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3 years ago

Plz help me do number 1 and 2 its 5th grade THANKS!!

Mathematics

1 answer:

Kipish [7]3 years ago

5 0

Answer:

233/ 11 is 20.27 so you would round up is the number was above 5 but it’s 2 so it would just be 20

Step-by-step explanation:

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a wheel has a radius of 20 cm if it rolls 60 cm without slipping, through how many radians has it turned

Lerok [7]

Answer:

Step-by-step explanation:

Arc length = radius × angle

s = r θ

60 cm = 20 cm × θ

θ = 3 radians

3 0

2 years ago

X = -2y + 300 3y = 800 - 4x

devlian [24]

Answer:

Step-by-step explanation:

$\left\{\begin{array}{ccc}x=-2y+300&(1)\\3y=800-4x&(2)\end{array}\right\\\\\text{Substitute (1) to (2):}\\\\3y=800-4(-2y+300)\qquad\text{use the distributive property:}\ a(b+c)=ab+ac\\\\3y=800+(-4)(-2y)+(-4)(300)\\\\3y=800+8y-1200\\\\3y=8y-400\qquad\text{subtract}\ 8y\ \text{from both sides}\\\\-5y=-400\qquad\text{divide both sides by (-5)}\\\\y=80\\\\\text{Put it to (1):}\\\\x=-2(80)+300\\\\x=-160+300\\\\x=140$

8 0

2 years ago

Read 2 more answers

Plz help me I am stuck on this question

tigry1 [53]

The volume of a cylinder is the area of the circular face times the length of the cylinder.

the area of a circular face is
$A=\pi r^2 = \pi\frac{d^2}{4}$

hence the volume is
$V= \pi r^2 L = \pi \frac{d^2}{4} L$

the Length "L" is 36 in
the diameter "d" is 3 in

6 0

2 years ago

Why is 12 * 10-8 is NOT a correct representation of scientific notation?

sattari [20]

Answer:

see below

Step-by-step explanation:

Scientific notation is a * 10 ^b

a must be a number between 1 ( including 1 ) and less than 10

12 is greater than 10 so it is not scientific notation

3 0

3 years ago

What is the inverse of the function y=4^x

KengaRu [80]

Answer: We are supped to solve for y so it will be division because that's the inverse for x. so: x/4 is your answer.

3 0

2 years ago

Plz help me do number 1 and 2 its 5th grade THANKS!!​

Plz help me do number 1 and 2 its 5th grade THANKS!!