Answer:
it would take 45 mintues
Step-by-step explanation:
3,800 - 2000 = 1,800 and 1,800 / 40 = 45.
Short Answer C
Nice little problem. The catch is that alpha and beta both add up to 90 degrees.
Here's why.
α + β + right angle = 180° All triangles have 180° A right and = 90°.
α + β + 90 = 180 Right angles are 90° Now subtract 90° from both sides
α + β = 180 - 90
α + β = 90
Now all you have to do is put in the x values for alpha and beta and equate them to 90
5x/3 + 20 + 2x/3 + 14 = 90 Collect the light terms.
5x/3 + 2x/3 + 20 + 14 = 90
7x/3 + 34 = 90 Subtract 24 from both sides.
7x/3 = 90 - 34
7x/3 = 56 Multiply by sides by 3
7x = 3*56
7x = 168 Divide by 7
x = 168/7
x = 24
That's not quite the answer
The question wants alpha.
α = 5x / 3 + 20
α = 5*24/3 + 20
α = 120/3 + 20
α = 40 + 20
α = 60
Answer C <<<<<<
Answer:
y=(0,-45)
x=(-10,0)
Step-by-step explanation:
Answer:
x = 5, y = -2.
Step-by-step explanation:
3x+2y=11
2x-2y=14
Adding removes the y terms:
5x = 25
x = 5.
Substitute for x in the first equation:
3(5) + 2y = 11
2y = 11 - 15 = -4
y = -2.
