Answer:
39
Step-by-step explanation:
y=arctan(0.8)=38.65=39
Answer:
Liam must raise $116 .
Step-by-step explanation:
Formula
As given
Liam wants to buy a bicycle that costs $290.00.
His parents say Liam must raise 40% of the money himself.
Percentage = 40%
Total value = $290
Putting in the formula
Part value = $116
Therefore the Liam must raise $116 .
Answer:
Hi,
Step-by-step explanation:
Let's factorize the area:
The breadth of the rectangle is x+3y
Answer:
x = 5
Step-by-step explanation:
You can rewrite the right side, then equate the arguments of the log function.
4·ln(x) = 2·ln(25)
4·ln(x) = 2·ln(5^2)
4·ln(x) = 4·ln(5) . . . . . . . use the rule ln(a^b) = b·ln(a)
x = 5 . . . . . . . . . . . . . . . .divide by 4 and take the antilog
Answer:
x = 5
Step-by-step explanation:
Just as a note, you can look at x = 25 and know that it is not the answer. If it was, then you would get
4ln(25) = 2 ln(25) which reduces down to 4 = 2 when you divide by ln(25) on both sides.
4 ln(x) = 2 ln(25) Represent 25 as ln(5)^2
4 ln(x) = 2 ln(5)^2 The power on the right can be brought down.
4 ln(x) = 2 * 2 * ln(5) Divide both sides by 4
4 ln(x)/4 = 4 ln(5)/4
ln(x) = ln(5) Take the antiln of both sides.
antiln(ln(x)) = antiln(5)
x = 5