Answer:
He got 5 questions wrong so he scored a 75%
Step-by-step explanation:
I hope this helps :)
Using proportions, it is found that the value of a is of 3.
<h3>What is a proportion?</h3>
A proportion is a fraction of a total amount, and the measures are related using a rule of three.
In this problem, a 180º angle has a measure of
radians. What is the measure of a 540º angle? The <em>rule of three</em> is given by:
180º -
rad.
540º - x
rad.
Applying cross multiplication:
180x = 540.
x = 540/180 = 3.
The value of a is of 3.
More can be learned about proportions at brainly.com/question/24372153
Answer:
3x - 1
Step-by-step explanation:
Note that you are adding the parenthesis together. In this case, you can disregard the parenthesis. Combine like terms (terms with the same amount of variables):
2x + 1x - 3 + 2
(2x + 1x) + (-3 + 2)
3x + (-1)
3x - 1
3x - 1 is your answer.
~
Answer:
10
Step-by-step explanation:
This is a right triangle, so we can use the Pythagorean theorem
a^2+b^2 = c^2 where a and b are the legs and c is the hypotenuse
9^2 + (sqrt(19))^2=c^2
81+19 = c^2
100 = c^2
Take the square root of each side
sqrt(100) = sqrt(c^2)
10 = c
The hypotenuse is 10
Answer:

Step-by-step explanation:
the information we know about the shape of the stick of butter:



The formula for the volume of a rectangular prism is:

we find the volume by multiplying ll the measurements of the stick.
So we substitute the values to find the volume and we get the following:

the volume of the stick of butter is 