Hello I wanted to ask if this was right or if im doing it wrong since i am consfused on why there is a second point

Answer:

[tex]2x^{2}[/tex]+5x+9

Step-by-step explanation:

The difference of the given expression is 8x²-5x-9.

The given expressions are -3x²+5x-9 and 2x²+3(x²-6).

To subtract an algebraic expression from another, we should change the signs (from '+' to '-' or from '-' to '+') of all the terms of the expression which is to be subtracted and then the two expressions are added.

Now, subtract -3x²+5x-9 from 2x²+3(x²-6)

2x²+3(x²-6)-(-3x²+5x-9)

= 2x²+3x²-18+3x²-5x+9

= 8x²-5x-9

Hence, the difference of the given expression is 8x²-5x-9.

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Answer:

22¹/²

Step-by-step explanation:

y/36=15/24

cross multiply

y×24=36×15

24y=540

divide both sides by 24

y=540/24

y=22¹²/²⁴

break it down

y= 22¹/²

Answer:

22.5

Step-by-step explanation:

cross multiply

y/36 = 15/24

y×24 = 36×15

y×24 = 540

take 24 on the other side and divide it by 540

y = 540/24

y = 22.5

Answer:

x=−70/31

thats the answer

Answer:

15th term = 116

Step-by-step explanation:

a= 4

Sum of an A.P = n/2 {2a + (n-1)d}

sum of first five term is equal to one-fourth of the sum of the next five term

5/2{ 2*4 + (5-1)d} = 1/4 × 10/2{2*4 + (10-1)d

5/2 {8 + 4d} = 1/4 × 5{ 8 + 9d}

40/2 + 20/2d = 1/4{ 40 + 45d)

20 + 10d= 40/4 + 45/4d

20 + 10d = 10 + 45/4d

20 - 10 = 45/4d - 10d

10 =45d - 40d /4

10 = 5/4d

Divide both sides by 5/4

10 ÷5/4 = d

10×4/5 = d

40/5 = d

8 = d

d= 8

Find the 15th term

15th term = a + (n-1)d

= 4 + (15-1)8

= 4 + (14)8

= 4 + 112

= 116

The 15th term is 116

Answer:

s.jnufdhgvsgvru

Step-by-step explanation:

Answer:

Lose 8 yards on four plays in a row

Answer:

-8x4

Step-by-step explanation:

Answer:

a. True

Step-by-step explanation:

Calculus is the mathematical study of continuous change. Calculus is usually developed by working with very small quantities. Calculus has two major branches, which are,  differential calculus and integral calculus. Differential calculus involves instantaneous rates of change, and the slopes of curves, while integral calculus deals with the accumulation of quantities, and areas under or between curves.

Answer:

122 strawberries

Step-by-step explanation:

divide 2928 by 24 to get the number of strawberries in each box

Answer:

...not lie on the same plane.

Step-by-step explanation:

Answer:

AB=14

Step-by-step explanation:

First you write the equation 2(2x-4)=28 because if b is the midpoint then AB is half of the line so you multiply that half by two the make it equal to the whole line.

Then you distribute the two and get 4x-8=28.

Then you add 8 to 28 and get 36.

Then you divide 36 by 4 because the 4 and x are being multiplied together so you have to divide to get them apart.

So then you get x=9 and you aren't done yet because you have to plug x into 2x-4.

So it is 2(9)-4 which is 18-4 which equals 14.

Answer:

The answer is 8 are Black and 4 are Latino

Answer:

  C)  31.2

Step-by-step explanation:

The length of AB can be found from the Pythagorean theorem:

  AB² = AD² +BD²

  AB = √(25 +144) = 13

All of the right triangles are similar, so ...

  BC/BD = AB/AD

  BC = BD(AB/AD) = 12(13/5)

  BC = 31.2 . . . units

Answer:

C

Step-by-step explanation:

Answer:

[tex] \boxed{ \bold{ \huge{ \boxed{ \sf{32 \: {m}^{2} }}}}}[/tex]

Step-by-step explanation:

Given,

Length of a rectangle( l ) = 8 m

Width of a rectangle ( w ) = 4m

Area of a rectangle ( A ) = ?

Finding the area of a rectangle having a length of 8m and a width of 4m

[tex] \boxed{ \bold{ \sf{area \: of \: a \: rectangle = length \times width}}}[/tex]

plug the values

⇒[tex] \sf{ area \: of \: a \: rectangle = 8m \times 4m}[/tex]

Multiply the numbers : 8 and 4

⇒[tex] \sf{area \: of \: a \: rectangle = 32 \: {m}^{2} }[/tex]

Hope I helped!

Best regards!!

Answer:

0.86 x 0.24 = 0.2064

Step-by-step explanation:

Answer: The answer is 700

Step-by-step explanation:

I hope is right?

Answer:

1. 20(-1) - (-4) (-5)= -40

2.[-12 + (-3 - 3)]= -18

Step-by-step explanation:

20(-1) - (-4) (-5)

=(20 * -1) - (-4 * -5)    

(When 2 numbers are written next to each other in   brackets without any sign in between them, it means multiplication)

=(-20) - (20)

= -20 -20

= -40

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

[-12 + (-3 - 3)]

=[-12+(-6)]

=[-12-6]

= -18

Answer:

60(a+b) means that you would have to distribute

While 60a+ 60b is already in it's simplest form

Answer:  (10,5)

Step-by-step explanation:

You have to graph it but the equations are

x+y=15 (total number of games and rides)

2x+4y+40 (total money spent)

first equation is also y= -x+15

second is 4y= -2x+40

                 y= -.5x+10

So graph y= -x+15 and y= -1/2x+10 and where the lines cross is your answer

also -x+15= -.5x+10

           15=.5x+10

           5=.5x

           10=x

10+y=15

y=5

(10,5)

Answer:

n= -2

Step-by-step explanation:

If you have any questions about the way I solved it, don't hesitate to ask ;)

Answer:

B

Step-by-step explanation:

The total cost of the television is $360 if a woman bought a new color television with a $40 down payment and 16 monthly payments of $20 each.

