A tutor invited 2 students to a study group. Those 2 students each invited

1 answer:

8 0

Hello, CptnSkippy! The answer to your question is 14 students were invited in total! To get the answer, you can do 2 x 2=4 and 4 x 2 which is 8. now you can draw a picture to this too. good luck and hope you get a good grade for your homework

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So like this am or wrong should I change something

Rainbow [258]

Answer:

ITS WRONG..

1)A and B

2)D

Take 4 as common in first expression

simplify second expresdion you will get 11y +12

8 0

3 years ago

help the volume of the roller is 576cm. Calculate the height and area of the roller if its radius is 8cm.

erastova [34]

Answer:

143.7cm^2

Step-by-step explanation:

Given data

Volume= 576cm^3

Radius= 8cm

The expression for the volume of cylinder is

V= πr^2h

substitute

576= 3.142*8^2*h

576= 3.142*64*h

576= 201.088h

h= 576/201.088

h=2.86cm

The formula for finding the lateral area of a right circular cylinder is:

A=2πrh

substitute

A= 2*3.142*8*2.86

A= 143.7cm^2

Hence the area is 143.7cm^2

6 0

3 years ago

What is the answer lol somebody help me please and thank you !

PilotLPTM [1.2K]

I'm guessing that you know about 45-45-90 and 30-60-90 triangles.

In 45-45-90 triangles, the legs are in a ratio such that the hypotenuse is $\sqrt{2}$ times the legs.

In 30-60-90 triangles, the legs are in a ratio of 1: $\sqrt{3}$ :2

In the picture given we have been given a value of the side of the 45-45-90 triangle. We can deduce that the value of the hypotenuse is 9 $\sqrt{2}$ because of the ratio of the sides of a 45-45-90 triangle.

The 30-60-90 triangle shares the same hypotenuse, and so we now know a value of one of its sides as well. The ratio of the side of value 'x' and the hypotenuse is $\sqrt{3}$ : 2

We can create an equation to solve for x using these ratios:

$\frac{\sqrt{3} }{2}$ = $\frac{x}{9\sqrt{2} }$