The value of x is 10 and y is 20.
Solution:
<em>Sum of the adjacent angles in a straight line = 180</em>
⇒ 7x° + 90° + 20° = 180°
⇒ 7x° + 110° = 180°
Subtract 110° from both sides.
⇒ 7x° = 70°
Divide by 7 on both sides.
⇒ x° = 10°
In the image, 90° and (5x° + 2y°) are vertically opposite anlges.
<em>If two lines are intersecting, then vertically opposite angles are equal.</em>
⇒ (5x° + 2y°) = 90°
⇒ 5(10°) + 2y° = 90°
⇒ 50° + 2y° = 90°
Subtract 50° from both sides.
⇒ 2y° = 40°
Divide by 2 on both sides.
⇒ y° = 20°
Hence the value of x is 10 and y is 20.
Step-by-step explanation:
D. In a column two-way relative frequency table, each column totals 100%.
You said X = (5y+1) / (y-2)
Multiply each side by (y-2):
X(y-2) = (5y+1)
Eliminate parentheses:
Xy - 2X = 5y + 1
Add 2X to each side:
Xy = 5y + 1 + 2X
Subtract 5y from each side:
(X-5)y = 1 + 2X
Divide each side by (X-5):
<em>y = (1+2X) / (X-5) </em>
<span><span>36x</span>−<span><span><span>8<span>y2 </span></span></span><span><span>x=3 and </span><span>y=<span>−6</span></span></span></span></span><span><span><span>(36)</span><span>(3)</span></span>−<span>8<span><span>(<span>−6</span>)</span>2</span></span></span><span>=<span>−180</span></span>
Answer:
Did u mean triangle? There are no angles on a line.
Or do you mean two angles of 90 degrees?
Step-by-step explanation: