<span>52 can be broken down to the following
2*26 =52
2*(2*13) <---13 x 2=26 x 2=52
2*2*13 or 2^2*13 <--BOTH mean the same thing :) </span><span>
</span>
Answer:
√85
Step-by-step explanation:
for this, you will probably need to draw a graph. Plot the points, and then you will notice that you can draw a triangle with one side being the x-axis ( go on to (-6,0) then drop down unitll you hit the point (-6;-7)
// use the pythagoream theorem to find the length
the distance of the leg on the x-axis is 6 (calculate 0-(-6))
the distance of the leg that is dropping down is -7 (calculate 0-(-7))
then we have 2 legs and need to find the hypotenuse.
Pythagorean theorem a^2 + b^2 = c^2
substitute :
6^2 + 7^2 = c^2
36+49 = 85
c= √85
15y = 7x + 8
15y - 7x - 8 = 0
i am a mathematics teacher. if anything to ask please pm me
Answer:
263100=2.63
Step-by-step explanation:
263100 is already in the simplest form. It can be written as 2.63 in decimal form (rounded to 6 decimal places).
This problem is mainly concerned with setting up an equation.
let's add the interest rates times their respective investment amounts:
simplify:
sum of interest:
1780 = (9000+x) 0.10 + x 0.06 + (11000-2x)0.08
solution:
He does not have any invested in the 6%, while he has 9000 invested at 10% and 11,000 invested at 8%
to check:
So this ended up being a trick problem because he does not actually have any invested in the 6% option.