Answer:
D.
90 x 1/2 = 45 km
The rate is 90 miles per hour and 30/60=1/2 so we multiply 1/2
Hope this helps
Step-by-step explanation:
This is a 45-45-90 triangle. The side facing the 90 degree angle would be the a square root 2. The sides facing the 45 degree angles would be a. 2 square root 2 is facing a 45 degree angle, so that means the side facing the 90 degree angle would be 2 square root 2 x square root 2 which is 4. Basically:
a = 4
b = 2 square root 2
Sqrt(27)+sqrt(48)+sqrt(12)
Sqrt(27)=sqrt(3*3*3)=3*sqrt(3)
Sqrt(48)=sqrt(4*4*3)=4*sqrt(3)
Sqrt(12)=sqrt(2*2*3)=2*sqrt(3)
Add the three to get 9*sqrt(3)
Final answer:
9*sqrt(3)
Hope I helped :)
Answer:
15cm
Step-by-step explanation:
PC = 15
BR = 15
.
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<h3>Answer: Choice D. (2, 1)</h3>
Reason:
See the screenshot below. I used GeoGebra to plot the points.
The sub group of points D, E, F form a bowl shaped region. Imagine a small parabola passing through these points. Point E is either the local min or very close to it. This is because point E is at the bottom of the bowl shape.