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3 years ago

12

A spotlight can be adjusted to effectively light a circular area of up to 6 meters in diameter. To the nearest tenth, what is th

e maximum area that can be effectively lit by the spotlight? Use 3.14 for pi.

1 answer:

Inga [223]3 years ago

5 0

i know im late but i will still grab these points

Answer: 28.27 m

Step-by-step explanation: A = 1/4 π d2= 1/4 * π * 6*2 ≈ 28.27

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A bicycle store costs $4200 per month to operate. The store pays an average of $75 per bike. The average selling price of each

Lelechka [254]

Store should sell about 31 bicycle for average price of $135 each bicycle.

Step-by-step explanation:

To find bike we need Algebra to solve the equation.
when x = 1 , Y = 135 *x
When x 2 , Y = 135 *2
Formula you could apply to go for break even y = 135*x
Bicycle store pays about $4200
Algebra used for every business and working to make easy task.
It takes about 31 bicycle a month to get into break even.
Every store needs break even to not incur lost.
Break even point is equilibrium between income and expenses.

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3 years ago

Ciny bought s car for 21, 33. A few years later, she sd the car for 19, 700. Find the percent of change in the value

Lina20 [59]

823.582% increase between the initial price and the current price.

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3 years ago

11.Write the equations of linear and exponential functions that pass through the points (0,9) and (1,3)

Schach [20]

9514 1404 393

Answer:

y = -6x +9

y = 9·(1/3)^x

Step-by-step explanation:

In each case, the y-intercept is 9.

Linear

The slope is rise/run = (3-9)/(1-0) = -6, so the equation is ...

y = mx + b . . . . . . . slope m, intercept b

y = -6x +9

Exponential

The ratio of value at x=1 to that at x=0 is 3/9 = 1/3. That is the "growth factor," so the equation is ...

y = 9·(1/3)^x

7 0

3 years ago

Given the formula k = Lmn what is the formula for m

Luden [163]

$\sf Solve \ for \ m \\ \\ k = lmn \\ \\ Flip \ equation \\ \\ lmn = k \\ \\ Divide \ both \ sides \ by \ ln \\ \\ \dfrac{lmn}{ln} = \dfrac{k}{ln} \\ \\ m = \dfrac{k}{ln}$

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4 years ago

Read 2 more answers

Kevin buys four folding chlairs. Beach chair costs $13.50. the sales tax is 6.5%. what is the amount of sales tax for Kevin's pu

frozen [14]

Answer:

Amount of sales tax = $3.51

Step-by-step explanation:

$13.50 x 4 = $54

convert 6.5% to 0.065 ===> 6.5/100 = 0.065

$54 x 0.065 = $3.51

4 0

3 years ago