To answer this question, we will use the sine law which is illustrated in the attached image.
We are given that:The distance from school to library = a
∠A = 32
∠B = 110
b = 2.2
Substitute with the givens in the relation of the sine law to get a as follows:(sin 32) / (a) = (sin 110) / (2.2)
a = (2.2 sin 32) / (sin 110)
distance from school to library = a = 1.2406 mi
Based on the above calculations, the best choice would be:B. 1.2 mi
You can obtain the graph of the function y=-2sinx-1 from the graph of the function y=sinx making such transformations:
1. <span>the multiplication by -2 increases y value twice and then symmetrically reflects the graph y=2sinx about the x-axis;</span>
2. adding -1 to the <span>y=-2sinx you translate the graph 1 unit down.
</span><span>
</span><span>On the added picture black line is a graph of y=sinx and red line is a graph of y=-2sinx-1.</span>
Check:
1. When x=0, y=-2sin0-1=-1;
2. When
, then
.
Answer:
D ... y= 3,450/ 1=10.13e^-0.2854
Step-by-step explanation:
U probably need to add in a picture