46 = 5k - 59
46 + 59 = 5k
105 = 5k
105/5 = k
21 = k
k is 21
Answer:
(a)
(b)
Step-by-step explanation:
Given
Solving (a): Simplify
Open brackets
Collect Like Terms
Simplify Like Terms
Solving (b): Simplify when a = 2 and b = -1
Hence:
Answer:
The radius of the silo should be
Step-by-step explanation:
we know that
The volume of the grain silo is equal to the volume of the cylinder plus the volume of a hemisphere
we have
substitute the values and solve for r
Simplify
The mean is 87 and median is 86.
<h3>What is mean and median?</h3>
The arithmetic mean is found by adding the numbers and dividing the sum by the number of numbers in the list.
The median is the middle value in a list ordered from smallest to largest.
Given:
79, 91, 93, 85, 86, and 88
So,
79+85+86+88+91+93/6 = 87
and, the median
79, 85, 86, 88, 91, 93
median = 86
Learn more about this concept here:
brainly.com/question/1863752
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19............(i think).............