Step-by-step explanation:
what do we need to do ?
just calculate the value of the expression when using the given values for the variables ?
what's the problem ? this is just basic calculation.
2×(-3×2 - 6) - 7×9 = 2×(-6 - 6) - 63 = 2×-12 - 63 =
= -24 - 63 = -87
For this case we can make the following rule of three:
21 ------> 70%
x --------> 100%
Clearing x we have:
x = (100/70) * (21)
Rewriting we have:
x = (10/7) * (21)
x = 30
Thus,
21 is 70% of 30
Answer:
21 is 70% of 30
Rule: Minus 14 for each number.
-35 + 33(-14) = -497
34th term = -497
Answer:
b. How to interpret collected data.
Step-by-step explanation:
This is the concept of application of trigonometry, to get the value of the angles of elevation we use the formula:
tan theta=opposite/adjacent
opposite=9.5 ft
adjacent=29 ft
tan theta=9.5/29
thus:
theta=tan^(9.5/29)
=18.14
therefore the angle of elevation will be:
angle L=18.14 <span />