Answer: d
Step-by-step explanation:
Answer:
y=-2/7x+6
Step-by-step explanation:
first write this in y=mx+b format, y=7/2x−2
then write the perpendicular line, which is the opposite & negative of m
y=−2/7x-2
then remove b
y=−2/7x+b
plug in the numbers
(7,4) y= 4 x=7
4=-2/7*7+b
b is 6
so put the numbers back in
y=-2/7x+6
hope this helps and have a great day
So, first, subtract 2.50 from 6.50 to get 4. Then, do 4 divided by 0.25 to get 16. Then add your fist hour to the 16 and your answer is 17 hours.
9514 1404 393
Answer:
Step-by-step explanation:
The expression you show evaluates to (5/n)(4) = 20/n. Since you're referring to rational exponents, we assume you want to rewrite ...
A root index is the same as a fractional exponent with that index in the denominator. Then this expression is rewritten as ...
Answer:
the length of base and height of shed are 9 cm and 18 cm respectively.
Step-by-step explanation:
let the length of the base be = x ft ( the base is square)
and height be = y ft
given volume o the shed = 1458 cm^3
⇒
also, according to question total cost C
now put y= 1428/x^2 in the above equation
now differentiating we get
now set it equal to zero for most economical cost
on calculating we get x= 9 cm
and y= 18 cm
therefore, the length of base and height of shed are 9 cm and 18 cm respectively.