Answer is in the photo. I can only upload it to a file hosting service. link below!
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Step-by-step explanation:
estimate the sums and round the numbers to the neares hundred
You need to substitude the value into the formula given
1/2(3)^3 + 3.4(4)
= 1/2(27) + 13.6
= 27/2 + 13.6
= 27.1
Answer:
A
Step-by-step explanation:
The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.
n is an exterior angle of the triangle.
The 2 opposite interior angles are
180° - 131° = 49° and 180° - 160° = 20°, thus
n = 49° + 20° = 69° → A