Answer:
HELP PLEASE
Step-by-step explanation:
Which of the following equations has an axis of symmetry with the equation x=1.5?
A. y=2x2−6x−1
B. y=2x2−3x+1
C. y=x2+6x−3
D. y=2x2+3x+2
Step-by-step explanation:
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The ratio of new houses to antique houses in a village is 4 : 5 . If there are 12 new houses , how many antique houses are there ?
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✏ Let , the number of antique houses in a village be ' x ' .
Then , According to the question :
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Apply cross product property
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So, The number of antique houses in a village is 15.
Hope I helped ! ♡
Have a wonderful day / night ツ
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<h3>
Answer: -3.71</h3>
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Explanation:
You'll need to use a T table to answer this question. Your stats textbook should have such a table in the back appendix section.
If your textbook doesn't have the proper table, or you don't have your textbook with you, then I recommend searching online for "t table" and you should have tons of free options to choose from.
In the table you'll look for the degrees of freedom row 6, since the degrees of freedom are equal to n-1. In this case, n = 7.
In this row, locate the column labeled "alpha = 0.005" and you'll be looking at "one tail". The value in this row and column is roughly 3.707
Since we're doing a left tailed test and we want P(t < C) = 0.005, where C is the critical value we're after. This must mean C < 0. So C = -3.707 approximately. Round this to two decimal places and we end up with -3.71
The probability of drawing a blue card is equal to the quotient when the number of blue cards is divided by the total number of cards. This is, 16/38 which is also equal to 8/19. Thus, the probability of drawing a yellow card is 8/19. The answer is letter C.
