21/16 which simplifies to 1 and 5/16
You get this by making 1 1/2 a mixed number (3/2). To get 3/2 you do: bottom times the side plus the top---2x1=2+1=3. So 3/2
Then you multiply across:
7x3=21
8x2=16
So 21/16 is your answer
Answer:
positive
Step-by-step explanation:
if x is positive then for all values 5x^3 which is always>-2x will be positive and therefore answer always positive
if x is negative then 5x^3 will always be positive and -2(X) will cancel the two minuses -- and will add therefore positive
Answer:
Step-by-step explanation:
lets remember which are the prime numbers 1 to 81
2,3,5,7,23,29,31,37,....83
the only way you can write 81 as a product of its prime factors are
3x3x3x3=3^4
Answer:
a = 80
b = 3/4
the general equation is;
y = 80•(3/4)^x
Step-by-step explanation:
Here, we want to get the values of a and b
We are going to use the two points given
(0,80) and (1,60)
So we have this as;
for the first point;
80 = a•b^0
anything raised to power of 0 is 1
Thus;
80 = a * 1
a = 80
for the second point;
60 = 80 * b^1
60 = 80b
b = 60/80
b = 3/4
So we have the general equation as;
y = 80•(3/4)^x
Tracy should deposit 1,369.86 to earn 3,000 in 5 years at 4% interest rate compounded 4 times a year
Given:
Compounded Interest = 3000
Term = 5 year
Frequency = 4 times a year
interest rate = 4%
Principal = unknown.
C.I = Principal × (1 + rate)^t
3000 = Principal × (1.04⁴)⁵
3000 = Principal × 1.17⁵
3000 = Principal x 2.19
3000/2.19 = Principal
<span>1,369.86 = Principal</span>