18. Simplify this expression: 19 – (-8) - (-14) = ? А, 41 В. 25 с. -3 D. -7
2 answers:
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Answer:
x= -5-/4, - 5+
/4
Step-by-step explanation:
solve the equation for x by finding a,b, and c of the quadratic then applying the quadratic formula (the full thing under "answer:" is the exact answer
9514 1404 393
Explanation:
Use the identities ...
csc(x) = 1/sin(x)
cot(x) = cos(x)/sin(x)
__
Answer:
Jason is 14 year old.
Step-by-step explanation:
Given: Joe, John and Jason are each a year apart in age.
Sum of their age is 39.
Lets assume the age of Joe be x
∴ Age of Jahn will be
And age of Jason will be
Now, putting up an equation for the sum of their age.
∴
Opening the parenthesis.
⇒
⇒
Subtracting both side by 3
⇒
Dividing both side by 3
⇒
∴
Hence, Joe is 12 year old.
Next subtituting the value of x to find age of Jason and John.
Jason=
∴Jason= 14 years.
John age=
∴ John Age= 13 years.
Hence, Jason is 14 year of age.