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
mina [271]
3 years ago
5

A ramp with a one meter distance from edge to edge reaches a height of 0.643 meters. What is the value of the acute angle?

Mathematics
1 answer:
natita [175]3 years ago
4 0

The value of the acute angle is 40°

Step-by-step explanation:

Let the angle be 'θ'

Length of the ramp = 1 m

Height = 0.643 m

To find :

The angle of elevation.

we can use sine to find the angle of elevation.

sin θ = 0.643/1

sin θ = 0.643

0.643 = sin 40°

sin θ = sin 40°

So, θ = 40°

The angle of elevation is 40°

You might be interested in
Can someone help me I am really confused
Inga [223]
It's don't have equal between that equation ?
5 0
3 years ago
Read 2 more answers
What is the value of x?
ryzh [129]

Answer:

Step-by-step explanation:

The top triangle is similar to the whole triangle because of AAA

Then we know that the corresponding sides are similar

9/81=(3x-20)/(3x-20+56)

1/9=(3x-20)/(3x+36)

cross multiply

9(3x-20)=3x+36

27x-180=3x+36

24x=216

x=9

8 0
3 years ago
Look at this set of 10 numbers:
Natalija [7]

Step-by-step explanation:

mean when 82 is present

=<u>8</u><u>2</u><u>+</u><u>4</u><u>4</u><u>+</u><u>2</u><u>7</u><u>+</u><u>9</u><u>6</u><u>+</u><u>6</u><u>9</u><u>+</u><u>8</u><u>0</u><u>+</u><u>7</u><u>5</u><u>+</u><u>8</u><u>3</u><u>+</u><u>5</u><u>6</u><u>+</u><u>9</u><u>8</u>=<u>7</u><u>1</u><u>0</u>

10 10

= 71

mean when 42 is present

=<u>4</u><u>2+44+27+96+69+80+75+83+56+98</u>=<u>6</u><u>7</u><u>0</u>

10 10

=67

therefore the mean decreases with

= 71 - 67 = 4

4 0
2 years ago
If a coin is tossed 3 times, and then a standard six-sided die is rolled 4 times, and finally a group of four cards are drawn fr
PSYCHO15rus [73]

Answer:

67,365,043,200

Step-by-step explanation:

A coin toss has 2 possible outcomes.  A coin tossed 3 times has 2³ = 8 possible permutations.

A standard die has 6 possible outcomes.  A die rolled 4 times has 6⁴ = 1296 possible permutations.

The number of ways 4 cards can be chosen from a deck of 52 without replacements is 52×51×50×49 = 6,497,400.

The total number of possible outcomes is:

8 × 1296 × 6,497,400 = 67,365,043,200

3 0
4 years ago
A student buys
garik1379 [7]

Answer: 10$

Step-by-step explanation:

164 - 4x16 = 100

6 + 4 = 10

100 : 10 = 10

7 0
3 years ago
Other questions:
  • What is the solution to this equation?<br> 4x + x - 15 + 3 - 8x = 13
    5·1 answer
  • Hey can you please help me posted picture of question :)
    15·2 answers
  • Find the real solution<br><br> x^4-x^3+2x^2-4x-8=0
    6·1 answer
  • im not sure what im doing wrong? i feel like i did it correctly but it says i didnt so i want to make sure​
    11·1 answer
  • This is another one yet do i not get? help!
    14·1 answer
  • What is 1212% expressed as a fraction?<br><br><br> 325<br> 18<br> 625<br> 14
    8·2 answers
  • A line segment has endpoint j(2,4) and l(6,8).the point k is the midpoint of jl.what is an equation of a line perpendicular to j
    5·1 answer
  • There are 4 trucks for every 5 cars in a parking lot. If there are 80 cars, how many trucks are in the parking lot?
    7·1 answer
  • A basketball player averages 22.5 points scored per game with a standard deviation of 6.2 points. In one game, the number of poi
    12·2 answers
  • A trapezoid has bases measuring 5cm and 9cm, and an area of 42cm. Find the height
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!