MATHEMATICS MIDDLE SCHOOL

WILL MARK BRANLIEST!!!!!!
is the following relation a function?
WILL MARK BRANLIEST!!!!!! is the following relation a function? - 1

Answers

Answer 1
Answer:

Answer:

No

Step-by-step explanation:

Why it is no is because two lines are pointing at 3.

See how -2 and 5 are pointing at 3.

Since there are two pointing at 3, it is not a function.

Answer 2
Answer:

NO the answer is no hope i help out

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Please help with expressions and equations

The lateral area of a right cylinder which has a base diameter of 12 cm and a height of 8 cm is?

Answers

Answer:

A = 301.59\ cm^2 or A=96\pi\ cm^2

Step-by-step explanation:

The lateral area of a cylinder is calculated by the following formula

A = 2\pi r * h.

Where r is the radius of the right cylinder and h is the height

In this case we know that the diameter d of the cylinder is

d=2r\n\nr=(d)/(2)\n\nr=(12)/(2)\n\nr=6\ cm

h=8\ cm

Therefore the lateral area is:

A = 2\pi*6 * 8.

A = 96\pi

A = 301.59\ cm^2

Answer:

The lateral area of a right cylinder = 96π cm²

Step-by-step explanation:

Points to remember

The lateral area of a right cylinder  = 2πrh

Where r - Radius of cone and

h - Height of cone

To find the lateral surface area

Here diameter d = 12 cm

then radius r = d/2 = 12/2 = 6 cm

And h = 8 cm

Lateral surface area =  2πrh

= 2 * π *6 * 8 = 96π cm²

Therefore the lateral area of a right cylinder = 96π cm²

If there are two women for every man, how many women are there, when the number is 350. Please show your work.

Answers

1 man ... 2 women
350 men ... x women = ?

If you would like to know how many women are there if the number of men is 350, you can calculate this using the following steps:

1 * x = 2 * 350
x = 2 * 350
x = 700 women

The correct result would be 700 women.
That would give part-women and part-men 
To the nearest whole number 117 men and 233 women. 350 % 3 = 116 1/2 
117+117=233

How do I solve x^2 - 2x - 63 = 0 by completing the square? Like they showed me how here but I'm not sure how this appiles if there's already a c and it doesn't factor into something that can be perfectly squared.

Answers

maybe you can try graphing it if the graph does not have any x-intercepts than it has no real roots
Basically you add a square after the 2x and then another square by the 63. Then, you use (b/2)^2 to put the answer in the square. Take b which is -2 in this case and divide it by 2.  (-2/2= -1), then you square your answer (-1^2= 1). so after doing those calcualtions take the 1 that you got and put it in the first square. For the second square you will put the negative of that number which is -1. Then once you multiply the numbers by what is in the square you'll factor it and get your answer. This is really complicated and you may need to watch a video to get it.

Select all the equations equivalent to 3x+5(-4x+12)-(x-3) A. -18x+63 B. 18x-63 C. 3x-20x+60-x+3 D. 3x+20x+60-x-3 PLEASE help the paper is due tomorrow mourning and i have a lot more to do!

Answers

A is an answer  C is an answer 
A. -18x+63
C. 3x-20x+60-x+3
Are your correct answers because they are equivalent to  
3x+5(-4x+12)-(x-3).

Mini made a recipe that yields 4 and 1 over 2 cups. If each serving is 1 over 2 cup, which expression will help Mini determine the number of servings her recipe will yield? Mini made a recipe that yields 4 and 1 over 2 cups. If each serving is 1 over 2 cup, which expression will help Mini determine the number of servings her recipe will yield? 4 and 1 over 2 ÷ 1 over 2

4 and 1 over 2 ⋅ 1 over 2

4 and 1 over 2 + 1 over 2

4 and 1 over 2 − 1 over 2

Answers

4 and 1 over 2  ÷ 1 over 2

Answer:

A

Step-by-step explanation:

PLEASE HELP QUESTION ATTACHED

Answers

Answer:

(6,3)

Step-by-step explanation:

x + 3y = 15

4x + 2y = 30

This system of equations can either be solved by elimination method or substitution method or both

We are going to use both method to solve this system of education

First we are gong to use elimination method to find the value of y

x + 3y = 15 -------------(1)

4x + 2y = 30 -----------(2)

Using the elimination method, to eliminate x, we want to make coefficients of x the same, to do that we multiply equation (1) by 4

4x + 12y =60 --------------(3)

subtract equation (2) from equation (3)

(4x-4x =0        12y - 2y = 10y        60 -30=30 )

We will have;

10y = 30    

Divide 10 by both-side of the equation

10y/10  =  30/10

y = 3

We will use substitution method to get the value of x,

We will now substitute y=3 in  equation (1)

    x + 3y = 15

      x  + 3(3) = 15

    x + 9  = 15

Subtract 9 from both-side of the equation

x +9 - 9 = 15 -9

x    =  6

The solution to the system of the equations is x=6 and y =3

(6, 3)
(6,3) the one selected is correct
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