Answer:
70 words.
Step-by-step explanation:
Multiply the number of words he can type in one minute (10) by the number of minutes he is typing for (7).
by pythagorean formula, the last side is √(61)
by cos rule
cos A
A = 39.81
Answer:
Each student gets 2 1/3
Step-by-step explanation:
So you would divide 7 by 3, which you can't...so 6 divided by 3 is 2, and when you split the last one into thirds you can each have 1/3. Add the sections together, and each person gets 2 1/3
Answer:
square
rectangle
quadrilateral
Step-by-step explanation:
Sides are all equal
Draw a triangle with shortest side on the ground (horiz.). The length of this side is 80 feet. Two angles touch the ground: a right angle, and the 70 degree angle.
Then the height of the building is the 2nd shortest side.
The tangent function is the appropriate one to use here:
opp h
tan 70 deg = -------- = ----------
adj 80 ft
h
Since tan 70 deg = 2.75, 2.75 = -------
80 ft
so h = building height = (80 ft)(2.75) = 219.8 ft
