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Setler79 [48]
3 years ago
5

Please can you help for this question

Mathematics
1 answer:
tekilochka [14]3 years ago
6 0

Answer:

A

Step-by-step explanation:

From the diagram, angle A is congruent to angle E. This is because they are both marked with the same symbol, signifying that they are congruent.

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If a dolphin is at the surface of the ocean. What is it’s elevation please explain
OverLord2011 [107]
0 it is at ocean level so elevation is zero
4 0
3 years ago
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Write the integral in one variable to find the volume of the solid obtained by rotating the first-quadrant region bounded by y =
Dovator [93]

Answer:

V = π ∫₀² (y² − 8y + 6√(2y)) dy

or

V = π ∫₀² (6x − 5x² + x³) dx

Step-by-step explanation:

y₁ = 0.5x²

y₂ = x

First, find the intersections of the curves.

0.5x² = x

x² = 2x

x² − 2x = 0

x (x − 2) = 0

x = 0 or x = 2

So the points of intersection are (0, 0) and (2, 2).

When we revolve this region about the line x = 3, we get a hollow shape that looks like an upside-down funnel, or a volcano.

One option is to use washer method to find the volume, by cutting a thin horizontal slice of thickness dy, inner radius 3−x₁ = 3−√(2y), and outer radius of 3−x₂ = 3−y.

V = ∫₀² π [(3−y)² − (3−√(2y))²] dy

V = ∫₀² π (9 − 6y + y² − 9 + 6√(2y) − 2y) dy

V = π ∫₀² (y² − 8y + 6√(2y)) dy

Another option is to use shell method to find the volume, by cutting a thin vertical slice of thickness dx, radius 3−x, and height y₂−y₁ = x−0.5x².

V = ∫₀² 2π (3 − x) (x − 0.5x²) dx

V = ∫₀² 2π (3x − 1.5x² − x² + 0.5x³) dx

V = ∫₀² 2π (3x − 2.5x² + 0.5x³) dx

V = π ∫₀² (6x − 5x² + x³) dx

The second option is arguably easier to evaluate, but either one will get you the same answer (V = 8π/3).

7 0
3 years ago
When five is added to three more than a certain number, the result is 19. What is the number?
pshichka [43]

Answer:

11 easy

Step-by-step explanation:

5 plus the three from the three more makes 8 eight minus 19 is 11

3 0
3 years ago
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Your class is holding a bake sale to raise money for a field trip. If you are selling cakes for $3.25, what is the lowest you ne
Inessa [10]

Answer:

there needs to be at least 77 cakes sold

Step-by-step explanation:

let 'c' = # cakes sold

3.25c ≥ 250

c ≥ 250÷3.25

c ≥ 76.9

8 0
2 years ago
PLEASE HELP ME I DONT UNDERSTAND
drek231 [11]

Answer:

\frac{v}{-9} < -18 or v ÷ -9 < -18

Step-by-step explanation:

"The quotient" means that it is a division problem. That means you have to divide.

Less than is a symbol that stands for *The number is less than the other number*

3 0
3 years ago
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