Answer:
Esther didn't divide the area of the faces by 2.
The correct surface area is 72 cm^2
Step-by-step explanation:
Esther didn't divide the area of the faces by 2.
The correct surface area is:
(4 * 4) + 4((4 * 7)/2)
16 + 4(28/2)
16 + 4(14)
16 + 56 = 72 cm^2
Answer:
x = 432
Step-by-step explanation:
72 / x = 16 2/3 / 100
7200= 16 2/3x
7200 / 16 2/3 = 432
16 2/3x / 16 2/3 = x
Surface area I think is the circle. So the formula to find the area of the circle is to do Pi times radius squared. Pi= 3.14 Radius in this case will be 2.2. (Radius is how much it measures out from the middle.) then you want to do 2.2 x 2.2 (since it's square) So the answer would be equal to (I think) 15.1976
Answer:
The equation of line 'U' is;
y = 
+ 5
Step-by-step explanation:
A line 'T' has an equation; y = 
x - 9
A line 'U' passes through point (4,1) and is parallel to the line 'T'
We are to find the equation of line 'U'.
The slopes of two parallel lines are equal.
The slope of line 'T' is and so the slope of line 'U' is
Since line 'U' passes through point (4,1) , we choose another point (x,y) still on the line.
Slope = change in y ÷ change in x
= 
Cross-multiplying gives;
9y - 9 = x - 4
9y = x - 4 + 9
9y = x + 5
y = 
+ 5 (and this is the equation of line 'U')
Answer:
$115
Step-by-step explanation:
Although it did say to complete the equation I put the answer just in case.
So, in order to calculate the total weekly income, I will use x which will equal the number of hours. The equation needed to calculate the weekly total income will be:
w = 6x + 25
Because we know the number of hours is 15, we can plug 15 in x:
w = 6(15) + 25
w=90+25
w=115
So, the total weekly income will be $115(don't forget to put the unit! In this case it will be the dollar sign).
