Answer:
Point-slope form:
y-5= -1/3 times (x+9)
This is only for the first part
Let s and c be the rate of the boat in still water and the rate of the current, respectively. Then:
108/s-c=3
108/s+c=2
3s-3c=108
2s+2c=108
Solve for s and c
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Answer:
Solid 7
Step-by-step explanation:
Given:
To find:
The value of x and measure of ∠A.
Solution:
Let C be angle the vertically opposite to ∠A.
The reference image for answer is attached below.
By vertical angle theorem:
m∠A = m∠C
m∠C = 10x + 24°
By the corresponding angle theorem:
m∠C = m∠B
Subtract 24° on both sides.
Subtract 6x from both sides.
Divide by 4 on both sides.
The value of x is 12°.
The measure of ∠A is 144°.
Answers :
BC = 17.1
Angle B = 6.7°
Angle C = 83.3°
To find side BC, you use pythagorean’s theorem, which is a^2 + b^2 = c^2
This gives you 289 + 4 = 293, and you find the square root, which is 17.1.
To find the angle measures you can use tangent, which is opposite sides over adjacent sides. You plug these values into a calculator.
b = tan 2/17 = 6.7°
c = tan 17/2 = 83.3°
