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valentinak56 [21]
3 years ago
10

If you place a 39-foot ladder against the top of a 23-foot building, how many feet will

Mathematics
2 answers:
Alborosie3 years ago
4 0

Answer:

31.5 ft

Step-by-step explanation:

Use the Pythagorean Theorem

a² + b² = c²

Plug in the knowns

a² + 23² = 39²

Subtract 23² from both sides

a² = 39² - 23²

a² = 1521 - 529

a² = 992

Take the square root of both sides

a = 31.496031496

Rounded

a = 31.5 ft

Hoochie [10]3 years ago
3 0

Answer:

22.2

Step-by-step explanation:

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Simplify 16^x = 0.5​
Greeley [361]

Answer:

x = -1/4

Step-by-step explanation:

3 0
2 years ago
A book has 500 pages numbered 1,2,3 and so on. How many times does the digit 1 appear in the page numbers?
elena-14-01-66 [18.8K]

Answer:

200

Step-by-step explanation:

This book has 500 pages in total.

We should split up the place values.

1 - 9

One only appears once.

1

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One appears 11 times.

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One only appears 8 times.

1 + 11 + 8

Add:

1 + 11 + 8

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Since the same is for  200-299, and so on. Let us add twenty four times.

20 * 4

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Looking back to 100-199, there are 120 ones.

Add:

120 + 80

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4 0
3 years ago
The period of a periodic function is 8 s . How many cycles does it go through in 30 s ?
kap26 [50]

The number of cycles of the periodic function is 3.75 cycles if the period of a periodic function is 8 s option (G) 3.75 is correct.

<h3>What is a function?</h3>

It is defined as a special type of relationship, and they have a predefined domain and range according to the function every value in the domain is related to exactly one value in the range.

It is given that:

The period of a periodic function is 8 s

From the question:

8n = 30

n = 30/8

n = 3.75 cycles

Thus, the number of cycles of the periodic function is 3.75 cycles if the  period of a periodic function is 8 s option (G) 3.75 is correct.

Learn more about the function here:

brainly.com/question/5245372

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7 0
1 year ago
12.
Genrish500 [490]

Answer:

I'm pretty sure the answer is D

4 0
3 years ago
(3,4) (3,5) (3,6) y as a function of x
Nezavi [6.7K]

Answer:

Step-by-step explanation:

y is NOT a function of x because there is not a unique y for each x.

The vertical line through these three points is

x = 3

6 0
3 years ago
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