Answer:
$3.02
Step-by-step explanation:
Jenna bought 3 pairs of socks that costed her $2.00 each.
So, $2.00 times the 3 pairs she bought is $6.00.
Jenna also bought a blouse for $5.98
$6.00 from the 3 pairs of socks she bought and $5.98 from the blouse would equal a total of $11.98
Jenna gave the cashier $15.00
$15.00 minus the total of $11.98 is $3.02
Jenna recieved $3.02 back
First we use product rule
y=x^2lnx
dy/dx = x^2 d/dx (lnx) + lnx d/dx (x^2)
dy/dx = x^2 (1/x) + lnx (2x)
dy/dx = x + 2xlnx
now taking second derivative:
d2y/dx2 = 1 + 2[x (1/x) + lnx (1)]
d2y/dx2 = 1 + 2[1+lnx]
1+2+2lnx
3+2lnx is the answer
Step-by-step explanation:
speed = distance/time
we know the speed and the time (11:45am to 1:45pm = 2 hours).
distance = speed × time = 56 m/h × 2 h = 112 miles
The answer is 81. since (-3)^2 is 9. Therefore, 9x9=81.
Answer:
Approximately 6.4
Step-by-step explanation:
We can use the pythagorean thereom here, that tells us (a^2)+(b^2)=c^2. C is the hypotenuse, the side opposite from the right angle, while a and b are the other sides. We can insert 5 and 4 as a and b, and solve for c
:(5^2)+(4^2)=c^2
:25+16=c^2
:41=c^2
:sqrt(41)=6.4=c (We square rooted both sides. 6.4 is only rounded to the nearest hundredths place.) Hope this helps!
