Domain: [2,∞)
Range: [0, ∞)
hope it helps!
Answer: 65
Step-by-step explanation:
65 mph x 2 = 130 miles in 2 hours
520 total miles - 130 = 390
8 total hours - 2 hours = 6 hours
390 / 6 = 65 ave mph
Answer: y= 0.5x + 5.5
Step-by-step explanation: Y = mx + C
SLOPE INTERCEPT FORM:
First we need to find the slope of the two points. Which is y2-y1 / x2-x1.
8 is Y2 and 2 is Y1. 5 is Y2 and -7 is Y1. Plug those numbers into a calculator and solve. The slope (m) is 1/2 or 0.5
Then we have to find C as the slope intercept form is Y = mx + C. To find C we replace x and y with one of the points, and solve as an algebric equation. C will be 5.5
Answer:
a4 =
5/9
Step-by-step explanation:
a1 = 15 , r =
1/3
, a4 =?
Explanation:
To find a4 we use formula
an = a1 · r
n−1
In this example we have a1 = 15 , r =
1/3
, n = 4. After substituting these values to above
formula, we obtain:
an = a1 · r
n−1
a4 = 15 ·
1
3
4−1
a4 = 15 ·
1
27
a4 =
5
9
