Answer:
7.83 * 10^-7.
Step-by-step explanation:
Because the number is < 0 the exponent will be negative. There are 7 digits after the decimal point up to and including the 7, so the exponent is -7.
Answer:
C. y=-2/3x +6
Step-by-step explanation:
The formula for a linear equation is y=mx+b, where m= the slope and b is the y-intercept. The slope is -2/3 because slope equals rise over run and the line goes down 2 then right 3. Finally, the y-intercept must be 6 because the line intersects with the y-axis at the value of 6.
The mean is 7 and the median is 6.5
The explicit formula for arithmetic is given by:
an = a1 + (n-1)d
In the current case,
a5 = 215
a1 = 155
n = 5
Substituting;
215 = 155 + (5-1)d
60 = 4d
d = 60/4 = 15
Then,
a1 = 155
a2 = 155 +(2-1)15 = 170
a3 = 155 + (3-1)15 = 185
a4 = 155 + (4-1)15 = 200
a5 = 215
Therefore, the sequence is:
155,170,185,200,215
