The correct answers are:
(1) If EXACT number is required, then 7.5.
(2) If multiple of 8 is required then the answer will be 7 times with a remainder of 4.
Explanation:
First you need to express it in the form of equation to make things simpler as follows:
8 * y = 60
We need to find y; to do so, divide 60 by 8:
y =
y = 7.5
Now if you want to find the whole number, then the answer will be 7 times, with 4 left over.
Answer:
C
Step-by-step explanation:
a is wrong because residuals are solved using y and not x
b is wrong because a residual closer to 0 would be more accurate, but f is less accurate than g
c is right because residuals are solved using y and a more accurate residual would be closer to the real answer's y value
hope this helped ^_^
Answer:
x = - 8
Step-by-step explanation:
Given
6(x - 1) = 9(x + 2) ← distribute parenthesis on both sides
6x - 6 = 9x + 18 ( subtract 9x from both sides )
- 3x - 6 = 18 ( add 6 to both sides )
- 3x = 24 ( divide both sides by - 3 )
x = - 8
When you cut off for squares of x side length, the area of the base of the box is [10 - 2x]^2 and the height ot the box is x, then the volumen of the box is:
(10 - 2x)^2 * x = 48
(100 - 40x + 4x^2)*x = 48
100x - 40x^2 + 4x^3 = 48
4x^3 - 40x^2 + 100x - 48 = 0
x^3 - 10x^2 + 25x - 12 = 0
Using Ruffini you can get 3 as a solutio:
3^3 - 10(3^2) + 25(3) - 12 = 27 - 90 + 75 - 12 = 0
Factoring you get (x - 3) (x^2 -7x + 4) = 0
Then, you can apply the quadratic formula to x^2 -7x + 4 to find the other two roots.
They are x = 0.6277 and x = 6.3723.
x = 6.32723 is not valid because 10 - 2x < 0.
Then there are two real solutcions for the side of the squate: 3 and 0.6277 (althoug the second one is a very low box)