Please answer this this is timed!

Answer:

It's D I got it right

Step-by-step explanation:

I know

Answer:

D

Step-by-step explanation:

x = –3, x = 1, x = 3.5, and x = 5

Answer:

These photos have the formulas of sub multiple angle trigonometry.

Hope it helps:)

14. Is B

16. Is B

correct

Answer:

Step-by-step explanation:

e

Answer:

a. Tip is before the discount so the waiter will get;

= 42 * 18%

= $7.56

b. New total;

Coupon of 15% off applies;

= 42 * (1 - 15%)

= $35.70

Add the tip;

= 35.70 + 7.56

= $43.26

Answer:

y=mx+b is slope intercept form

In slope intercept form, m represents the slope, b represents the y-intercept and x and y represent the values of x and y on a graph.

Therefore, the slope is m and the y-intercept is b

Step-by-step explanation:

Answer:

x = 3

y = -1

Step-by-step explanation:

in this system, we are given that y = x - 4

this means that we can take the other equation and replace y with x - 4:

so 2x - 3y=9 turns into

2x -3 (x - 4) = 9

distribute -3 to x and -4:

2x - 3x + 12 = 9

add like terms and subtract 12 from both sides

-x = -3

divide both sides by -1 to get rid of the negative on x:

x = 3

now we have the value of x, so we can replace the x in y = x - 4 with the value we just got

so y = x- 4 turns into

y = (3) - 4

solve and you get

y = -1

Answer:

y=9-x/3

Step-by-step explanation:

swap the variable y=27-3x becomes x=27-3y

now solve the equation x=27-3y for Y

y=9 - x/3

and done:)

HOPE IT HELPS ♡

Answer:

62

Step-by-step explanation:

let there be X people in the beginning

so

X-18+21=65

X+3=65

X=65-3

X=62

To be honest I have not liked anything about being online at school, I hope to return soon (but I am a little scared because I am new to school and I have no friends: c) If the next semester they open I plan to go to schools, but if they don't open, then I'll stay online. I hope they find your pet soon! I don't know you but I love you very much!

Answer:

I don't like not being able to see my friends and miss seeing my teachers and don't do as well. I also struggle when i cant be face to face with a teacher so I can get help. I liked not having to wear a mask and chill at home in my pajamas. I also do not plan to be virtual next semester.

Step-by-step explanation:

Pls give me brainliest

Answer:

- 16x + 3y

Step-by-step explanation:

this can be done in two ways- vertical method or horizontal :

I did one:

( i hope this is right)

Answer:

3/15

Step-by-step explanation:

maybe im ryt pero di ako sure sa sagot,ko

Answer:

He multiplied 3/4 by 1/5 instead of dividing 3/4 by 1/5. (d)

Step-by-step explanation:

took the quiz on edge 100%

Answer:

dilation

Step-by-step explanation:

Answer:

dilation

Step-by-step explanation:

on edge

Answer:

15 units

Step-by-step explanation:

[tex]d \: = \sqrt{(x2 - x1) ^{2} + (y2 - y1) ^{2} } [/tex]

d = 14.866

d = 15

Answer:

easy uzi tay k or sofaygo

Step-by-step explanation:

Answer:

10

Step-by-step explanation:

Answer:

I would recommend that if it is re-testable, keep that slide open and open another so you can copy from the other slide

Answer:

A

Step-by-step explanation:

4 is the maximum Y value reached by the function, therefore it is the only possible answer

Answer:

b

Step-by-step explanation:

b

Answer:

it would be 95 divided by 60

Step-by-step explanation:

but the answer to that is 1.5833333333333333333

Answer:

Let's define.

L = rate at which the large pump fills the pool.

S = rate at which the small pump can fill the pool.

We have two relations:

"Two large and 1 small pump can fill a swimming pool in 4 hours."

(2*L + S)*4h = 1

"One large and 3 small pumps can also fill the same swimming pool in 4 hours."

(L + 3*S)4h = 1

Then we have the system of equations:

(2*L + S)*4h = 1

(L + 3*S)4h = 1

To solve this system, we need to isolate one of the variables in one of the equations, i will isolate S in the first equation:

S = 1/4h - 2*L

Now we can replace that in the second equation:

(L + 3*(1/4h - 2*L))4h = 1

L + (3/4h) - 6*L = 1/4h

-5*L = 1/4h - 3/4h = -2/4h

L = (2/4h)*(1/5) = (2/20h) = 1/10h

This means that one large pump needs 10 hours to fill one pool.

With this, we can find the value of S:

S = 1/4h - 2*L = 1/4h - 2/10h = 5/20h - 4/20h = 1/20h

This means that a small pump needs 20 hours to fill a pool.

Now we can answer:

How many hours will it take 4 large and 4 small pumps to fill the swimming pool?

We need to solve the equation:

(4*(1/10h) + 4*(1/20h))*T = 1

We need to find the value of T.

T = 1/((4*(1/10h) + 4*(1/20h)) = 1.67 hours.

This means that 4 large and 4 small pumps need 1.67 hours to fill a pool.

Answer:

0.2

Step-by-step explanation:

just subtract

Answer: y=x+8. let me knw if you need the explanation :)

Step-by-step explanation:

Answer:

y=x+8

Step-by-step explanation:

1. Use the slope formula to find slope

y2-y1/x2-x1

-12-5/-20--3

= -17/-17

= 1

2. Plug in the slope and of the coordinates into point-slope form

y-y1=m(x-x1)

y-5=1(x+3)

3. Distribute and add 5 to both sides.

y-5=1x+3

y=1x+8

Answer:

No solution

Step-by-step explanation:

2x + 4y = 8

-2x - 4y = 8

0 ≠ 16