All categories

3 years ago

Please answer this correctly

Mathematics

2 answers:

Vinil7 [7]3 years ago

7 0

Answer:

V =113.04 cm^3

Step-by-step explanation:

The volume of a cylinder is given by

V = pi r^2 h

V = 3.14 (3)^2 4

V = 3.14 *9*4

V =113.04 cm^3

arlik [135]3 years ago

5 0

Answer:

Step-by-step explanation:

3*3.14

9.42*9.42

88.7364*4

354.9456 rounded to

355

You might be interested in

A toy rocket is fired into the air from the top of a barn. It's height h in yards above the ground after t seconds is given by t

mariarad [96]

Answer:

The rocket reached its maximum height at 2 seconds.

The maximum height of the rocket is 36 yards.

Step-by-step explanation:

Quadratic equation:

In the format

$h(t) = ah^{2} + bh + c$

The maximum height happens at the instant of time:

$t_{v} = -\frac{b}{2a}$

The maximu height is $h(t_{v})$

In this question:

$H(t) = -3t^{2} + 12t + 24$

So $a = -3, b = 12, c = 24$

When did the rocket reach its maximum height?

$t_{v} = -\frac{12}{2*(-3)} = 2$

The rocket reached its maximum height at 2 seconds.

What was the maximum height of the rocket?

H(2).

$H(2) = -3*2^{2} + 12*2 + 24 = 36$

The maximum height of the rocket is 36 yards.

3 0

3 years ago

George has $23 to spend on art supplies.he wants to buy markers paper and glue. if the total cost of the markers and paper is mo

siniylev [52]

23 ≥ p > 14 and p represents the amount of money to spend

5 0

3 years ago

Read 2 more answers

What is the sum of the interior angles in the polygon below? Show and explain your work.

Katena32 [7]

Answer:

HEXAGON:

Using the same methods as for hexagons to the right (I'll let you do the pictures)...

To find the sum of the interior angles of a dodecagon, divide it up into triangles... There are ten triangles... Because the sum of the angles of each triangle is 180 degrees... We get

So, the sum of the interior angles of a dodecagon is 1800 degrees.

Regular Dodecagons:The properties of regular dodecagons:

All sides are the same length (congruent) and all interior angles are the same size (congruent).

To find the measure of the angles, we know that the sum of all the angles is 1800 degrees (from above)... And there are twelve angles...

So, the measure of the interior angle of a regular dodecagon is 150 degrees.

The measure of the central angles of a regular dodecagon:

To find the measure of the central angle of a regular dodecagon, make a circle in the middle (I'll let you do the picture)... A circle is 360 degrees around... Divide that by twelve angles...

So, the measure of the central angle of a regular dodecagon is 30 degrees.

7 0

4 years ago

Jackson currently has $35 in his bank account, and he is saving $15 a week to eventually buy a new cell phone. He can represent

Ket [755]

15x7 = 105

105+35= 140

$140

8 0

3 years ago

I need help with this I am giving 60 points

inna [77]

Answer:

<2 ≅<4 with reason of vertical angle theorem.

Step-by-step explanation:

The vertical angle theorem states that two opposite (non-adjacent) angles formed by 2 intersecting lines have equal measure. In this problem, we are given that the angles are vertical angles. So the statement is that <2 ≅<4 with reason of vertical angle theorem.

3 0

3 years ago