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
fiasKO [112]
2 years ago
11

Mohal leans a 20-foot ladder against a wall so that it forms an angle of 72° with the

Mathematics
1 answer:
kifflom [539]2 years ago
7 0

Answer:

sin(72°)=x÷20ft.

sin(72°)×20ft.= 19ft 252 inches

the ladder reach 19ft 252 inches tall on the building.

Step-by-step explanation:

You might be interested in
Help me on Algebra it may look easy but to me it is hard
Zina [86]
It’s a 90 degree clockwise rotation as coordinates become (y,-x).
8 0
2 years ago
What is f(-x), if f(x)=2|x|+3x
a_sh-v [17]
F(-x) = 2/-x/ + 3(-x) = 2/x/ - 3x;
6 0
3 years ago
Which of the following is the best graph of the point below
Svet_ta [14]
There’s no graph belowww
3 0
2 years ago
Because of a virus introduced into a bacterial culture, the population of the bacteria decreasedfrom 3000 to 1000 in 50 minutes.
Mamont248 [21]

Answer:

208

Step-by-step explanation:

Given that;

Given that;

y= a(1 - b)^t

Where;

wherein y is the final amount, a is the original amount, b is the decay factor, and x is the amount of time that has passed.

To obtain the constant b,

y= ae^-bt

Substituting values;

1000 = 3000 e^-b(50)

1000/3000 = e^b(50)

0.33 = e^b-(50)

ln (0.33) = ln(e^b(-50))

-1.1 = -50b

b= 1.1/50

b= 0.022

After two hours or 120 minutes;

y= 3000(1 - 0.022)^120

y= 207.8661772

y= 208

8 0
2 years ago
Complete the explanation of the procedure that can be used to solve 5[3(x + 4) − 2(1 − x)] − x − 15 = 14x + 55. Then solve the e
Debora [2.8K]

Answer:

x =  2.

Step-by-step explanation:

5[3(x + 4) − 2(1 − x)] − x − 15 = 14x + 55

5[3x + 12 - 2 + 2x] - x - 15 = 14x + 55

5[5x + 10] - x - 15 = 14x + 55

25x + 50  - x - 15 = 14x + 55     Now we subtract 14x from both sides:

25x + 50  - x - 15  - 14x = 14x - 14x + 55

10x + 50 - 15 = 55 Now we subtract  50, add 15 to both sides:

10x + 50 - 50 - 15 + 15 = 55 - 50 + 15    

10x =  20

x = 2.

8 0
2 years ago
Other questions:
  • Which landforms are not classified into a major biome?
    10·1 answer
  • How do I factor out the gcf
    12·1 answer
  • A county in North Carolina spans 532 square miles. The population density of deer in the county is 11 deer per square mile. How
    9·2 answers
  • Given f(x)=x2−2x−2, completing the square to solve for the function's zeros yields which of the following? A. (x−1)2=−2 B. (x−2)
    8·1 answer
  • A spinner has 7 equal sections which are numbered from 1-7. Which of the following are complementary events? (check all that app
    7·2 answers
  • Select three ratios that are equivalent to 5:2
    11·1 answer
  • What is the volume of a rectangular prism<br> 8 inches long, 5 inches wide, and 2 inches high?
    15·1 answer
  • Tom and Jerry both earn the same monthly salary. Each month: Tom saves 35% of his salary. Jerry spends of his salary and saves t
    8·1 answer
  • What value of v makes the equation 3.1v + 1 = 2.5v – 3.5 true
    7·2 answers
  • 4.<br> Greta traveled at a speed of 55 Miles per hour. How far did she travel in 6.5 hours?
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!