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dezoksy [38]
3 years ago
13

A man claims to have extrasensory perception. As a test, a fair coin is flipped 10 times and the man is asked to predict the out

come in advance. He gets 7 out of 10 correct. What is the probability that he would have done at least this well if he had no ESP?
Mathematics
1 answer:
const2013 [10]3 years ago
4 0
Hujhsusjsvsjhdjdjjdd
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Dana is attaching a shelf to a wall and needs the shelf to be perpendicular to the wall. How many degrees should the shelf be re
KiRa [710]
90° because perpendicular lines are never ending.
8 0
3 years ago
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On a school bus, the teacher sitting in front of me asked if I passed gas -- why did she ask me this and why did she WHISPER it
polet [3.4K]
She probably asked you if you passed gas because she smelled something that stink and thought they since u were clos3r to her that it was you. she could hav3 done it, or another student, it all depends. this question was do funny lol. and sh3 whispered it becaus3 she didnt want to possibly embarrass u. anyways ciao
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3 years ago
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45% of the students in Primary 5 are boys. There are 165 girls. How many more girls than boys are there in primary 5?
bezimeni [28]

Answer:

30 more

Step-by-step explanation:

hope it helps friend.

5 0
1 year ago
In the diagram below, AB is parallel to CD. What is the value of x?
garik1379 [7]

The correct answer is: Option (D) x = 72°

Explanation:

When two lines are crossed by another line, the angles in matching corners are called <em>corresponding angles</em>. When the two lines are <em>parallel</em>, the corresponding angles are <em>equal</em>.

Here in this case, the two lines are "AB" and "CD", and both are parallel and are crossed by the line; therefore, <em>the corresponding angles will be the same</em>.

Since the first corresponding angle is 72°, the second angle <em>x </em>will be 72° as well. The correct answer is: x = 72° Option (D).

8 0
2 years ago
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What is the solution set for the following system of equations 5x-3y-10=0 x+y-7=0
garik1379 [7]

(x, y) = ( \frac{31}{8}, \frac{25}{8})

given the 2 equations

5x - 3y - 10 = 0 → (1)

x + y - 7 = 0 → (2)

rearrange (2) to obtain y in terms of x

y = 7 - x → (3)

Substitute y = 7 - x into (1)

5x - 3(7 - x) - 10 = 0

5x - 21 + 3x - 10 = 0

8x - 31 = 0 ( add 31 to both sides )

8x = 31 ( divide both sides by 8 )

x = \frac{31}{8}

Substitute this value into (3) for y

y = 7 - x = \frac{56}{8} - \frac{31}{8} = \frac{25}{8}


6 0
3 years ago
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