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Question
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3x = 0.5x²
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Take out common factor , i.e. x
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3x = 0.5x²
3x - 0.5x² = 0
x(3 - 0.5x) = 0
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Use the Zero Product Property to solve for x
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x(3 - 0.5x) = 0
x = 0 or 3 - 0.5x = 0
x = 0 or 0.5x = 3
x = 0 or x = 3 ÷ 0.5
x = 0 or x = 6
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Answer: x = 0 or 6 (Answer D)--------------------------------------------------------------------
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Question
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0 = 5x² - 2x + 6
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Use Quadratic Formula
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Answer:
I think its A but i could be wrong.
Step-by-step explanation:
Hope this helps. ~ <em>Abby</em>
3x3= 9 which is area of 1 square
In the shape there is total of 11 squares
So 9x11= 99
Answer:
Step-by-step explanation:
Top and bottom
Area = L*W
L = 4
W = 2
Area = 4 * 2 = 8
But there are two of them (2 * 8) 16
Left and right
Area = L * W
L = 3
W = 2
Area = 2 *3 = 6
But there are two of them 12
From back
L*W = 4*3
But there are two of them <u> 24</u>
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Total 52
Answer:
There is a 0.058% probability that this student will pass the examination.
Step-by-step explanation:
For each question, there are only two possible outcomes. Either it is correct, or it is wrong. This means that we can solve this problem using the binomial probability distribution.
Binomial probability distribution:
The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.
In which is the number of different combinatios of x objects from a set of n elements, given by the following formula.
And p is the probability of X happening.
In this problem
There are 12 questions, so .
The student guesses each question. There are five possible answers, only one which is correct, so .
What is the probability that a student who guesses at random on each question will pass the examination?
This is
So
There is a 0.058% probability that this student will pass the examination.