The surface of a polyhedron can be found by using the following equation:<span>1. Draw a net of the polyhedron.
</span><span>2. Calculate the area of each face.<span>
</span></span><span><span>3. Add up the area of all the faces.</span></span>
The correct answer is -4.
Answer:
There are 75 ways to form the committee.
Step-by-step explanation:
The order in which the people are chosen is not important, which means that the combinations formula is used to solve this question.
Combinations formula:
is the number of different combinations of x objects from a set of n elements, given by the following formula.
In this question:
Considering the eldest has to be there, 2 men from a set of 6 and 4 boys from a set of 5(excluding the youngest), so:
There are 75 ways to form the committee.
Answer:
27; C; B; D
Step-by-step explanation:
1. B = 120 degrees, and C = 60 degrees. Q = 90 degrees, because B + C = 180 degrees, and the triangle BQC has angle B and angle C bisected. If B = 120 degrees, then the height is equal to 9 sqrt 3, which makes BC equal to 27.
2.C
3. B (You don't actually know if any of the sides are parallel.)
4. D
Answer:
slope is 2 or 2/1 and y intercept is -7
Step-by-step explanation:
y=mx+b
mx= slope
b= y intercept