A 20-foot ladder is leaned against a wall. If the base of the ladder is 8 feet from the wall, how high up on the wall will the ladder reach? Round the answer to the nearest tenth.A. 21.5
B. 18.3
C. 15.7
D. 19.1

I keep getting 18.3 as my answer, but I feel like I'm doing something wrong. Can somebody please explain and show me how to do this correctly? I don't think I'm doing it right :(

Answers

Answer 1
Answer: You use Pythagorean theorem to solve it and you get 18.3. Just look at the picture to see how i solved it

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PLEASE HELP IF YOU KNOW THIS!!!!!

If someone build a house for 50 years how many months did it take to complete

Answers

Answer: 600

Step-by-step explanation:  12 months in one year. 12x50=600 months

Answer:

600 months

Step-by-step explanation:

In 1 year there are 12 months, so we take 50 (the years) and multiply that by 12

50x12=600 and we fact check by 600÷12=50. It takes 600 months to build the house over 50 years.

Which shows the expression below simplified?

0.42 + (3.5 × 10-2)

Answers

Answer: 33.42

Step-by-step explanation: 0.42 + (35 - 2) —> 0.42 + 33 = 33.42

Answer:

Step-by-step explanation:

50

What is the best description of the relation in Item 2? a function that is one-to-one a function that is many-to-one a function that is one-to-many a relation that is not a function​

Answers

Answer:

One input(x-value) can only have one output(y-value) in order to be a function.

Step-by-step explanation:

Final answer:

One-to-one functions yield unique outputs for each input. Many-to-one functions can yield the same output for different inputs. The term one-to-many does not typically apply to functions, and a relation is not a function if one input yields multiple outputs. To answer the question specifically about Item 2, additional information or a visual representation is needed.

Explanation:

To determine the type of a function or relation, we need to understand what it means for a function to be one-to-one, many-to-one, one-to-many, or not a function.

A function is one-to-one (also known as injective) if every element of the range corresponds with exactly one element of the domain. In simpler terms, no two different inputs (x-values) yield the same output (y-values).

A function is many-to-one if there are at least two elements in the domain associated with the same value in the range. This means, two or more different inputs (x-values) can yield the same output (y-value).

The term one-to-many typically does not apply to functions in the strictest mathematical sense. Functions by definition associate one, and only one output with each input.

Lastly, a relation is not a function if at least one element in the domain is associated with more than one value in the range. That is, there is atleast one input (x-value) that yields more than one output (y-value).

Without further specific information or visual representation (like a graph) of Item 2, it's difficult to definitively state what type of relation or function it is.

Learn more about Types of Functions here:

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Can someone plz help me wit this?

Answers

Answer:

11. True

12. false

13. True

14. False

15. true

16. True

sry if number 15 & 16 are wrong,

17. Line AE, Line FE, Line HE

18. Plane ABCD

19. Plane ABCD , Plane CDHG

20. Plane CDHG, Plane ABCD, Plane ADHE

hope this helps :)

What is 8.546 rounded to the nearest tens?

Answers

Answer:

10

Step-by-step explanation:

In this problem we need to round off 8.546 to the nearest tens. 8 is in ones place, 5 is in tenths place, 4 is in hundredths place and 6 is in thousandth place.

8 falls between 5 and 10 on the number line. It is less than 5 and more than 10. When it is rounded off to nearest tens it can be given by 10.

To round 8.546 to the nearest tens, the answer is 10.

To round 8.546 to the nearest tens, you need to look at the digit in the ones place, which is 6.

Since 6 is greater than or equal to 5, you round up the tens digit, which is 4.

Therefore, the final answer is 10.

Learn more about rounding here:

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I can’t find the answer tried twice probably easy for others

Answers

Answer: y=-x-2

Slope intercept form is written as y=mx+b, with m being the slope and b being the y intercept.

The slope is negative one. To find the slope, use the formula y1-y2/x1-x2. When you substitute, you may get -4-1/2-(-3). When you solve it, you get -5/5, or -1.

To find the y intercept, look where the line crosses the y axis (vertical line). In the graph, it crosses as -2. Substitute these numbers into the equation and you get y=-1x-2 which can be simplified to y=-x-2.