Answer:
459
Step-by-step explanation:
first we solve the area of the rectangle. the length of the rectangle is 22 and the width is 18. 22 times 18=396. next we need to solve the area of the triangle. 7 is the height of the triangle and 18 is the width. 7 times 18 divided by 2 is 63. Next we need to add up the area of the rectangle and the triangle
396+63=459
Answer:
C - 20%
Step-by-step explanation:
See the attachment
Answer:
D
Step-by-step explanation:
It is a 30, 60, 90 triangle
if the leg on the same side as the 90 degree angle is , then:
The base is 14, and the hypotenuse is 28
In this type of triangle:
the base is the other leg
and 2 times the base is the hypotenuse
so x=14, and y=28
Answer D
The hydronium ion is H₃O⁺ and its concentration is equivalent to the H⁺ ion concentration. The H⁺ ion concentration is given by:
pH = -log[H⁺]
[H⁺] = 10^(-8.2)
[H⁺] = 6.31 x 10⁻⁹ mole/dm³
The hydronium ion concentration is 6.31 x 10⁻⁹ mole/dm³
Let the width be w.
Length = 3w - 6
Perimeter = 460
w + w + 3w - 6 + 3w - 6 = 460
8w - 12 = 460
8w = 472
w = 59
Width = w = 59 yards
Length = 3w - 6 = 3(59) - 6 = 171 yards
Answer: Length = 171 yards and Width = 59 yards