I need help someone math pls I need this done points and brainlest picture **

Yes the Frist question is 15 students

the second question is 5 well I mean if you do it by Khan academy

the third one is well three dozen eggs are cracked, so probably 12?

Answer:

9x^3 - 3x + 3

Step-by-step explanation:

(4x^3 + 3x + 1) - (-5x^3 + 6x - 2) =

= 4x^3 + 3x + 1 + 5x^3 - 6x + 2

= 9x^3 - 3x + 3

Answer:

9x^(3)-3x+3

Step-by-step explanation:

Answer:3.42

Step-by-step explanation:to get the answer to a area equation you need to multiply the length by the width.

1- not sure, but my guess is C

2- 113? what did i do: I added all the sides and subtracted them by 720

3- 75

Answer:

do you have to add the numbers together or multiply

Answer:

Solution given:

laternal section area =perimeter of triangle×length

=(15+8+17)×9=360mm²

Answer:

the answer is C. 46 square inches

Answer:

1/3x - 13 = 45

to find x:

45+ 13 * 3 = x

Step-by-step explanation:

Answer:

no, because the pythagorean theorem doesnt work out with those numbers.

Step-by-step explanation:

since (3^2)+(6^2) isnt 8^2

Answer:

y+8=-2(x-4)

Step-by-step explanation:

point-slope form is y-y1=m(x-x1) where m is the slope, and (x1,y1) is a point.

We are given all of that information:

slope: -2

point: (4,-8)

substitute the numbers into the equation

y--8=-2(x-4)

we can make --8 to positive 8

so:

y+8=-2(x-4)

this is the equation in point-slope form

Hope this helps!

Answer:

Axis of symmetry: [tex]-\frac{3}{7}[/tex]

The y-intercept: y= (0, -8)

The vertex is: [tex]( -\frac{3}{7} , -\frac{65}{7} )[/tex]

Step-by-step explanation:

My work is shown in the images... :)

I hope I helped, and I always appreciate brainliest!!!  :)

Answer:

i have no idea how to work this sorry!

Answer:

Oya is charming and happy!

Step-by-step explanation:

Answer:

(29.99 + 18.65 + 32.59) 0.85 = 0

(29.99 + 18.65 + 32.59) - 0.15(29.99 + 18.65 + 32.59) = 0

Step-by-step explanation:

The 15% off represents percentage discount. The relationship between percentage discount and total cost is given by the equation;

Actual cost - (Percentage discount) Actual cost = Total cost

The correct options are;

(29.99 + 18.65 + 32.59) 0.85 = 0

(29.99 + 18.65 + 32.59) - 0.15(29.99 + 18.65 + 32.59) = 0

Answer:

(29.99 + 18.65 + 32.59) 0.85 = 0 is correct

Step-by-step explanation:

Answer:

80 KM/H

Step-by-step explanation:

45/60 = 3/4

3/4X = 60 KM

THEN X = 80 KM/H

Answer:

80km/h

Step-by-step explanation:

hope this helps!

habe a good day :)

Answer:

C

Step-by-step explanation:

The possible options are 1, 2, 3, 4, 5, and 6

Out of these, 4 and 6 are even and greater than two.

so it's asking for the chances of rolling 2 out of the available 6.

2/6 = 0.33333333333...

Multiply that by 100 and you have 33.3%

or 33 1/3

Answer:

Step-by-step explanation:

x = 4 --- (given)

9x = 9 × 4

= 36

i think it B

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Answer:

The answer is C

I hope this helped.

Answer:

36 milliliters of rain.

Step-by-step explanation:

The rate at which rain accumluated in a bucket is given by the function:

[tex]r(t)=10t-t^2[/tex]

Where r(t) is measured in milliliters per minute.

We want to find the total accumulation of rain from t = 0 to t = 3.

We can use the Net Change Theorem. So, we will integrate function r from t = 0 to t = 3:

[tex]\displaystyle \int_0^3r(t)\, dt[/tex]

Substitute:

[tex]=\displaystyle \int_0^3 10t-t^2\, dt[/tex]

Integrate:

[tex]\displaystyle =5t^2-\frac{1}{3}t^3\Big|_0^3[/tex]

Evaluate:

[tex]\displaystyle =(5(3)^2-\frac{1}{3}(3)^3)-(5(0)^2-\frac{1}{3}(0)^3)=36\text{ milliliters}[/tex]

36 milliliters of rain accumulated in the bucket from time t = 0 to t = 3.

Answer:

0.55

Step-by-step explanation:

The numerator of the fraction with a denominator of 100 is the number you put on the right of the decimal pt.

Answer:

0.55

Step-by-step explanation:

55/100 = 0.55

You just move decimal two places to the right. Hope this helps, thank you :) !!

#3 maybe be wrong, sorry if it is

Answer:

2

Step-by-step explanation:

Because To get a single x you would have to divide 5x by 5. Whatever you do to one side you have to do to the other so you would do 5 x/5 and get 10/5 and then x=10/5 and 10/5 equals 2 so...x=2 , Hope this helped!

Answer:

This is your answer ☺️☺️☺️

Answer:

b is 9

Step-by-step explanation:

okay

please mark me as brainlist and be happy also add me on sñap

arshad2623f

i will be happy <3

Answer:

its 9 this has to be at least 20 characters

Answer:

5

Step-by-step explanation: im doing the questions now

Answer:

the first answer is 5.

the second answer is a.

Step-by-step explanation:

Answer: 1 m is 9 there are 7 m so 7X9 =63

Step-by-step explanation:

Answer:

the answer would be 9

expination:

because 63 divide by 7 would be 9

Answer:

990

Step-by-step explanation:

20 goes into 100 5 times.

198 x 5 = 990

Answer:

same, equal measure

Hope it helps

Please mark me as brainliest

Thank you

Answer:

This is not collage level, its middle school level lol

Step-by-step explanation:

angles sum: 180(6-2) = 720

50 + 37 + 42 = 129

129 + 5x + 7x - 1 + 3x + 40 = 720

15x + 168 = 720

15x = 552

x = 36.8

check:

129 + 5(36.8) + (3(36.8) + 40) + (7(36.8) - 1) = 720

Correct answer??

180-50 = 130

180-37 = 143

180-42 = 138

Known internal angles:

130 + 143 + 138 = 411

15x + 39 + 411 = 720

15x = 270

x = 18