MATHEMATICS HIGH SCHOOL

Can someone please just tell me if I did this right? It’s the volume of a cone.

Answers

Answer 1
Answer:

Answer:

If your asking for the equation: V=1/3*h*π*r²

Step-by-step explanation:

* = multiplication sign

h = height

r = radius

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The state of Pennsylvania covers almost 29 million acres.of the total acreage,about 53% is forest land.about how many acres of forest land are in the state of Pennsylvania?

Answers

29×0.53=15.37 million acres

Mr young has 30 times as many pencils as jack. The whole class has 200 times as many pencils as jack. If jack has 2pencils, how many pencils does mr young have ? And the whole school have?

Answers

well you would do 30*2= 60
and that would be your answer

Which inequality's graph will have a dashed boundary line?A.)x + 7y > 3



B.)7x + y ≤ 3



C.)6x − 5y ≥ 4



D.)y − x ≤ 3

Answers

THE EQUALITY WITH BOUNDARY IS B

4x – 4 – 3x > 13 – 7x – 1 + 8

Answers

If you would like to solve the inequation 4 * x - 4 - 3 * x > 13 - 7 * x - 1 + 8, you can do this using the following steps:

4 * x - 4 - 3 * x > 13 - 7 * x - 1 + 8
4 * x - 3 * x + 7 * x > 4 + 13 - 1 + 8
8 * x > 24      /8
x > 24/8
x > 3

The correct result would be x > 3.

What is the value of the binary number 101 in base 10?

Answers

The binary number 101 needs to be converted to base 10.
Label the binary number starting from the digit on the left with 0, 1, 2.
Then multiply each digit by 2(binary) raised to the power of the label it carries and then add all together to get the value in base 10
101=(1x2²)+(0x2¹)+(1x2⁰)
     =4+0+1
     =5
The answer is 5

Which polynomial equations have -i as one of their roots? 1. x^3 + 5x^2 - 20 = 0

2. x^3 - x^2 + x - 1 = 0

3. x^3 + 3x^2 + x + 3 = 0

4. x^3 - 2x^2 + x - 2 = 0

5. x^3 - 6x^2 - 16x + 96 = 0

Answers

i = sqrt(-1)
i^2 = -1
(-i)^2 = (-i)(-i) = i^2 = -1
(-i)^3 = (-i)(-i)(-i) = (-i)(i^2) = i

use these facts to find which equation is correct if x = -i

i bet on 2,3 or 4
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