Answer:
49.92 miles/hour
Step-by-step explanation:
32 miles/hour = 32 * 5280 = 168960 ft/hour
For the collision to occur, both cars must arrive at the intersection at the same time.
The time it takes for the Mercedes to travel 400 feet at the rate of 168960 ft/hour is 400 / 168960 = 0.002367 hours
So the Ferrari should take the same time to travel 624 feet as well, its speed would be
624 / 0.002367 = 263577.6 ft/hour or 263577.6 / 5280 = 49.92 miles/hour
The answer is 66% because you divide 5.28 divided by 8
Answer:
Option (3)
Step-by-step explanation:
w =
Since, cos(225) = cos(180 + 45)
= -cos(45) [Since, cos(180 + θ) = -cosθ]
= -
sin(225) = sin(180 + 45)
= -sin(45)
= -
Therefore, w =
=
=
z = 1[cos(60) + i(sin(60)]
=
=
Now (w + z) =
=
=
=
Therefore, Option (3) will be the correct option.
Answer:
Y = 12 x = 13
Step-by-step explanation:
Triangular Sum says that the three angles in a triangle is 180˙.
So, <DAC + <ACD + <CDA = 180.
1. Substitute the angle measures into the equation above.
<DAC + <ACD + <CDA = 180
(3y + 2) + 52 + 90 = 180
3y + 144 = 180
<u>- 144 -144</u>
<u> 3y</u> = <u>36</u>
3 3
y = 12
m<DAC & m<CAB add up tp 90.
2. <DAC + <CAB = 90
38 + 4x = 90
<u>- 38 .</u> <u>- 38</u>
<u>4x </u>= <u>52</u>
4 4
x = 13