Answer:
none of them
Step-by-step explanation:
The given expression expands to ...
... -12y -14
The offered expressions expand to ...
... A: -28y -14
... B: 28y -14
... C: -28y +36
... D: -28y +36
There is no match between the given expression and any of the answer choices.
Answer:
<A = 67
Step-by-step explanation:
The three angles of a triangle add up to 180 degrees. We know a right angle is 90 degrees.
<A + <B + <C = 180
3x-8 + 90 + x-2 =180
Combine like terms
4x-10+90 = 180
4x+80 =180
Subtract 80 from each side
4x+80-80=180-80
4x=100
Divide each side by 4
4x/4 = 100/4
x=25
But we want to know <A
<A = 3x-8
Substitute x=25
=3(25) -8
=75-8
= 67
Answer:A
Step-by-step explanation:
8(-1/4)-(3)2-3=-2-6-3=-11
Answer:
Step-by-step explanation:
D = distance
v = speed
t = time
Distance formula says that
You are given
miles
hour
is unknown.
Substitute them into the distance formula:
![\dfrac{3}{4}=v\cdot \dfrac{2}{3}\\ \\3\cdot \dfrac{3}{4}=2v\ [\text{Multiplied by 3}]\\ \\\dfrac{9}{4}=2v\\ \\v=\dfrac{\frac{9}{4}}{2}\ [\text{Divided by 2}]\\ \\v=\dfrac{9}{4}\cdot \dfrac{1}{2}=\dfrac{9}{8}=1\dfrac{1}{8}\ \text{miles per hour}](https://tex.z-dn.net/?f=%5Cdfrac%7B3%7D%7B4%7D%3Dv%5Ccdot%20%5Cdfrac%7B2%7D%7B3%7D%5C%5C%20%5C%5C3%5Ccdot%20%5Cdfrac%7B3%7D%7B4%7D%3D2v%5C%20%5B%5Ctext%7BMultiplied%20by%203%7D%5D%5C%5C%20%5C%5C%5Cdfrac%7B9%7D%7B4%7D%3D2v%5C%5C%20%5C%5Cv%3D%5Cdfrac%7B%5Cfrac%7B9%7D%7B4%7D%7D%7B2%7D%5C%20%5B%5Ctext%7BDivided%20by%202%7D%5D%5C%5C%20%5C%5Cv%3D%5Cdfrac%7B9%7D%7B4%7D%5Ccdot%20%5Cdfrac%7B1%7D%7B2%7D%3D%5Cdfrac%7B9%7D%7B8%7D%3D1%5Cdfrac%7B1%7D%7B8%7D%5C%20%5Ctext%7Bmiles%20per%20hour%7D)
