All categories

3 years ago

I need help with this problem

Mathematics

2 answers:

IrinaVladis [17]3 years ago

5 0

Answer:

367.57 in³

Step-by-step explanation:

The formula for the volume of a cylinder is $V = h\pi r^2$ , where V is the volume, h is the height, and r is the radius. The picture shows you that r = 3 in and h = 13 in.

Plug these into the formula to find the answer:

$V = (13)\pi 3^2=(13)(9)\pi =117\pi => 367.566$

Round that to the nearest hundredth to get 367.57. The units for the answer should be in cubic inches.

For the surface area, imagine laying the cylinder out. You'd see two circles, for the top and bottom, and then a rectangle, which is the side. The formula is A=2πrh+2πr². Try to do this yourself! You only need to plug in the values: r = 3 in and h = 13 in.

Vladimir [108]3 years ago

5 0

Ahellooooooooooooooooooooo

You might be interested in

I need help with these math problems, i’m not really good at math. i’m gonna be asking more questions cause i really need help w

Gnesinka [82]

Answer:

that's an isosceles triangle

6 0

3 years ago

Read 2 more answers

Consider the quadratic function f(x)=x²-5x+12. Which statements are true about the function and its

finlep [7]

There is only one statement that is true: B. The graph of the function is a parabola.

<h3>How to study and interpret the characteristics of quadratic equations</h3>

In this question we have a <em>quadratic</em> equation, whose characteristics have to be inferred and analyzed. We need to prove each of the five choices presented in the statement:

Choice A:

If we know that x = - 10, then we evaluated it at the function:

f(- 10) = (- 10)² - 5 · (- 10) + 12

f(- 10) = 162

False

Choice B:

By analytical geometry we know that all functions of the form y = a · x² + b · x + c always represent parabolae.

True

Choice C:

The <em>quadratic</em> function opens up as its <em>leading</em> coefficient is greater that 0.

False

Choice D:

If we know that x = 20, then we evaluate it at the function:

f(20) = 20² - 5 · (20) + 12

f(20) = 312

False

Choice E:

If we know that x = 0, then we evaluate it at the function:

f(0) = 0² - 5 · (0) + 12

f(0) = 12

There is only one statement that is true: B. The graph of the function is a parabola.

To learn more on quadratic equations: brainly.com/question/1863222

#SPJ1

7 0

2 years ago

Pls help help help help help help

Sati [7]

Answer:

-89

Step-by-step explanation:

-89

-89= 10(-7) - 19 -----------> -70 - 19

5 0

3 years ago

Read 2 more answers

Use the Pythagorean theorem to determine which of the following give the measures of the legs and hypotenuse of a right triangle

Masteriza [31]

Answer: 3, 4,5 and 17, 15,8

give the measures of the legs and hypotenuse of a right triangle.

Step-by-step explanation:

In order for the measures of the legs and hypotenuse given to form a right angle triangle, they must be Pythagorean triples. A Pythagoras triple is a set of numbers that perfectly satisfy the Pythagorean theorem. The Pythagorean theorem is expressed as

Hypotenuse² = opposite side² + adjacent side². We will apply the theorem to each set of numbers given.

1) 3, 4, 5

5² = 3² + 4² = 9 + 16

25 = 25

It is a Pythagorean triple

2) 4, 11, 14

14² = 11² + 4² = 121 + 16

196 = 137

It is a Pythagorean triple

3) 9, 14, 17

17² = 14² + 9² = 196 + 81

289 = 277

It is not a Pythagorean triple

4) 8, 14, 16

16² = 14² + 8² = 196 + 64

256 = 260

It is not a Pythagorean triple

5) 8, 15 , 17

17² = 15² + 8²

289 = 225 + 64

289 = 289

It is a Pythagorean triple

Therefore, 3, 4,5 and 17, 15,8

give the measures of the legs and hypotenuse of a right triangle.

8 0

3 years ago

Find the slope of the line shown.

kumpel [21]

Add the pic and I’ll be able to answer it

8 0

3 years ago

I need help with this problem ​

I need help with this problem