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Answer: x = 140 (choice C)</h3>
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Explanation:
Focus on the upper semicircle. It's composed of the arc pieces that are 30 degrees, x degrees, and y degrees. The y is the missing unmarked portion of the upper semicircle.
Subtract the 30 and y degree angles, divide by 2, and set that result equal to 10. This will help us solve for y
(30-y)/2 = 10
30-y = 10*2
30-y = 20
-y = 20-30
-y = -10
y = 10
Because the 30, x and y arcs form a semicircle, this must mean the three arcs add to 180 degrees
30+x+y = 180
30+x+10 = 180
x+40 = 180
x = 180-40
x = 140
Use the distributive property to eliminate parentheses:
... = 3y -y -2x +x
Collect terms:
... = y(3 -1) +x(-2 +1)
... = 2y -x
The value of d in equation Q/R=8/d is 8R/Q.
Given an equation Q/R=8/d.
We are required to find the value of d in the given equation.
Equation is basically the relationship between two or more variables that are expressed in equal to form. The values that we enter is known as domain and the values that we get is known as range. It can be linear equation, quadratic equation, cubic equation.
The equation is :Q/R=8/d
We have to take d in right side of equal to sign and Q,R to the left side of right side of equal to sign.
d=8R/Q
Hence the value of d in equation Q/R=8/d is 8R/Q.
Learn more about equation at brainly.com/question/2972832
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Answer:
To find the surface area of a rectangular prism, measure the length, width, and height of the prism. Find the area of the top and bottom faces by multiplying the length and width of the prism. Then, calculate the area of the left and right faces by multiplying the width and height.
Answer:
d
Step-by-step explanation:
the corresponding angles are described by 2 parallel lines and a line that cross them all