Answer:
The $1 coin is made of 92% copper, 6% aluminium and 2% nickel.
Step-by-step explanation:
which metal makes up 6% of the one dollar coin?
The $1 coin is made of 92% copper, 6% aluminium and 2% nickel.
After 7 weeks the plant will 11.25 units tall if the equation for the best-fit line to be y = 2.5 + 1.25x.
<h3>What is the line of best fit?</h3>
A mathematical notion called the line of the best fit connects points spread throughout a graph. It's a type of linear regression that uses scatter data to figure out the best way to define the dots' relationship.

We have a line of best fit:
y = 2.5 + 1.25x
Plug x = 7 weeks
y = 2.5 + 1.25(7)
y = 11.25 units
Thus, after 7 weeks the plant will 11.25 units tall if the equation for the best-fit line to be y = 2.5 + 1.25x.
Learn more about the line of best fit here:
brainly.com/question/14279419
#SPJ1
Answer:
c ≈ 40
Step-by-step explanation:
Using the sine ratio in the right triangle
sin40° =
=
=
( multiply both sides by c )
c × sin40° = 26 ( divide both sides by sin40° )
c =
≈ 40 ( to the nearest whole number )