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4 years ago

Answer please. Please

Mathematics

2 answers:

Marina CMI [18]4 years ago

6 0

Here is how I solved it. I hope this helps, feel free to ask more questions!

ioda4 years ago

5 0

3y-10 is greater to or equal to 47 add 10 to each side. 3y is great than or equal to 37 Now divide 37 by 3 which gives you an answer of 12.33 I hope this helps you!

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Fill in the blank. The ________ is the probability of getting a test statistic at least as extreme as the one representing the

VLD [36.1K]

Your question has been answered

7 0

4 years ago

In a fifth grade class, 3/4 of the students like to go to the movies. Of the students who like to go to the movies, 2/3 of them

sasho [114]

3/4 * 2/3 = 6/12 or 1/2
1/2 * 4/5 = 4/10 or 2/5

I think this is right but I am not 100% sure

5 0

3 years ago

A cylindrical roller 2.5 m in length, 1.5 m in radius when rolled on a road was found to cover the area of 16500 m2 . How many r

eduard

Answer:

701 revolutions

Step-by-step explanation:

Given: Length= 2.5 m

Radius= 1.5 m

Area covered by roller= 16500 m²

Now, finding the Lateral surface area of cylinder to know area covered by roller in one revolution of cylindrical roller.

Remember; Lateral surface area of an object is the measurement of the area of all sides excluding area of base and its top.

Formula; Lateral surface area of cylinder= $2\pi rh$

Considering, π= 3.14

⇒ lateral surface area of cylinder= $2\times 3.14\times 1.5\times 2.5$

⇒ lateral surface area of cylinder= $23.55 \ m^{2}$

∴ Area covered by cylindrical roller in one revolution is 23.55 m²

Next finding total number of revolution to cover 16500 m² area.

Total number of revolution= $\frac{16500}{23.55} = 700.6369 \approx 701$

Hence, Cyindrical roller make 701 revolution to cover 16500 m² area.

8 0

3 years ago

PLS HELP SHOW ALL YOUR WORKING OUT <br> THANK YOU IN ADVANCE :D

anygoal [31]

$AB=\sqrt{(5-(-1))^2+(3-6)^2}=\sqrt{36+9}=\sqrt{45}=3\sqrt5\approx6.71$

4 0

3 years ago

Read 2 more answers

It takes about 20 minutes to grade a student’s paper. How long, in hours, does it take to grade papers for a class of 30 people?

insens350 [35]

Answer:

The answer is 600 minutes (10 hours)

Step-by-step explanation:

20 minutes = 1 student.

30 students x 20 = 600 minutes

600mins / 60 (because an hour has 60 mins) = 10 hours.

5 0

3 years ago

Read 2 more answers