Answer:
False
Reasoning:
- It's an acute angle, 140 is obtuse
- Angles 6 and 8 are 140 degrees, so 5 can't be
Answer:
2x16= -32 x-6 x-6
Step-by-step explanation:
2x-16 =-32 and x - 6 = x - 6praises
Answer:
Step-by-step explanation:
a=30
b= 17
c= 18
we actually already found angles B and C for the last problem I think we said 30 and 32 so we would be able to guess that angle A is about 118° but.. let's do the math... and see
angle A = arcCos[ b^2 + c^2 - a^2 / 2*b* c ]
A = arcCos[ 289 +324 - 900 / 2*17*18]
A = arcCos[ -287 / 612 ]
A = arcCos[ -0.468954 ]
A = 117.9664 °
ohh and we're off by 0.0336 phooy :P soo far off... :P
rounding to nearest 10th
A = 118.0 ° ( ohh right on the money :P) yay, I feel better. :P
Let the angle be x and its complement be y and its supplement be z
Then A/Q
x +y = 90°
x = 90° - y -----(¡)
And x+z = 180°
From ques. z = 5y
Then x + z = 180°
x + 5y = 180°
From (¡) 90 - y +5y = 180
90-4y = 180
y = 90/4 = 22.5°
x = 90- 22.5
= 67.5
Answer:
D) y = − 3/2 x + 3 /2
Step-by-step explanation:
3x+2y =1
We need to get this in slope intercept form (solve for y)
Subtract 3x from each side
3x-3x +2y = -3x+1
2y = -3x+1
Divide by 2
2y/2 = -3/2x+1/2
The slope is -3/2
We want a line that is parallel so the slope is the same
m = -3/2
We an use point slope form since we have the slope and a point
y - y1 = m(x-x2)
y - 0 = -3/2(x-1)
Distribute
y = -3/2x +3/2