Answer:
Anle at B
b = 56.25°
Step-by-step explanation:
Triangle ABC is a right angle triangle. we are required to look for the angle at B
To do that we have one side of the triangle missing and we'd look for it first.
Let's side AC = c
AB = a
BC = b
c²=a² - b²
C² = 9² -5²
C² = 81 - 25
C² = 56
C = √56
For angle at B
√56/sinb = 9/sin90
Sin 90 = 1
Sinb = √56/9
b = sin^-1 (√56/9)
b = 56.251°
To the nearest hundredth
b = 56.25°
Answer
W=7
Explanation:
The formula for the perimeter for a rectangle is P = 2L + 2W
The formula for the area of a rectangle is A = LW
where L = length and W = width
P = 22 and A = 28
22 = 2L + 2W
28 = LW
Rewriting the 2nd equation L = 28/W
Substituting this into the first equation
22=2(28/W) + 2W
Reworking the equation to eliminate the denominator
22W = 2(28) + 2W2
22W = 56 + 2W2
and
2W2 - 22W + 56 = 0
Dividing by 2
W2 - 11W + 28 = 0
(W-7)(W-4)
Set each factor equal to 0 and solve each for 0
W = 4, W = 7
then W = 4
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I’m pretty sure it’s english but i’m not 100% sure
36 square miles because you take 82,080 and divide by 2,160
