The train is traveling at 57 miles per hour.
Answer:
- 2x + y = - 1 , so the B is correct.
Step-by-step explanation:
+ Because of "the line passing through the pair of points (2,3) and (5,9)", that means the line has the equation y = ax + b where a = (9-3)/(5-2)= 6/3= 2
+ So the equation is y = 2x + b.
+ Then we replace x= 2 and y= 3 into y = 2x + b for finding like:
3 = 2*2 + b or 3 = 4 + b, so we find b = 3 - 4 = - 1.
+ The equation of this line is y = 2x - 1 or in the form:
2x - y - 1 = 0 (or -2x + y = -1)
Have a good day!
I suppose you're supposed to convert 100111 from base 2 to base 10. We have
![100111_2=2^5+2^2+2^1+2^0=32+4+2+1=39_{10}](https://tex.z-dn.net/?f=100111_2%3D2%5E5%2B2%5E2%2B2%5E1%2B2%5E0%3D32%2B4%2B2%2B1%3D39_%7B10%7D)
so the missing number is 39.
Answer:
Your answers 5 :)
Step-by-step explanation:
I took the test and i did it in my head ignore the other person, thanks please mark brainliest!
Answer:
$2668.63
Step-by-step explanation:
If the average of 4 months is $5
Meaning the total sum for 4 months
4×5 =$20
If the average for the year was $1780.75
It means the total sum for a year is;
$1780.75×12 =$21369
This means the money received for the remaining 8 months is;
$21369-$20=$21349
Hence the average income for the remaining 8months is ;
The total amount for 8 months / 8;
$21349/8= $2668.625
$2668.63