Answer: b
Step-by-step explanation:
In the last question, you wrote on a second equation "13x ...." kkk
Let's go:
We have to check each one answer in the following system:
x - 2y = 7
3x + 7y = 8
I can use the substituition method to solve this system...
x = 7 + 2y
3x + 7y = 8
3(7 + 2y) + 7y = 8
21 + 6y + 7y = 8
13y = 8 - 21
13y = -13
y = -1
x = 7 + 2.(-1)
x = 5
Finally, the correct answer is the second one (letter b).
Answer: 1000
Step-by-step explanation: you do 4% multiplied by x = 40
Multiplying both sides by 100 and dividing both sides by 4,
we have x = 40 × 100/4
40×100÷4
And you get 1000
⇨ The value of this <u>simplified expression</u> = -4096/1 or -4096.
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- To solve this expression, just multiply the power base by how many times indicate the exponent, and then divide the numerator and denominator of the fraction by the same number.
Power or potentiation is a multiplication in equal factors, where there are <em>terms responsible</em> for obtaining the final result. An potency is given by
The terms of a power are:
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- Base
- Exponent
- equal factors
- power
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✏️ <u>Resolution/Answer</u>:

- Multiply the powers of the numbers at numerator of the fraction, with the base <em>being multiplied by how many times</em> to indicate the exponent.







- <em>Multiply </em>the power at denominator of the fraction:



- <em>Multiply </em>the numerator numbers together:




- Simplify the fraction by number 16:



- So this expression in its simplified form = -4096/1 or -4096.

★ Hope this helps! ❤️
It would be 18.75 because if you put it into a mixed number then multiply by 5 you get 18.75
Answer:

Step-by-step explanation:
Given

Required
Determine the period
A sine function is represented as:

Where

By comparing:
and 

So:

So, we have:



Hence, the period of the function is 