Answer:
Samantha worked 26 hours and Adriana worked 13 hours.
Step-by-step explanation:
Let s = the number of hours that Samantha worked
Let a = the number of hours that Adriana worked
s = 2a
s + a = 39
2a + a = 39
3a = 39
a = 13
The figure has 5 sides, so it must be a pentagon. Pentagon’s interior angles sum up to 540°.
Therefore:
132+90+3x=540
222+3x=540
3x=318
x=106
Checking work, where x=106
222+3(106)=540.
So x°=106°
Hi! Where is the rest of this question
Marcus should have substituted -10for b, not 10
Marcus should have subtracted 4(1)(25) in the square root
This equation, when solved correctly, only has one real number solution
So A, C, D
