Answer:
The point (2, -1 ) is not on the graph of the line.
Step-by-step explanation:
3x–4y–12=0
3*2 - 4*(-1) - 12= 0
6 + 4 - 12 =0
10 - 12 = 0
- 2 = 0 , false, so the point (2, -1 ) is not on the graph of the line.
Answer:
this is only worth 40 points not 80
Step-by-step explanation:
make me a brainliest and i will answer maybe
Answer:
$135.98 is the answer after discount and sales tax
Answer:
x = 14
y = 39
A. 114F degrees
Step-by-step explanation:
well for the first one they're asking for a simliar ratio to show the relationship between all of the points
so we must line up and simplify all the points to try and find a simliar ratio
so the ratio is 2/3
because if we simplify 8/12 and 16/24 they both come down to 2/3
so if we plug that in to find x we get x = 14
and then if we that in for y we get y = 39
now for the second question this is a pretty simple addiction subtraction kind of problem but here's some help
if the highest temperature was 93 and the lowest was -21 we just have to find how many degrees are in between those two
therefore leaving us with the answer
A. 114F degrees
hope this helps you out, if it doesnt please make sure to like and give me the brainliest if possible!
thanks have a nice day
Answer:
A. 0.78 g
Step-by-step explanation:
The <em>half-life</em> of F-20 (11 s) is the time it takes for half of it to decay.
After one half-life, half (50 %) of the original amount will remain.
After a second half-life, half of that amount (25 %) will remain, and so on.
We can construct a table as follows:
No. of Fraction Mass
<u>half-lives</u> <u>t/s</u> <u>Remaining</u> <u>Remaining/g
</u>
0 0 1 25
1 11 ½ 12.5
2 22 ¼ 6.2
3 33 ⅛ 3.1
4 44 ¹/₁₆ 1.6
5 55 ¹/₃₂ 0.78
6 66 ¹/₆₄ 0.39
We see that 0.78 g of F-20 remain after five half-lives (55 s).
