Answer: option B is correct
Step-by-step explanation:
The formula for determining the area of cross section of a trapezoid is expressed as
Area = 1/2(a + b)h
Where
a and b are the length of The bases are the 2 sides of the trapezoid which are parallel with one another.
h represents the height of the trapezoid.
From the information given,
a = h1 = 11 inches
b = h2 = 15 inches
If It has an area of 52 inches² , then
52 = 1/2(11 + 15)h
Cross multiplying by 2, it becomes
52 × 2 = (11 + 15)h
104 = 26h
h = 104/26 = 4 inches
Answer:
First box: 180 degrees
Second box: 1 unit down
Step-by-step explanation:
After it is rotated, you will have to move it 1 unit down again.
9514 1404 393
Answer:
40 m
Step-by-step explanation:
The area is given by the formula ...
A = 1/2(b1 +b2)h
Using the given values, we can find h to be ...
1800 = 1/2(50 +40)h
3600 = 90h . . . . . . . . . multiply by 2
40 = h . . . . . . . . . . . divide by 90
The width of the lawn is 40 meters.
Y = 10x - 20
................................
9514 1404 393
Answer:
17 2/3
Step-by-step explanation:
A calculator or spreadsheet can figure this. The maximum of f(x) is found where 3x-2 intersects 25-x.
2x +3 = 25 -x
3x = 22
x = 22/3 = 7 1/3
25 -7 1/3 = 17 2/3 . . . . maximum value of f(x)
_____
Note in the graph that the slope of f(x) decreases at about x=5. The expression with the lower positive slope is 2x+3. So, it is that expression that must equal the expression with the negative slope.
