20miles increased by 30%=new mileage added

20x.3= 6

6 miles more than his previous distance so...

6+20= 26

NOTE you can also use 1.3 instead of .3 as the percent to get the answer with out addition.

7 0

2 years ago

Find the sum of the first 8 terms of the sequence. Show all work for full credit.

aliina [53]

$1, -3, -7, -11, ...\ \ \ \ \rightarrow\ \ \ the\ arithmetic\ sequence\\\\the\ difference\ of\ the\ sequence\ is\ \ \ \ d=-3-1=-4\\\\the\ sum:\ \ \ \ S_n= \frac{\big{2\cdot a_1+(n-1)\cdot d}}{\big{2}} \cdot n\\\\\\S_8= \frac{\big{2\cdot1+(8-1)\cdot(-4)}}{\big{2}} \cdot8=(2-28)\cdot4=-26\cdot4=-104\\\\Ans.\ The\ sum\ is\ -104.$

4 0

2 years ago

Read 2 more answers

Given that a trapezoid has the following dimensions, find the area. Area = ________ units2

rjkz [21]

The formula for the area of a trapezoid is A = a+b/2 * h. So just plug in the dimensions.
A = 5 + 3/2 * 5
A = 8/2 * 5
A = 4 * 5
A = 20 units²
I hope this helps love! :)

8 0

3 years ago

Given that <br> x<br> = 7.3 m and <br> θ<br> = 52°, work out AB rounded to 3 SF.

trapecia [35]

Answer:

223hjvfcnv5ctdydxrxr hgho8

6 0

2 years ago