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Yuliya22 [10]
3 years ago
7

If two lines intersect , then they intersect in exactly one

Mathematics
1 answer:
GenaCL600 [577]3 years ago
6 0

Answer:

point?

Step-by-step explanation:

is this a question or a statement

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qwelly [4]
You could just use 3.14 or 22/7
6 0
3 years ago
Write and graph exponential functions to model the number of students at school A and at school B as a function of number of yea
Westkost [7]

Answer:

2^8 2x2x2x2x2x2x2x2=256

Step-by-step explanation:

8 0
3 years ago
A 4. 9-mm-wide swimming pool is filled to the top. The bottom of the pool becomes completely shaded in the afternoon when the su
cestrela7 [59]

The depth of the swimming pool that is filled to the top is; 4 m

<h3>Snell's Law</h3>

I have attached a schematic diagram showing this question.

The correct width of the pool is 4 meters. Thus; w = 4 m

Incident Angle; θ₁ = 20°

A right angle is 90° and so the angle θ₂ is calculated from;

θ₂ = 90° - θ₁

θ₂ = 90° - 20°

θ₂ = 70°

We can use snell's law formula to find θ₃.

Thus;

n₁sinθ₂ = n₂sinθ₃

where;

n₁ is refractive index of air = 1

n₂ is refractive index of water = 1.33

Thus;

1*sin 70 = 1.33*sin θ₃

sin θ₃ = (sin 70)/1.33

Solving this gives;

θ₃ = 44.95°

By usage of trigonometric ratios we can find the depth of the pool using;

w/d = tan θ₃

Thus;

d = w/(tan θ₃)

d = 4/(tan 44.95)

d ≈ 4 m

Read more about Snell's Law at; brainly.com/question/10112549

6 0
2 years ago
Jack plays on a basketball team after school third day of the month he babysits every seventh day of the month how many times du
Alex787 [66]
Great question!
If you draw a calendar see attachment for mine.you will see that the dates for Basketball are 
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and the dates for Babysitting are
7,14,21,28

There would only be a conflict on the 21st! So the answer is 1 time! 

4 0
3 years ago
How do I answer this math problem?
olchik [2.2K]
When exponents are separated by a parenthesis it means you need to add them. Because the parenthesis is around the entire number then you raise everything inside the parenthesis to the outside exponent. Then anything raised by 0 as an exponent is automatically 1.


You think of this visually as 3a*3a*3a= 27a^9 is your answer


8 0
3 years ago
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