Answer:
16) 6%
17) 4 years
18) 2 years
Step-by-step explanation:
The formula for these questions is I = PRT
16) 27 = 900 (R) (0.5)
Notice how I used 0.5 instead of 6 for the T. T has to be measured in years, not months and 6 months is half a year.
R = 0.06 = 6 %
17) 480 = 2000 (0.06) (T)
T = 4 years
18) 1080 = 4500 (0.12) (T)
T = 2 years
The perimeter of the square is 28-12n.
We have a square. The length of the side of the square is (-3n + 7). We need to find the perimeter of the square. The perimeter of a shape is defined in geometry as the total length of its boundary. The perimeter of a shape is calculated by adding the lengths of all the sides and edges that surround it. The perimeter of a shape is the sum of all the sides of the shape. The square has four sides, and all the sides of the square are equal to each other. The perimeter of the square is four times the length of one of its sides.
P = 4*(-3n + 7) = -12n + 28
To learn more about perimeter, visit :
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Asked and answered elsewhere.
brainly.com/question/10380089It will take about
9.9 years longer to double your money at 3% simple interest compared to 3% interest compounded annually.
Remark
What value of k will make the entire polynomial = 0 when k is meant to be a factor? In brief, solve the polynomial when f(-3) is substituted into the right hand side.
f(x) = 2x3+x2+kx+18
f(-3) = 2x3+x2+kx+18
f(-3) = 2(-3)^3 + (-3)^2 - 3k + 18 = 0
-54 + 9 - 3k + 18 = 0
-54 + 9 + 18 - 3k = 0
-27 - 3k = 0
- 3k = 27
k = 27/ - 3 = - 9
Answer
k = -9
Check
2x^3 + x^2 - 9x + 18 = 0
2(-3)^3 + (-3^2) - 9(-3) + 18 = 0
-54 + 9 + 27 + 18 = 0 Just as it should be.
Formula: Circumference = πD
Given that diameter = 42,
⇒ Circumference = π (42) = 132 ft
Answer: 132 ft
