1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Akimi4 [234]
3 years ago
7

(someone please answer these. im literally not turning in my test until someone does. ) 1 a ladder is leaning agisnt a building

so that the top of the ladder is touching the roof line. the bottom of the ladder is 8 feet from thr building and thr ladder is 17 feet long. how far is the roof line from the ground 15 ft, 9ft 18.8 ft 25ft
2 what is the value of x ?

Mathematics
1 answer:
dezoksy [38]3 years ago
7 0

Answer:

1. 15ft

2. 12

Step-by-step explanation:

1. See the attachment below showing the right triangle formed by the ladder and the building.

Let x represent how far the roof line is from the ground.

Thus, using Pythagorean Theorem, x can be solved as follows:

x² = 17² - 8²

x² = 225

x = √225

x = 15ft

2. Given:

Reference angle = 45°

x = Hyp

6√2 = opposite

Using trigonometric ratios formula, thus:

sin(45) = \frac{6\sqrt{2}}{x}

Multiply both sides by x

sin(45)*x = 6\sqrt{2}

Divide both sides by sin(45)

x = \frac{6\sqrt{2}}{sin(45)}

x = \frac{6\sqrt{2}}{\frac{1}{\sqrt{2}}} (common value of sin(45) = 1/√2)

x = 6\sqrt{2} \times \frac{\sqrt{2}}{1}

x = 6\sqrt{2 \times 2}

x = 6 \times 2

x = 12

You might be interested in
plzzzzz help me I can fail algebra. on Sunday, Sean ran 5/7 of the distance he ran on Thursday (9/10). fill in the number of mil
ohaa [14]

Answer:

9/14

Step-by-step explanation:

You multiply the two fractions. So 5/7*9/10, you just multiply across. This would give you 45/70. Then, after simplifying, this fraction is 9/14. So, Sean ran 9/14 of a mile on Sunday. Hope this helps, Sorry if im wrong!!

7 0
4 years ago
Date 3) Paula baked two batches of chocolate chip cookies. She used 3 cups of flour for the first batch of cookies and 2 cups fo
Digiron [165]

Answer:

3/2

Step-by-step explanation: I took the test

4 0
3 years ago
To celebrate the first day of winter, Lin is putting magnets on some of the lockers (pre-COV ID of course). There are 100 locker
NikAS [45]
Two lockers, 35 and 70
7 0
3 years ago
Read 2 more answers
What is -3/8 divided by 7/12<br> A. -32/7<br> B.-14/9<br> C. -9/14<br> D. -7/32
Helga [31]
To divide fractions, you flip the second one and multiply them so it would be:
(-3/8) / (7/12)
-3/8 * 12/7
-36/56
This can be simplified to :
-9/14
Because you divide both the numerator and denominator by 4.

Hope this helps :)
5 0
4 years ago
4. Simplify V5+<br>9 please can someone help me​
antoniya [11.8K]

Answer:

Mind sending a picture or finish typing it

It will help alot to understand

5 0
3 years ago
Read 2 more answers
Other questions:
  • What is a scale factor?
    6·1 answer
  • We need a rock garden with a perimeter of 12 feet and an area of 8 square feet
    10·1 answer
  • Find the linear approximation of the function g(x) = 3 1 + x at a = 0. g(x) ≈ Use it to approximate the numbers 3 0.95 and 3 1.1
    11·1 answer
  • A jar contains 40 marbles. 12 are green, 14 are blue and the rest are red. What is the probability of picking a green marble?
    14·1 answer
  • Juan has gained weight since last year. He now weighs 8 pounds more than he had originally. Rashod lost 20 pounds from his origi
    8·1 answer
  • To win a basketball game , one team scored 106 points. They made a total of 39 two-pointers and three-pointers.How many of the b
    6·1 answer
  • There were 4 students at the football game. They had 6 sodas to share
    11·2 answers
  • Express the inequality a &lt; -0.18 using interval notation
    8·1 answer
  • does anyone know where i can get all the answers to the Holt, Rineheart and Winston geometry text book?
    7·1 answer
  • Workers need to know the area of a park to determine how much grass seed to order. A worker drew a sketch of the park to find it
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!