MATHEMATICS HIGH SCHOOL

Yh plss I need an answer to this question plss​
Yh plss I need an answer to this question plss​ - 1

Answers

Answer 1
Answer:

Question:

A boy makes a cone of diameter 28 cm without a base. He then cuts a smaller cone of diameter 20 cm from the cone. He used the bottom part as a lampshade. If the height of the lampshade is 11cm,

(a) find the volume of the whole cone.

(b) find in cm2, the area of the material used to make the lampshade.

Answer:

(a) V ≈ 16420.1

(b) A ≈ 2690.1 cm²

Step-by-step explanation:

Solution for (a)

Formula: The formula for the volume of a cone is V = 1/3 hπr².

V= πr² h/3 = π × 28/ 2 × 20/  3 ≈ 16420.0576

16420.0576 in nearest tenths is 16420.1

Therefore, the volume of the whole cone is 16420.1 cm²

Solution for (b)

Formula: A = πrl + πr2.

l = r² + h²

Solving for A

A = πr (r + h²+ r²) = π × 20 × (20 + 112 + 202) ≈ 2690.80077

2690.80077 In nearest tenths, is 2690.1

Therefore, the area of the material used to make the lampshade is 2690.1 cm²

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Answers

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A set of equations is given below:Equation A: c = 2d + 1
Equation B: c = 3d + 5

Which of the following is a step that can be used to find the solution to the set of equations?

2d + 1 = 3d + 5
2d = 3d + 5
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2d + 5 = 3d + 1

Answers

If you would like to find a step that can be used to find the solution to the set of equations, you can do this using the following steps:

c = 2d + 1
c = 3d + 5
__________
c = c
2d + 1 = 3d + 5
2d - 3d = 5 - 1
- d = 4
d = -4

The correct result would be 2d + 1 = 3d + 5.

Answer:

2d + 1 = 3d + 5

Step-by-step explanation:

i

Sketch one cycle of the sine curve. y = -3 sin 4theta

Answers

Answer:

Step-by-step explanation:

We have been given a function:

y=-3sin4\theta

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y=asin bx+c

Where, a is amplitude and period of function is (2\pi)/(b)

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Yo can look at the graph in the attachment.

The a is the amplitude and the period of the function is (2\pi )/(b)

We have been given a function

y = -3 sin 4 \theta

What is the general form of sin wave?

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We will compare it with the general equation which is

Where a is amplitude and period of the function is (2\pi )/(b)

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You can look at the graph.

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brainly.com/question/25699025

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What expression is equivalent to 6(3+0.5)A.6(3)+0.05
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Answers

the answer is d , i did the math

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Answers


You said that                               8c + 5  =  4c - 11

Subtract  4c  from each side:      4c + 5  =       - 11

Subtract  5  from each side:        4c        =       - 16

Divide each side by  4 :                c        =        - 4
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Then you will divided 4 from both side
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