It is defined as the amount one party needs to pay to another party as the first party borrowed an amount that will be credited by the second party. Debt occurs when one party cannot be able to purchase something under normal circumstances.

We know the formula for the monthly payment:

[tex]\rm Monthly \ Payment \:=\:\dfrac{\left A\left(i\right)\left(1+i\right)^{n}\right}{\left(1+i\right)^{n}-1}[/tex]

It is given that:

A woman bought a new color television with a $40 down payment and 16 monthly payments of $20 each.

Down payment = $40

Number of months = 16

Per month payment = $20

The total cost of the television = 40 + 16(20)

The total cost of the television = 40 + 320

The total cost of the television = $360

Thus, the total cost of the television is $360 if a woman bought a new color television with a $40 down payment and 16 monthly payments of $20 each.

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Answer:

-6

Step-by-step explanation:

x=?

y=8

2x + 3y = 12

=>2x+(3 *8)= 12

=>2x+24 =12

=>2x=12-24

=>x=-12/2

=>x=-6

Answer:

A) x≤-5

Step-by-step explanation:

4x+12≤-8

4x≤-20

x≤-5

Answer:x <_>Step-by-step explanation:

Answer:

Since the length of the drawing is 200 ft. and equivalent to 13.33 in. with a scale of 15 ft to 1 in. and the length of the paper is 11 in., Adoncia's drawing will not fit on the sheet of paper

Step-by-step explanation:

The given parameters are;

The scale of the drawing is 15 ft = 1 in.

The actual dimensions of the monument;

Height = 80 ft.

Length = 200 ft.

Therefore, we have;

The required dimension of the paper height = 80/15 = 16/3 = 5.33 in.

The required dimension of the paper length = 200/15 = 40/3 = 13.33 in.

The given paper dimension by 11 in. which is of a dimension of that of a standard  letter paper size of 8.5 in. by 11 in.

Drawing length, 13.33 in. > Paper length > 11 in.

Adoncia's drawing will not fit on the sheet of paper.

Greetings from Brasil...

According to the statement of the question, we can assemble the following equation:

9 + 6X = 3

6X = - 6

Answer:

D (4)

Step-by-step explanation:

So we have the function:

[tex]f(t)=3t^2+5t+6[/tex]

And we want to find f(-3).

To do so, substitute -3 for x. Thus:

[tex]f(-3)=3(-3)^2+5(-3)+6[/tex]

Square:

[tex]f(-3)=3(9)+5(-3)+6[/tex]

Multiply:

[tex]f(-3)=27-15+6[/tex]

Add:

[tex]f(-3)=18[/tex]

So, our answer is D (4)

Answer:

3 pyramids.

Step-by-step explanation:

The volume of one pyramid is 1/3 * b^2 * h

= 1/3 * 12^2 * 25

= 1200 cm^3.

The volume of one ball bearing = 4/3 * π * 0.7^3

= 1.43676 cm^3.

Therefore the volume of 2490 ball bearings = 2490 * 1 .43676

= 3577.53 cm^3.

So we need 3577.53 / 1200 = 2.98 = 3 pyramids.

Answer: 1/4

Step-by-step explanation: You will need  1/4 of cup flour to make 1/2 of a bath of cookies.

Answer:

Step-by-step explanation:

In this problem we are required to find the percentage decrease in the value of a car that originally cost $25,000

if the present value is now $14,000

we can solve for the percentage decrease by presentment the original cost of the car by the original cost and multiplying by 100

i.e = (14,000/25,000)*100

= (14/25)*100

= 0.56*100

= 56%

Hence the value of the car has decreased by 56%

Answer:

- x + 2y = 1

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Calculate m using the slope formula

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

with (x₁, y₁ ) = (- 1, 0) and (x₂, y₂ ) = (3, 2)

m = [tex]\frac{2-0}{3+1}[/tex] = [tex]\frac{2}{4}[/tex] = [tex]\frac{1}{2}[/tex], thus

y = [tex]\frac{1}{2}[/tex] x + c ← is the partial equation

To find c substitute either of the 2 points into the partial equation

Using (3, 2) , then

2 = [tex]\frac{3}{2}[/tex] + c ⇒ c = 2 - [tex]\frac{3}{2}[/tex] = [tex]\frac{1}{2}[/tex]

y = [tex]\frac{1}{2}[/tex] x + [tex]\frac{1}{2}[/tex] ← in slope- intercept form

Multiply through by 2

2y = x + 1 ( subtract x from both sides )

- x + 2y = 1 ← in standard form

Answer:

Step-by-step explanation:

time(hours)           |        distance traveled(miles)

_____________|_______________________                        

2                          |                      1100  

_____________|_______________________

3                           |                     1650

_____________|_______________________                      

6                           |                     3300

The distance covered by the airplane after 2 hours given a constant speed is 1100 miles

The distance covered by the plane in 2 hours is 1100 miles

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