5 = -4y - 21

Solve for y

Answer:

1.429

Step-by-step explanation:

Answer:

(1,3)

Step-by-step explanation:

2x-2=4x-y-1

subtract 2x on both sides

-2=2x-y-1

add y on both sides

y-2=2x-1

add 2 on both sides

y=2x+1

now we can just kinda plug and check.

if you plug in 1, you get 3, so A

Answer:

28

Step-by-step explanation:

Answer:28

Step-by-step explanation:

Answer:

600

Step-by-step explanation:

I

need

more

points

Answer:

1 day ago

Step-by-step explanation:

If yesterday it had 100 and it doubles every day, it would have 200.

Answer:

C or d

Step-by-step explanation:

Answer:

THE ANSWER IS A Y=12x+0.75

Step-by-step explanation:

Answer:

4f+d (plug in the given values)

4(4)+8 (do the multiplication first because PEMDAS)

16+8 (add)

24

Step-by-step explanation:

Simplify (x3 +  3x2 + 5x – 4) –  (3x3 – 8x2 – 5x + 6)

The first thing I have to do is take that "minus" sign through the parentheses containing the second polynomial. Some students find it helpful to put a "1" in front of the parentheses, to help them keep track of the minus sign.

Here's what the subtraction looks like, when working horizontally:

(x3 + 3x2 + 5x – 4) – (3x3 – 8x2 – 5x + 6)

(x3 + 3x2 + 5x – 4) – 1(3x3 – 8x2 – 5x + 6)

(x3 + 3x2 + 5x – 4) – 1(3x3) – 1 (–8x2) – 1(–5x) – 1(6)

x3 + 3x2 + 5x – 4 – 3x3 + 8x2 + 5x – 6

x3 – 3x3 + 3x2 + 8x2 + 5x + 5x – 4 – 6

–2x3 + 11x2 + 10x –10

And here's what the subtraction looks like, when going vertically:

x

3

−(3x

3

​

+3x

2

−8x

2

​

+5x

−5x

​

−4

+6)

​

​

In the horizontal addition (above), you may have noticed that running the negative through the parentheses changed the sign on each and every term inside those parentheses. The shortcut when working vertically is to not bother writing in the subtaction sign or the parentheses; instead, write the second polynomial in the second row, and then just flip all the signs in that row, "plus" to "minus" and "minus" to "plus".

\

x

3

–3x

3

−2x

3

​

+3x

2

+8x

2

+11x

2

​

+5x

+5x

+10x

​

−4

–6

−10

​

​

Either way, I get the answer:

–2x3 + 11x2 + 10x – 10

Answer:

5% or $4.15

Step-by-step explanation:

Answer:

5%

Step-by-step explanation:

sales tax: 87.15-83 = 4.15

4.15/83 = 0.05

to convert decimal to percentage multiply by 100

0.05*100 = 5%

Answer:

7.35

Step-by-step explanation:

Answer:

60%

Step-by-step explanation:

Hope this helps!!!

Can I have Brainliest???

Answer:

men dog-59.09 women-40.90  total- 100%

men cat-61.29 women-38.70  total- 100%

men bird-39.13 women- 60.87  total- 100%

men total- 55.83   women- 44.16  total- 100%

Step-by-step explanation:

Answer:

y = -x +6

Step-by-step explanation:

i honestly didn't know what form you wanted so i put it in slope-intercept form for you :D

formula for slop-intercept form:

y=mx+b

12 = -1 ( -6 ) + b          -----> filled in the m, x and y

12 = 6 + b                   -----> do PEMDAS

12 - 6 = b                    -----> moved 6 to the other side to isolate variable

6 = b                           -----> you found the y-intercept

y = -x + 6                    ------> fill the equation in :D

Answer:

-5

Step-by-step explanation:

y - 3 = -8

I know that -5 - 3 = -8

oω0

Answer:

1 !

Step-by-step explanation:

it is 1 1/4 units to the left and 3/4 of a unit up

9514 1404 393

Answer:

  1)  (-1 1/4, 3/4)

Step-by-step explanation:

Coordinates in two dimensions are given as an ordered pair, (x, y). That is, the x-coordinate is always listed first, followed by the y-coordinate.

The x-coordinate is the distance to the right of the x=0 point, or y-axis. Distances to the left have a negative sign. Here, the given point is 5 grid squares to the left of the y-axis, so has an x-coordinate of -5/4 = -1 1/4. (Each grid square on this graph is 1/4 unit.)

The y-coordinate is the distance above the y=0 point, or x-axis. Distances below have a negative sign. Here, the given point is 3 grid squares above the x-axis, so has a y-coordinate of 3/4.

