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BabaBlast [244]
3 years ago
8

assume that random guesses are made for 9 multiple choice questions on an SAT test, so that there are n=9 trials, each with prob

ability of success (correct) given by p=0.6. find the indicated probability for the number of correct answers. find the probability that the number x of correct answers is fewer than 4.
Mathematics
1 answer:
Orlov [11]3 years ago
8 0

Answer:

though this looks difficult. It's easier than you think. Just not visible until its visible. If I knew the answer, i would have told you... sorry.

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Please help! Thank you so much!
igor_vitrenko [27]

Angle W:

180 = 90 + 57 + W

180 = 147 + W

W = 33 degrees

Using trigonometry functions to find the side lengths. (SOH CAH TOA)

Side XZ:

cos(57) = XZ / 18

XZ = cos(57) x 18

XZ = 9.8 units

Side XW:

sin(57) = XW / 18

XW = sin(57) x 18

XW = 15.1 units

Hope this helps!! :)

4 0
3 years ago
What is the value of the expression below <br> (9²)^1/4<br> A. 9<br> B. 1<br> C. 3<br> A. 27
mario62 [17]
(9²)^1/4 = 3


Answer : C. 3
4 0
3 years ago
Question 2 (Multiple Choice Worth 1 points)
Oliga [24]
A vertical line can only pass through the x axsis not the y unless it was at 0 then it would pass through all the y points. A diagonal line can pass through (-5,1) but not a vertical choose x=-5 if you want it to be a vertical line going through (-5,0)
3 0
2 years ago
-2 is equal to -5 or is -2 greater than -5. or, is -2 less than -5?
Lostsunrise [7]

Answer:

-2 greater than -5.

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Which statement is true about the product of 5/12 x 7?
nataly862011 [7]

Answer:

B

Step-by-step explanation:

because the denominator of fraction, 5/12 ,is greater than both the numerator and the multiplier which is 7

6 0
3 years ago
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