When <span>constructing a circle circumscribing about a triangle, we bisect any two lines and not angles.
It is not necessary to bisect the three sides.
The most logical mistake the learner could have made are:
</span><span>A. The compass involuntarily changed the radius setting when drawing circle and</span>
<span>C. The altitudes were constructed incorrectly.</span>
Answer:
21 mph
Step-by-step explanation:
The relationship between time, speed, and distance is ...
time = distance/speed
The speed downstream is b+7 if the boat's speed is b. The speed upstream is b-7, and the times in each direction are equal. This means ...
20/(b+7) = 10/(b-7) . . . . . . time in each direction are the same
20(b-7) = 10(b+7) . . . . . . . cross multiply
(20-10)b = 7(10+20) . . . . . add 7(20)-10b
b = 7(20 +10)/(20 -10) = 21 . . . . mph
The speed of the boat in still water is 21 mph.
To find the percentage of cookies baked by Jenny we first have to know how many cookies total there were. 15+18+17=50 cookies all together. The question is asking us "what percentage" (x) "of" (multiply) 50 "is" (equals) 15? Using the variables and numbers only our questiion becomes 50x = 15. Divide both sides by 50 to get x = .3. Since this value is a percentage, we find that percentage by multiplying by 100. 30%.
First, I should point out that g(x) should be written as g(x)=(x+2)/3, otherwise the problem is confusing.
(A) 
(B) Since 
and 
, it holds that
for all x. This means the composed functions are *identical*
