Answer:
Option A is correct
Difference of squares identity should be used to prove 49-4 =45
Step-by-step explanation:
Prove that : 49 - 4 = 45
Polynomial identities are just equations that are true, but identities are particularly useful for showing the relationship between two apparently unrelated expressions.
Difference of the squares identity:
After applying formula and calculations it is round about <span>28.3</span>
Answer:
This is an 8 by 4 triangle
Step-by-step explanation:
It was asking for the dimensions of the rectangle
Answer:
Part 1 - A
Answer: 301.592895 m^3
Step-by-step explanation:
The formula for the volume of a cone is calculated the formula:
<u>V = πr^2h/3 </u>
In the question, we are given the value of the radius and height in meters through which we can calculate the volume.
r = 6
h = 8
and we know the value of π to be 22/7, or 3.14285714286.
By substituting these values in the formula, we can solve for volume of the cone:
V = π (6)^2 8 / 3
Volume = 301.592895 m^3
Hope this helps!
Answer:
Step-by-step explanation:
marked down by 1/4 of the original price.
let x represent original price
original price - 1/4 of original price = sales price
x - 1/4x = 128
4/4x - 1/4x = 128
3/4x = 128
x = 128/(3/4)
x = 128 * 4/3
x = 512/3
x = 170.666 rounds to 170.67 <== original price
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I hope I am understanding this one correctly...
let x = price the store paid
x + 1/2x = 170.67
2/2x + 1/2x = 170.67
3/2x = 170.67
x = 170.67 / (3/2)
x = 170.67 * 2/3
x = 341.34/3
x = 113.78 <=== what the store paid
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the difference between the discount price..I am assuming this is the $ 128 from part A.....and what the store paid....113.78...from part B..
128 - 113.78 = $ 14.22 <==
I am not completely sure about B and C......B confused me.....and if B is wrong, so is C.
