Answer:
11
Step-by-step explanation:
The mean is calculated as
mean =
let the third number be x , then
= 15 ( multiply both sides by 3 to clear the fraction )
34 + x = 45 ( subtract 34 from both sides )
x = 11 ← third number
What is the slope of the equation, y=3/4x +9
1 answer:
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Answer:
x = 1.5
Step-by-step explanation:
using the sine ratio in the right triangle and the exact value
sin60° = , then
sin60° = =
=
( cross- multiply )
2x = 3 ( divide both sides by 2 )
x = 1.5