Answer:
23 stones are going to be needed
Step-by-step explanation:
Answer:
881.5 meters.
Step-by-step explanation:
The horizontal plane at the level of wai-kin's eyes divide the height of the cliff into two parts. Let the upper part be represented by x and the lower part be represented by y.
The height of the cliff = x + y
Applying the appropriate trigonometry functions.
To determine the value of x;
Tan θ = 
Tan
= 
⇒ x = 490 x Tan 
= 490 x 0.7265
= 355.985
x = 356 meters
To determine the value of y;
Tan θ = 
Tan
= 
⇒ y = 490 x Tan 
= 490 x 1.0724
= 525.476
y = 525.5 meters
Therefore,
The height of the cliff = x + y
= 355.985 + 525.476
= 881.461
The height of the cliff is 881.5 meters.
Answer:
3^4
Step-by-step explanation:
Simplifying an expression with expression with exponents:
If they are dividing, we keep the base and subtract the exponents. For example:

In this question:
Using the probability concept, it is found that there is a
probability that “Relaxation Through Mathematics” is first to review.
A probability is given by the <u>number of desired outcomes divided by the number of total outcomes</u>.
In this problem:
- There is a total of k documents to be reviewed, hence
. - Of those documents, 1 is named “Relaxation Through Mathematics”, hence

The <em>probability </em>is:

A similar problem is given at brainly.com/question/24483829