Answer:
a ( copper and nickel
b ( 1034.9
Step-by-step explanation:
Add all the values of melting points
2,651 + -37.89 = 2613.11
2613 + -458 = 2155.11
2155.11 + 1984.32 = 4139.43
Divide the number by the number of numbers: 4139.43/4 = 1034.8575
1034.8575 rounded to the nearest tenth is 1034.9, thats how you find the mean, or the average.
An arithmetic sequence can be expressed as explicitly or recursively
The explicit formula of the sequence is 
<h3>How to determine the explicit formula</h3>
The recursive formula is given as:
Substitute 2 for n in
This gives
Calculate the common difference (d)
The explicit formula is then calculated as:
This gives
Expand
Hence, the explicit formula of the sequence is
Read more about arithmetic sequence at:
brainly.com/question/6561461
Answer:
add x
Step-by-step explanation:
get the constants on one side, and the variables on the other for easiest solving.
Answer:
area=17cm^2
Step-by-step explanation:
Solve the individual boxes first.
2*1=2
3*5=15
2+15=17
17cm^2
Hello.
A direct variation is when one variable affects the other variable. Let's take a look at each table that we've been given.
Table 1:
x = 1, y = 19
x = 2, y = 38
x = 3, y = 57
This table seems to have the effect of when x goes up by 1, y goes up by 19;
1, 19; 2, 38; 3, 57; and so on.
This means at least table 1 has a direct variation with it's variables. But let's continue with table 2 as we have answer choices that say both, neither, or individual tables have direct variations.
Table 2:
x = 5, y = 48
x = 6, y = 72
x = 7, y = 84
This doesn't appear to have a constant direct variation, aside from the first two sets of variables.
This leaves us with our answer:
A.) Table 1 only
I hope this helps!