The coordinates of the given point are (x, y) = (-1 1/4, 3/4).

_____

Additional comment

The above discussion refers to coordinates on the "Cartesian plane." There are other ways of determining location. Some are based on the distance from an origin and an angle from a reference direction. Then, the ordered pair is not (distance right, distance up), but may be (distance from origin, CCW angle from 'right'). In navigation, it may be (latitude angle, longitude angle), or (bearing distance, bearing angle CW from North).

Answer:

the answer should be B I got 11 and 1/4 and B is one digit off so I'm assuming that this is the answer

Answer:

5. It's halfway between the x-intercepts.

Step-by-step explanation:

The vertex is halfway between the two x-intercepts when parabola is coordinate of the vertex. The points and x and y intercept crosses the x-axis vertically so that a u shaped lines are formed. The quadratic equation is used to find the points on the parabola.

Answer:

-4

Step-by-step explanation:

Given 2w + 8 = 6, find w

found w = -1, sub it into 3w - 1

Answer:

[tex]x = 27[/tex]

Step-by-step explanation:

Angle A and angle E are the same value, therefore you could replace angle E with angle A. So that would make a triangle with angle C, angle D, and angle A. Knowing the sum of all angles in a triangle is 180, we can make an equation representing this.

[tex]3x - 10 + 2x + 10 + 45 = 180[/tex]

Now simply silve the equation to find x.

[tex]5x + 45 = 180 \\ 5x = 135 \\ x = 27[/tex]

There is your answer.

Answer: Infinite Solutions

Step-by-step explanation:

Since 12=12 is a true statement, any value of x will work for that system of equations.

Hope this helps!

Answer:

x-values

independent variable

Step-by-step explanation:

x (the independent variable) is the domain

y (the dependent variable) is the range

Answer:

x-values

independent variable

Step-by-step explanation:

The way I like to think of it is like a plane. X is it going across the runway, and Y is it going into the air

Answer:

[tex]D.[/tex] [tex]5[/tex] [tex]Cans[/tex]

Step-by-step explanation:

[tex]--------------------------------------------[/tex]

[tex]7\ \frac{1}{5}-1\ \frac{4}{5}[/tex] = [tex]5.4[/tex] [tex]or[/tex] [tex]\frac{27}{5}[/tex] [tex]or[/tex] [tex]4\ \frac{2}{5}[/tex] = [tex]5[/tex] [tex]cans[/tex]

[tex]--------------------------------------------[/tex]

Hope this helps! <3

[tex]--------------------------------------------[/tex]

Answer:

A = 50

B = 20

C = 110

Step-by-step explanation:

A triangle is equal to 180°

In order to find the measure of each angle, add angle A, B, and C to get 180°

If angle A = 5x, angle B = 2x and angle C = 110 then 5x + 2x + 110 = 180°

To find each angle, first solve for x:

5x + 2x + 110 = 180° start by adding like terms

7x + 110 = 180° now subtract 110 from 180

7x = 70 finally divide 7 from 70

x = 10

To find each individual angle, substitute x with 10. For example:

A = 5x

A = 5(10)

A = 50

B = 2x

B = 20

C = 110

If you were to add A, B, and C it should equal 180°

110 + 20 + 50 = 110

Answer:

7234.56 [tex]cm^{3}[/tex]

Step-by-step explanation:

The formula for the volume of a sphere is [tex]\frac{4}{3} \pi r^{3}[/tex] where r is the radius. Since [tex]\pi[/tex] is irrational (whose digits goes on forever without repeating), we can write it using the first three numbers: 3.14. Then, substiute 12 for r and 3.14 for [tex]\pi[/tex] into the formula, and you’ll get 7234.56. Finally, add the [tex]cm^{3}[/tex] part to it to get the answer: 7234.56 [tex]cm^{3}[/tex]

Hope this helps! :)

Answer:

Step-by-step explanation:

8x/5 + 4/10 - 2x/5

Answer:

[tex]\frac{6}{5}[/tex] x + [tex]\frac{2}{5}[/tex]

Step-by-step explanation:

Add the x- terms together

[tex]\frac{3}{5}[/tex] x + [tex]\frac{3}{5}[/tex] x + [tex]\frac{2}{5}[/tex]

= [tex]\frac{6}{5}[/tex] x + [tex]\frac{2}{5}[/tex]

Answer:

D) 2(4a+7)

Step-by-step explanation:

when one divides both the number by 2 you get 4a+7 so the answer is 2(4a+7)