Answer:
B.
Step-by-step explanation:
The opposite of 5/2 is -5/2 which is -2 1/2 and the opposite of -1/2 is 1/2.
Answer :
- Total number of people in the room = 18
- Number of people with red hair = 2
- Number of people not with red hair = 18 - 2 = 16
- Probability of picking a person who doesn't have red hair =
Probability = 16/18
Reduce the fraction with 2
Probability = 8/9
The arc length of the semicircle is 5π units
<h3>Calculating length of an arc</h3>
From the question, we are to calculate the arc length of the semicircle
Arc length of a semicircle = 1/2 the circumference of the circle
∴ Arc length of a semicircle = 1/2 × 2πr
Arc length of a semicircle = πr
Where r is the radius
From the given information,
r = 5
∴ Arc length of the semicircle = 5 × π
Arc length of the semicircle = 5π units
Hence, the arc length of the semicircle is 5π units
Learn more on Calculating length of an arc here: brainly.com/question/16552139
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C - 7.6 = -4
c = -4 + 7.6
c = 3.6
It took me a minute, but I understand what it wants you to do.
a^2+b^2=c^2
Find the missing length on that one triangle to the left.
62^2+b^2= 99.2^2
Square the numbers.
3844+b^2= 9840.64
Subtract 3844 on both sides.
b^2= 5996.64
Square root it.
b= 77. 437975 round down to b= 77.4
Now, we can find the length of the other missing side. (x+2)
77.4^2+b^2= 112^2
5990.76+b^2= 12,544
Subtract 5990.76 on both sides.
b^2= 6553.24
Square root it.
b= 80.952085, round to b=81
Now, plug that in.
(x+2)= 81
Subtract 2 on both sides.
x=79 (about)
I hope this helps! Make sure to check my work.
~kaikers
