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3 years ago

Please answer please

Mathematics

1 answer:

LUCKY_DIMON [66]3 years ago

6 0

Answer: 53

Step-by-step explanation: We can use any of the trigonometric functions to find the angle. I'll just use sin. Sin-1(48/60) = 53

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Out of 60 problems assigned last week for homework, Steve solved correctly 54 problems. What is his score for this homework?

dybincka [34]

90 percent because 54 divided by 60 = 90

4 0

3 years ago

A large waterfall is managed so that a minimum of 110,000 cubic feet of water per second sec) fow over the fals. Find the minimu

Liula [17]

Answer:

9.504×10⁹ ft³

Step-by-step explanation:

We are told the amount of water in cubic feet per second. We need it in cubic feet per hour, then multiply that amount by 24 to get the cubic feet of water that falls in a 24-hr period. Converting the seconds to hours:

$\frac{110,000ft^3}{sec}*\frac{3600sec}{1hr}$

The seconds label cancels out leaving us with a label in cubic feet per hour. That number, NOT in scientific notation (we'll do that at the end) is:

396000000 cubic feet per hour.

Multiply that by 24 and you get:

9504000000 cubic feet or

9.504×10⁹ cubic feet

5 0

3 years ago

A real estate agent needs to estimate the average value of a residential property of a given size in a certain area. The real es

alexira [117]

Answer:

Follows are the solution to this question:

Step-by-step explanation:

$95 \% \$ the confidence level for z:

$\alpha = 1 - 95 \% \\\\$

$= 1 - 0.95 \\\\ = 0.05$

$\to \frac{\alpha}{2} = \frac{0.05}{2} = 0.025\\\\\\to Z \ \frac{\alpha}{2} = Z_{0.025} = 1.96$

Calculating the Margin of error:

$E = Z\ \frac{\alpha}{2} \times ( \frac{\sigma}{\sqrt{n}})$

$= 1.96 \times ( \frac{5000}{\sqrt{\sqrt{100}}})\\\\= 980$

The population means estimate a 95 % confidence interval is:

$\to \bar{x} \frac{+}{-} E\\\\ = \$ 90000 \frac{+}{-} 980$

5 0

3 years ago

I need help with my Clock

anyanavicka [17]

5 -> 15

6 -> 20

7 -> 25

8 -> 30

9 -> 35

10 -> 40

then in ones:

after 41 would be 42 and 43

the elapsed time would be 43 minutes :)

hope this helps :)

8 0

3 years ago

Which is equivalent to 1.04?

Elodia [21]

Answer:

104/100 is equivalent to 1.04

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers