2.1a - 0.4b - 1.2 is the correct answer
Answer:
Step-by-step explanation:832
Answer:
A = .785 inches ^2
Step-by-step explanation:
C = pi *d
We know the diameter = 2*r
C = pi*2*r
Substituting pi = 3.14 we can solve for r
3.14 = 2*pi*r
3.14 = 2*3.14 *r
Divide by 3.14 on each side
3.14/3.14 = 2*3.14 *r/3.14
1 = 2r
Divide by 2
1/2 =2r/2
1/2 =r
Now we can find the area
A = pi *r^2
A = 3.14 *(1/2)^2
A= 3.14 *1/4
A = .785 inches ^2
Answer:
Total Area = 42
Step-by-step explanation:
|x| means the positive value of x. So |-5| = 5
Top Triangle
H: The height is the maximum y value from 4 to 2 or (4 - 2) which is 2. The x value for both points is the same (-1) and so the distance is unaffected by the x value.
B: The base line is the x value from -5 to 2. That is a little trickier. You can say it is |-5| + 2 = 7
Area: The formula for the area is 1/2 B * H
<u><em>Area = 1/2 7*2 = 7 units^2</em></u>
Rectangle
L = B: The Length of the rectangle = the base of the triangle (7 units.
W: The y value from 2 to |-2| or 2 + 2 = 4
Area: the formula for the area is A = L*W
Area = L*W
Area = 7 *4 = 28 units^2
Bottom Triangle
B: The base of this triangle = B of the top triangle. The numbers are exactly the same.
H: |-4| - | - 2 |
H: 4 - 2
H: 2
Area: The area = 1/2 * 2 * 7 = 7 square units.
Total Area
Total Area = 7 + 28 + 7 = 42
Answer
The incorrect choice for calculate the number of is option (d) .
i.e
Reason
As given
You were billed $17.60 for water usage at a rate of $0.55 per gallon.
The number of gallons of water is represented by g.
Than the equation becomes
0.55 × g = 17.60
g = 32
Therefore 32gallons of water is used .
Thus Option (d) is incorrect between all the options.
