Answer:
r<-8
Step-by-step explanation:
Answer:
118.2°
Step-by-step explanation:
Supplementary angles are angles that sum up to 180°. 180 - 61.8 = 118.2°, so that's you answer.
Answer:
A
Step-by-step explanation:
We know that
.
We also know that
.
We can combine these facts to get
.
So, the answer is
and we're done!
<em>Note: the non-negative part or the equation comes from the fact that you assume the square root of a negative number doesn't exist. You will change this assumption later in the year, or in further years.</em>
Jiri’s age is 43
Pamela is 5 years younger mean
Mean Jiri is old 5 years, take number of Jiri age minus Pamela age.
-> J-5=P
The sum mean plus
P+J=81
Use substitution for the equation 1 to find the answer.
(J-5) +J=81
2J-5=81
2J=86
J=43