Answer: 120 cm^2
Step-by-Step Explanation:
Base (b) = 12 cm
Height (h) = 10 cm
Area (a) = bh
Therefore,
= bh
= b * h
= 12 * 10
=> 120
Area (a) = 120 cm^2
Answer:
3:7
Step-by-step explanation:
3 parts of lemonade to 7 parts punch
The lest common multiple of 19 and 14 is 266
hope this helped
Answer:
225 m²
Step-by-step explanation:
If W is the width of the rectangle, and L is the length, then:
60 = 2W + 2L
A = WL
Use the first equation to solve for one of the variables:
30 = W + L
L = 30 − W
Substitute into the second equation:
A = W (30 − W)
A = 30W − W²
This is a parabola, so we can find the vertex using the formula x = -b/(2a).
W = -30 / (2 × -1)
W = 15
Or, we can use calculus:
dA/dW = 30 − 2W
0 = 30 − 2W
W = 15
Solving for L:
L = 30 − W
L = 15
So the maximum area is:
A = WL
A = (15)(15)
A = 225
