Answer:
72.3
Step-by-step explanation:
Given that:
The arithmetic sequence:
The first term of the sequence 
= 3 since k = 0
i.e (3 + 0.26(0)) = 3
The last term of the sequence 
= 6.64
i.e (3+ 0.26(14)
= (3 + 3.64)
= 6.64
Total no of terms = 15 i.e from 0 to 14
∴
The partial sum of the arithmetic sequence = 
= 72.3
Answer:
i wont steal your education so here To find the volume of any cube you need to know the length, width and height. The formula to find the volume multiplies the length by the width by the height. The good news for a cube is that the measure of each of these dimensions is exactly the same. Therefore, you can multiply the length of any side three times.
Step-by-step explanation:
Answer:
Angle 4
Step-by-step explanation:
Exterior is the angle that is on the outside of the triangle.
Answer:
-2.5
Step-by-step explanation:
Here in this question, we are interested in calculating the z-score for a student that had a particular mark at the test
To calculate the z-score, we need to use a mathematical formula
Mathematically;
z-score = (x - mean)/SD
From the question;
x = 76
mean = 86
standard deviation SD = 4
Plugging these values in the equation, we have;
z-score = (76-86)/4 = -10/4 = -2.5
