9514 1404 393
Answer:
252.8 cm²
Step-by-step explanation:
The missing side of the right triangle can be found from the Pythagorean theorem:
s² = 20² -16² = 400 -256 = 144
s = 12 . . . . cm
The area of a right triangle is more easily found using the traditional area formula:
A = 1/2bh
A = 1/2(12 cm)(16 cm) = 96 cm² (left-side triangle)
The area of the triangle on the right can be found from Heron's formula. The semiperimeter is ...
s = (16 +20 +23)/2 = 29.5
The area is ...
A = √(29.5(29.5 -16)(29.5 -20)(29.5 -23)) = √(29.5·13.5·9.5·6.5)
A = √24591.9375 ≈ 156.818 . . . . . cm² (right-side triangle)
Then the total area of the figure is ...
A = 96 cm² +156.818 cm² = 252.818 cm² . . . . total area
Answer:
134,784 people
Step-by-step explanation:
Hello!
Let's first find the number of people it can carry on 1 trip. We can do this by multiplying the number of people per coach, by the number of coaches.
The train carries 864 people per trip. We can find the number of people in 156 trips by multiplying 864 by 156.
The train, in full capacity, will carry 134,784 people in 156 trips.
Step-by-step explanation:
(3x-15)°= 105°
3x=120
x=40°
(y+25)°=180-105
(y+25)°=75°
y=75-25
y=50°
Answer:
x³ + 57 is the required expression answer.
Answer:
An independent variable is unaffected by any other variable; it simply exists. On the other hand, the dependent variable depends directly on the independent variable.
Step-by-step explanation:
