Answer:
3.67 hours
Step-by-step explanation:
Speed is the ratio of distance to time, it is given by the formula:
Speed = Distance / time
For annike her average speed was 11 miles per hour and she started at 7 am.
At 8 am (time = 1 hr i.e 7 am to 8 am) the distance she would have covered is given as:
11 miles/hr = distance / 1 hr
Distance = 11 miles per hr × 1 hr = 11 miles
After 8 am, the distance traveled at time t is:
11 = distance/t
distance = 11t
Total distance = 11t + 11
For Celia she started at 8 am at 14 miles per hour, at time t, the distance traveled is:
14 = distance/t
Distance = 14t
Given that both bikers traveled the same distance, hence:
14t = 11t + 11
3t = 11
t = 11/3
t = 3.67 hours
Answer: A. x= -1 - 7
B. x= -1+ 7
Step-by-step explanation: or this equation: a=1, b=2, c=-6
1x2+2x+−6=0
Step 1: Use quadratic formula with a=1, b=2, c=-6.
x=−b±√b2−4ac/2a
x=−(2)±√(2)2−4(1)(−6)/2(1)
x=−2±√28/2
x=−1+√7 or x=−1−√7
Let's use 304,900,000 as an example.
In scientific notation it is 3.049 x 10^8
When converting to scientific notation, just drop any zeros at the end of the number and put the decimal place after the first digit. Then for the power on the 10, count all the digits (including zeros). In our example there are 8 digits after the 3 so we raise 10 to the 8th power.
Now let's look at small numbers. For example, 0.0000718
If the number is between 0 and 1, we will raise the 10 to a negative power. In this case the answer is 7.18 x 10^-5.
What you do to find the power is move the decimal point over so that there is one digit in front. Just like we did with the first example. Count how many places the decimal moved and use it for the power.
Hopefully this helps. Let me know if you need further explanation :)
Answer:
Kitchen
25.2
17.4
22.8
21.9
19.7
amp;Master Bedroom
amp;18
amp;22.9
amp;26.4
amp;24.8
amp;26.9
amp;Kitchen
amp;23
amp;19.7
amp;16.9
amp;21.8
amp;23.6
amp;Master Bedroom
amp;17.8
amp;24.6
amp;21
Step-by-step explanation: