Bryan likes to do math problems everyday for practice. He can complete 3 problems in 9 minutes. At that rate, how many problems
2 answers:
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1. BC is 1+3=4 (units)
2. AD is 3+5= 8 (units)
3. Draw the altitude CH from point C, as shown in the figure.
4. Then triangle CHD is a right triangle, with hypothenuse CD, and sides HD and CH.
5.
6. AB=CD=4.47 because the trapezoid is isosceles.
7. P= BC+AD+AB+CD=4+8+4.47+4.47=20.9 (units)
2. AD is 3+5= 8 (units)
3. Draw the altitude CH from point C, as shown in the figure.
4. Then triangle CHD is a right triangle, with hypothenuse CD, and sides HD and CH.
5.
6. AB=CD=4.47 because the trapezoid is isosceles.
7. P= BC+AD+AB+CD=4+8+4.47+4.47=20.9 (units)
Answer:
You can proceed as follows:
Step-by-step explanation:
First solve the quadratic inequality . To do that, factorize, then we have that
. This implies that
or
In the first case the solution is the empty set . In the second case the solution is the interval
. Now we have that
.
To show that consider
. Then
, this implies that
, then
. Now, to show that
consider
, then
, then
, then
, this implies that
.
Observe the image below.
The "cylinder" has a diameter of 6, and therefore its radius is half that, or 3, thus
