Answer:
The ratio is 5:4 and the only one that fits is 25,20 so that's the answer.
Step-by-step explanation:
Answer:
Option B, y intercept of -4
Step-by-step explanation:
Option A is incorrect because you cannot use the slope because you don't know where or what point to start from.
<em>Option B is correct because the first thing you do is plot the y intercept of -4 and then you find the slope of the line.</em>
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Option C is incorrect because you cannot use the slope because you don't know where or what point to start from.
Option D is incorrect because that is the wrong y intercept.
Answer: Option B, y intercept of -4
Answer:
C. 3.4
Step-by-step explanation:
We need to find expected value, which is essentially the value that we expect to get based on the amount of each "thing" at hand.
Here, we have 4 multiple-choice questions worth 3 points each and 2 true/false questions worth 1 point each. Each multiple-choice question has 5 possible answers, so the probability that you get that multiple-choice question correct is 1/5. Similarly, each true/false question has 2 possible answers, so the probability that you get that question right is 1/2.
Expected value, denoted by E(x), has the formula:
E(x) = ∑ xp(x), where x is the number of points you get per problem here and p(x) is the probability of getting the problem correct
E(x) = 4 * 3 * (1/5) + 2 * 1 * (1/2) = 12/5 + 1 = 17/5 = 3.4.
The answer is thus C.
Answer: 31 degrees
Step-by-step explanation: Angle ABD and BDC are alternate interior angles, meaning that they are congruent. Therefore, the measure of angle ABD is 31 degrees.