Answer:
A=90°,B=90°,C=90°,D=90°
Step-by-step explanation:
all of the numbers A-D add up to 360°
Answer:
2.09 sq. units
Step-by-step explanation:
We can simply use the formula for area of a sector of a circle.
Area of sector = 
Where 
is the angle and r is the radius.
<em>It is given that the angle is 15 and radius is 4. We plug them in and find the area:</em>
<em>
</em>
<em />
<em>Thus area of sector is 2.09 sq. units.</em>
Answer:
3 pages per minute
Step-by-step explanation: hope this helps.
Answer:
None of them are correct. They only thought of combining like terms, which isn't the case.
Step-by-step explanation:
(3^5 6^8)(3^9 6^10) =
(3^5+9) + (3^5 6^10) + (6^8 3^9) + (6^8+10) =
3^14 + (3^5 6^10) + (6^8 3^9) + 6^18
Five years ago:
Peter= P-5
Sam = S-5
Peter was 3 times older than Sam, which means that (P-5) = 3(S-5)
P-5 = 3S-15
So, the equation that would complete the system is C. P - 5 = 3S - 15
P-5 = 3S-15
P-3S = -15+5
P-3S = -10
So, now we use two equations: P-3S = -10 and the original one P+S=30
P-3S=-10
P+S=30 (to simplify the equation, multiply it by -1)
P-3S=-10
-P-S=-30
__________
0P-4S=-40
-4S=-40
4S=40
S=40/4
S=10
P+S=30
P+10=30
P=20
This means that Pete is 20, and Sam is 10. Hope this helps!
