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2 years ago

HELP ME PLEASE!!! best answer gets brainliest show steps please

Mathematics

2 answers:

solniwko [45]2 years ago

7 0

Answer:

height = 20 cm

Step-by-step explanation:

The volume (V) of a cylinder is calculated using the formula

V = πr²h ← r is the radius and h the height

given r = 12 and V = 2880π, then

π × 12²h = 2880π

144πh = 2880π ( divide both sides by 144π )

h = $\frac{2880\pi }{144\pi }$ = 20

klemol [59]2 years ago

4 0

The answer is what He said

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The function for finding the population growth in Liverpool is given by f(t) = 35(1.2)t. What is the initial population? 0.2 35

jasenka [17]

T - would be time
35 - initial population
1.2 - growing anual ration

So for ex if you want to know how much it will grow in 10 yrs:

f(10) = 35(1.2)10
= 42*10
= 420 people after 10 yrs

8 0

2 years ago

What is the following product?

devlian [24]

Answer: Last Option

$4x^5\sqrt[3]{3x}$

Step-by-step explanation:

To make the product of these expressions you must use the property of multiplication of roots:

$\sqrt[n]{x^m}*\sqrt[n]{x^b} = \sqrt[n]{x^{m+b}}$

we also know that:

$\sqrt[3]{x^3} = x$

$\sqrt[3]{16x^7}*\sqrt[3]{12x^9}\\\\\sqrt[3]{16x^3x^3x}*\sqrt[3]{12(x^3)^3}\\\\x^2\sqrt[3]{16x}*x^3\sqrt[3]{12}\\\\x^5\sqrt[3]{16x*12}\\\\x^5\sqrt[3]{2^4x*2^2*3}\\\\x^5\sqrt[3]{2^6x*3}\\\\4x^5\sqrt[3]{3x}$

6 0

2 years ago

Find the coordinates of the fourth vertex that completes the construction of the rectangle on the coordinate plan

SOVA2 [1]

The coordinates of the fourth vertex are (2, -4).

Step-by-step explanation:

Step 1:

The opposite sides of a triangle are always equal.

First, we plot the three given points of the rectangle.

Assume the top left corner is A, the top right corner is B, the bottom left corner is C and the bottom right corner is D.

We need to determine the coordinates of point D.

Step 2:

The coordinates of the given three points are

A (-2, 5), B (2, 5), and C (-2, -4).

A and C are the same side i.e. the left side, they have the same x coordinate of -2.

So B and D will have the same x coordinate of 2.

A and B are on the same side too i.e. the top side so they both have the same y coordinate of 5.

The points C and D are two ends of the bottom side so they must have the same y coordinate of -4.

So the coordinates of the fourth vertex are (2, -4).

4 0

2 years ago

Each month, a phone company charges $20 for 500 minutes of talk time plus $0.45 for each additional minute. Unlimited texting co

slavikrds [6]

Answer:

Hello there! I hope your having a good day. I'm not exactly sure about this answer: 50o=30 u+(20m+.45a)

Step-by-step explanation:

8 0

2 years ago

2a - 3b = -11<br> a + 3b = 8

dlinn [17]

Answer:

b = 3 and a = -1

Step-by-step explanation:

You have your given equation:

2a - 3b = -11

a + 3b = 8

You need to find what a and b is.

To find b:

2a - 3b = -11

-2a - 6b = -16

I multiplied a + 3b = 8 by -2. When you multiply a number you have to multiply all of them. You have to choose a number that would cancel out all of a.

So now your equation would look like this when you solve for b:

2a - 3b = -11

-2a - 6b = -16

-------------------

a - 9 = -27 then you divide -9 to -27 which is 3 so b = 3.

To find a:

2a - 3b = -11

a + 3b = 8

I multiplied a + 3b = 8 by -1 and 2a - 3b = -11 by -1 as well.

Your equation will look like this when you solve for a:

-2a + 3b = 11

-1a - 3b = -8

------------------

-3a = 3 then divide -3 to 3 which is -1 so a = -1.

Check to see if you have the correct answer by plugging in the number you got for a and b into the equation and solve.

1. 2(-1) -3(3) = -11

-2 - 9 = -11

2. -1 + 3(3) = 8

-1 + 9 = 8

8 0

2 years ago

HELP ME PLEASE!!! best answer gets brainliest show steps please​

HELP ME PLEASE!!! best answer gets brainliest show steps please