MATHEMATICS HIGH SCHOOL

How much is 2/3 of 9 marbles?

Answers

Answer 1

Answer: 6 marbles
Explanation: Take 9 and ÷ by 3, then take 2 and multiply it by 2.

Answer 2

Answer:

Answer:

Step-by-step explanation:

First divide 9 by 3 to get 3, then multiply 3 by 2 to get 6.

Trust me on this, also can I have brainiest please?

Hope you do well! :D

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A lake in East Texas was stocked with 3,000 trout in the year 2000. The number of fish in the lake is modeled by f(x) = 3000 + 100x, where x represents the number of years after 2000 until 2016. Which of the following is the most reasonable domain for the function?

Answers

The domain of a function is the set of input values the function can take.

The reasonable domain of the function is [0,16]

From the question, we understand that x represents the number of years after 2000 until 2016.

In 2000, the value of x is 0
In 2016, the value of x is 16

Hence, the reasonable domain of the function is [0,16]

Answers

Answer:

They are same side interior angles. Angle A measures 55°.

Step-by-step explanation:

Answer:

A They are same side interior angles. Angle A measures 55°.

When you graph an inequality, you used a closed dot when you use which
symbols?

Answers

You should only use a closed dot for the symbols ≤ and ≥.

When you should use a closed dot?

There are two types of dots used when graphing inequalities, closed and open.

We use closed dots when the value where the dot is, is a solution.
We use open dots when the velue where the dot is, is not a solution.

So, for exampe in:

x > 3.

We would put an open dot at 3, because the value x = 3 is not a solution, but all the values at the right of the 3 are solutions.

In the other hand, for:

x ≥ 3

Now 3 is in fact a solution, so here we should use a closed dot.

Then, answering the question.

"When you graph an inequality, you used a closed dot when you use which symbols?"

The ≤ and ≥ symbols.

If you want to learn more about inequalities, you can read:

brainly.com/question/11234618

You use a closed dot with the greater than or less than with the line under the symbol or the greater than or equal to or the less than or equal to symbols. The line indicates a closed dot.

Which sum or difference identity would you use to verify that cos (180° - q) = -cos q?

Answers

Answer:

$\cos (a-b)=\cos a \cos b+\sin a \sin b$

Step-by-step explanation:

Given : $\cos (180^(\circ)-q)=-\cos q$

We have to write which identity we will use to prove the given statement.

Consider $\cos (180^(\circ)-q)=-\cos q$

Take left hand side of given expression $\cos (180^(\circ)-q)$

We know

$\cos (a-b)=\cos a \cos b+\sin a \sin b$

Comparing , we get, a= 180° and b = q

Substitute , we get,

$\cos (180^(\circ)-q)=\cos 180^(\circ) \cos (q)+\sin q \sin 180^(\circ)$

Also, we know $\sin 180^(\circ)=0$ and $\cos 180^(\circ)=-1$

Substitute, we get,

$\cos (180^(\circ)-q)=-1\cdot \cos (q)+\sin q \cdot 0$

Simplify , we get,

$\cos (180^(\circ)-q)=-\cos (q)$

Hence, use difference identity to prove the given result.

cos (180° - q) = -cos q
First you would use the sum and difference formula of
cos(a – b) = cos(a)cos(b) + sin(a)sin(b) because you have a difference inside the parentheses for cosine.

Hope this helps.

Simplify (-3)⁴x(7)⁴