56

a = 14°

Your going to keep the first fraction then change the sign to multiplatation and flip the last fraction. -77/9 (mixed number into fraction) x -7/11

539/99 and then you can simplify that into 5 4/9

Answer:

ik you have a answer already I just really needed points so please don't repeat the answer

Answer:

kgr5igv%6ovdr

Step-by-step explanation:

g7id24ohswegbj see ohsd

Answer: f (-2) 5

Your welcome

A function is a relation between two variables where one variable is the set of inputs that gives the other variables as output.

The value of the function at x = -2 is 5.

The domain of the function = 5.

The range of the function = -2.

A function is a relation between a set of inputs called domains and it has one output called the range.

Example:

f(x) = x + 2

At x = 2,

f(2) = 2 + 2 = 4

Domain = 2

Range = 4

We have,

f(x) = x² + 4x + 9

We need to find the value of the function at x = -2.

Substitute x = -2 in f(x).

f (-2) = (-2)² + 4x(-2) + 9

f (-2) = 4 - 8 + 9

f (-2) = 5

Thus the value of the function at x = -2 is 5.

Learn more about functions here:

https://brainly.com/question/26885907

#SPJ2

Answer:

$325

Step-by-step explanation:

Mae Ling earns a weekly salary of $325 plus a 6.5% commission on sales at a gift shop. How much would she make in a work week if she sold $4,800 worth of merchandise?

Answer:

4

Step-by-step explanation:

15x3=45

89-45=44

11x4=44

Answer:

Spent 4 hours shoveling

Step-by-step explanation:

15 x 3 = 45

89 - 45 = 44

44 / 11 = 4

I hope this helps you :)

Answer:

The answer is $4025

Step-by-step explanation:

In this problem we are given his annual salary. meaning per year. to find how much he makes in a month, we must divide by how many months there are in a year.

there are 12 months in a year.

so, 48300/12= 4025

hope this helps!

Answer:

$4,025 is his monthly salary.

Step-by-step explanation:

Annual salary means yearly. Since there are 12 months in a year, you would just take his annual (yearly) salary and divide it by 12 in order to get his monthly salary. Thus it would be:

[tex]\frac{48300}{12} =4025[/tex]

Answer:

39,580

Step-by-step explanation:

It means to multiply 9895 4 times.

Hope this helps.

Answer:

a: 130

b: 130

c: 50

Step-by-step explanation:

a straight line has an angle of 180, so those two angles are going to add up to 180. and opposite angles are equivalent

Answer:

A. is 130

B. is 130

C. is 50

hope it helped!

p.s it would be cool if you gave me brainliest

Answer:

  x = 11

Step-by-step explanation:

If we assume that points A, B, and C are on the same line with B between A and C, then we have ...

  AB +BC = AC

  (4x +34) +(6x +6) = 150 . . . . use the given expressions

  10x +40 = 150 . . . . . . . . . . . . collect terms

  10x = 110 . . . . . . . . . . . . . . . .  subtract 40; next, divide by 10

  x = 11

Answer:

4

Step-by-step explanation:

65 + 12x=113

12x=113-65

12×=48

×=48/12

x=4

Answer

Step-by-step explanation:

Its A

HI um yeaaaa so do u still need help and um this is taylor megan is at school and aaahhhhh umm yea so................... bye bye

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Answer:

OD.5.23 hope this helps

Answer:

34 +x = 42

x = 42- 34

= 8

is the right answer

Answer:

8

For this problem, subtract 34 from 42.

42 - 34 = 8.

You get the number 8.

It will be your answer. Hope this helps!