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2 years ago

8

The diameter of a parabolic mirror is 22 centimeters, and the mirror has a depth of 0.5 centimeters at the center. What is the e

quation of the the cross-sectional parabola of the mirror?

1 answer:

a_sh-v [17]2 years ago

6 0

1/242x^2 is your answer

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PLEASE HELP ASAP

dsp73

Answer:

Cubed root of 9

Step-by-step explanation:

3^(2/3)

=³√3²

= ³√9

4 0

2 years ago

Read 2 more answers

Ax + By = C represent the lineAn egg is dropped straight down from a diving board whose end is 7 ft from the edge of the pool, w

Katen [24]

Answer:

A = 1, B = 0, C = 7

Step-by-step explanation:

The egg follows the path x = 7, so the equation is ...

1x +0y = 7

A = 1, B = 0, C = 7

6 0

2 years ago

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A destroyer on patrol spots an aircraft at an altitude of 10,000 ft and an angle of elevation of 20⁰. How far is the aircraft fr

Reika [66]

$sin= \frac{opp}{hyp} \\\\sin (20) = \frac{10000}{hyp}\\\\hyp= \frac{10000}{sin(20)} \\\\hyp= 29238 ft$

The aircraft is 29238 ft from the ship

//

Note: this is based on my assumption that we are looking for the hypotenuse.

If we are looking for the adjacent side, then the answer would be 27475 ft.

4 0

2 years ago

. Find the simple interest on a $2,219.00 principal, deposited for 6 years at a

koban [17]

Answer:

SI=PTR/100

SI=2129*6*1.91/100

SI=24398.34/100

SI=243.9834$

7 0

2 years ago

A bucket of paint has spilled on a tile floor. The paint flow can be expressed with the function p(t) = 6t, where t represents t

Neko [114]

Answer:

A) A[p(t)] = 36πt²

B) 7234.56 square units

Step-by-step explanation:

<u>Given functions</u>:

$\begin{cases}p(t)=6t \\ A(p)=\pi p^2 \end{cases}$

<u>Part A</u>

To find the area of the circle of spilled paint as a function of time, substitute the function p(t) into the given function A(p):

$\begin{aligned}A(p) & = \pi p^2\\\\ \implies A[p(t)] & = \pi [p(t)]^2\\& = \pi (6t)^2\\& = \pi 6^2 t^2\\& = 36\pi t^2\end{aligned}$

<u>Part B</u>

Given

t = 8 minutes
π = 3.14

Substitute the given values into the equation for A[p(t)} found in part A:

$\begin{aligned}A[p(8)] & = 36\pi t^2\\& = 36 \cdot 3.14 \cdot 8^2\\& = 36 \cdot 3.14 \cdot 64\\& = 113.04 \cdot 64\\& = 7234.56\:\: \sf square\:units\end{aligned}$

Therefore, the area of spilled paint after 8 minutes if 7234.56 square units.

4 0

1 year ago

Read 2 more answers