Answer:
a=35 given
b=40
c=110
I couldn't complete see c. Please look at the picture to see what I assumed it to be.
Step-by-step explanation:
Hmmm... I guess a and b are not vertical.
We are given b=180-4a and a=35 so b=180-4(35)=180-140=40.
So b=40.
Isosceles triangles always have congruent base angles. So let's call both of the base angles in the bottom triangle x.
That means x+x+40=180.
We need to solve this for x.
Combine like terms:
2x+40=180
Subtract 40 on both sides:
2x=140
Divide both sides by 2:
x=140/2
Simplify:
x=70
So I'm assuming that c and it's adjacent angle are sitting on a straightedge together which means 70+c=180.
70+c=180
Subtract 70 on both sides:
c=180-70
Simplify:
c=110
Answer:
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Step-by-step explanation:
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The student should have distributed the -3 to both terms in the parenthesis in the first step. so it should’ve been 9x= -6-9y
Mean Absolute Deviation I'm pretty sure. Hope this helped, have a great day! :D
Answer: 7.938 kilometers
Many conversion factors are difficult to remember. Feet to meters would fall into this category. An alternate method to perform this conversion is to use multiple easily remembered steps.
1 foot = 12 inches
1 inch = 2.54 centimeters
100 centimeters = 1 meter
Using these steps we can express a distance in meters from feet as:
distance in m = (distance in ft) x (12 in/1 ft) x (2.54 cm/1 in) x (1 m/100 cm)
distance in m = (distance in ft) x 0.3048 m/ft
Note this gives the same conversion factor as above. The only thing to watch out for is for the intermediate units to cancel out.
