Answer:
x = 2 degree and unknown angle = 31 degree
Step-by-step explanation:
149 + 13x + 5 =180 degree (being linear pair)
154 + 13x = 180
13x = 180 - 154
x = 26/13
x = 2 degree
unknown angle = 13x + 5
=13*2 + 5
=26 + 5
=31 degree
The value of y so that the line passing through (-1, 9) and (2, y) has a slope of -2 is 3.
<h3>What is the slope of a line?</h3>
The value of the steepness or the direction of a line in a coordinate plane is referred to as the slope of a line, also known as the gradient. Given the equation of a line or the coordinates of points situated on a straight line, the slope can be determined using a variety of approaches.
, where and are two points on the line.
Two points (-1, 9) and (2, y) are given, and a slope of -2.
Put the points in the slope formula to get the value of y.
So, the value of y is obtained as 3.
To know more about the slope of a line:
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Answer:
Ok, so what is the qns?
Step-by-step explanation:
Answer:
8.8 = X
Step-by-step explanation:
-12.6x - 4.9x = -154
-17.5x = -154
Divide both sides by -17.5. Since there's already a -17.5 with the X, they cancel each other out.
X = -154 / -17.5
X = 8.8
Answer:
30°
Step-by-step explanation:
The ratio of the side opposite (AB) to the hypotenuse (AC) is ...
4.5/9 = 1/2
From your memory of a short table of trig functions you know this is the sine of 30°. From the mnemonic SOH CAH TOA, you know that
Sin = Opposite/Hypotenuse
Putting these facts together gets you ...
sin(C) = 1/2 = sin(30°)
C = 30°