In a class of 20 students, 40% are boys. 25% of boys and 50% of the girls wear glasses. How many students wear glasses?
1 answer:
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Answer with Step-by-step explanation:
We are given that
P(A)=0.4 and P(B)=0.7
We know that
We know that
Maximum value of =1 and minimum value of
=0
It is not possible that is equal to 1.1
Multiply by (-1) on both sides
Again,
Multiply by (-1) on both sides
Hence,
ANSWER
EXPLANATION
We want to find the absolute value function for the line in blue.
The general form of an absolute value function is:
where (h, k) = vertex
From the line, the vertex of the graph in blue is:
To find a, we have to pick a point (x, y) on the line and input it into the general function.
Let us pick (2, 1).
Therefore, we have:
Therefore, the absolute value function is:
Answer:
B. False
Step-by-step explanation:
According to pythagorean theorem, for this to be a right triangle, the sum of square of the length of the two legs must equal square of the length of the hypotenuse (longest side).
So should equal
- <em>We also know that
</em>
Hence, , and
They ARE NOT EQUAL, so the triangle is NOT a right triangle.
Since 1 pound is $3.09, 4.5 pounds will be:
It says to round to nearest hundredth, so your answer is $13.91.