The length of side c would be 8.
Step-by-step explanation:
Given that,
a = 4
b = 6
cosC = -1/4
If we are given two sides and angle, the law of Cosines can be used to find the third side:

By inserting the values in the formula, we get



c = 8.
Therefore, the length of side c would be 8.
5 and 3/5 is 5.75 as a decimal
A) 0.59 uses 2 sig figs
B) 100.6 uses 4 sig figs (the zeros in this case are significant)
C) 98.42 uses 4 sig figs
D) 1.045 uses 4 sig figs (the zero is between other sig figs so it's significant)
Every choice but choice A has 4 sig figs. So the answers are B, C, and D
Answer:
148, 32, 32
148, 148, 323
32, 148
Step-by-step explanation:
m<1 = m<4 = m<5 = m< 8 = 180 - 32 = 148 degrees
m<2= m<3 = m<6 = m<7 = 32 degrees
7x+18 = 2x+28
5x = 10
x=2
2*2 +28 = 32
The mean of the score for your answer is 4.4