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3 years ago

What is the answer I really don’t know what it is

Mathematics

2 answers:

grin007 [14]3 years ago

7 0

Answer:

Step-by-step explanation:

Use Pythagoras theorem

a = √ 8² + 5² = 9.4

b = √ 17² - 12² = 12.0

lutik1710 [3]3 years ago

3 0

Answer: a=9.4 b=12.0

Step-by-step explanation:

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Identify the percent of change as an increase or a decrease. 54 to 38v=

alexandr402 [8]

Answer:

-34.48275862068966

Step-by-step explanation:

The calculator said so, isn't that all that matters?

3 0

3 years ago

Is It a Function?

inn [45]

For something to be a function there can only be one x value for every y value (meaning x can’t repeat). To see if the graphs are functions you need to perform the vertical line test. This is where you scan an imaginary line across the graph and if the line passes through two points at the same time, that graph is not a function. This would mean that for the graphs, only graph B is a function. For the mapping part, if an x value has more than two lines attached to it, it’s not a function. This means that mapping A is a function because it only had one line for every x value whereas mapping B had x value 5 with two lines instead of one. For the table, it’s a function if the x value isn’t repeated. This means that table B is a function because no x value repeats whereas in table A the x value 2 repeats twice. That leaves graph A, mapping B, and table A as ‘not a function’. Hope this helped.

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4 years ago

When twotwo basketball players are about to have a free-throw competition, they often draw names out of a hat to randomly selec

erica [24]

There are 2! = 2 ways to arrange the names of two basketball players in a hat.

Since, the are going to throw alphabetically, there is 1 way for the names to be arranged alphabetically.

Therefore, <span>the probability that they shoot free throws in alphabetical order is $\frac{1}{2} = 0.5$ </span>

6 0

3 years ago

Please answer really fast.

sweet [91]

The answer is A. Use distance formula.

5 0

3 years ago

Read 2 more answers

The moon forms a right triangle with the Earth and the Sun during one of its phases, as shown below:

mezya [45]

Answer:

The scientist can calculate the distance between the moon and the sun using trigonometric ratio of Cosine.

Step-by-step explanation:

We have been given that the moon forms a right triangle with the Earth and the Sun during one of its phases.

We can see from our graph that the distance between Sun and Moon is the hypotenuse of the right triangle as it is the opposite side of right angle formed with the Earth.

The distance between Earth and Sun (y) is the adjacent side for our angle x degrees.

Since we know that the cosine of an angle is the trigonometric ratio of the adjacent side to the hypotenuse of a right triangle containing that angle.

$\text{Cos}=\frac{\text{Opposite}}{\text{Hypotenuse}}$

$\text{Cos}(x^o)=\frac{y}{\text{The distance between Sun and Moon}}$

$\text{The distance between Sun and Moon}=\frac{y}{\text{Cos}(x^o)}$

Therefore, using trigonometric ratio Cosine, the scientist can calculate the distance between the Moon and the Sun.

4 0

3 years ago