the most hard <em><u>question</u></em><em><u> </u></em><em><u>i</u></em><em><u> </u></em><em><u> </u></em><em><u>ever</u></em><em><u> </u></em><em><u>known</u></em><em><u> </u></em><em><u> </u></em><em><u>it</u></em><em><u> </u></em><em><u>need</u></em><em><u> </u></em><em><u>intelligent</u></em><em><u> </u></em><em><u> </u></em><em><u>pupil</u></em><em><u> </u></em>
Answer:
Step-by-step explanation:
= Inner radius
Inner circumference = 4.5 m
= Outer radius
Outer circumference = 4.6 m
h = Height of cylindrical pipe = 8 m
Total surface area to be painted
Cost of painting 1 square meter is 20
Cost of painting the inner and outer surfaces is
The total cost painting the surfaces is .
Answer:
Step-by-step explanation:
-we apply the relationship of chords intersecting within a circle:
-when two chords intersect to form a vertex of an angle within a circle, the measure of the angle is equal to one-half the sum of the measures of the two arcs intercepted by the angle and its vertical angle:
Hence, the measure of ∠AFE is 55°
Answer:
top left choice
Step-by-step explanation:
A car going at a higher speed than a second car will travel more distance in the same amount of time.
Look at the graph. For example, imagine that each grid line on the x-axis is 1 hour. Look at the 5th grid line to the right of the origin. That would mean 5 hours into the trips.
Now imagine that each grid line on the y-axis is 10 miles.
For the low speed car, at 5 hours, it traveled 40 miles.
For the high speed car, it traveled 70 miles in the same 5 hours.
That makes the x-axis the independent variable representing time, and the y-axis the dependent variable representing position.
Answer: top left choice
Answer: (A) Yes
Step-by-step explanation:
Let us look at the side lengths. When we are talking about scale copies, the lengths should stay proportionate from the original shape to the copy.
Both of the figures are triangles. I will be looking at the length of their legs. Figure A has leg lengths of 4 and 3. Figure B has leg lengths of 8 and 6, respectively.
This means Figure B <em>is</em> a scale copy of Figure A because 8/4=2 and 6/3=2. These mean the proportions stayed similar.