2 years ago

Can someone please help me answer this last one for tonight thanks in advance

1 answer:

4 0

Part a: the first cereal is y=7x and the second one is y=10x so they are $3 apart.

part b: y=7*4 (28) and y=10*4 (40) is $12 apart so she will save $12 each month.

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Find two positive real numbers whose product is a maximum. the sum is 80

Eduardwww [97]

Let's say the numbers are "a" and "b"

thus $\bf y=ab\qquad 
\begin{cases}
a+b=80\\
b=80-a
\end{cases}\implies y=a(80-a)\implies y=80a-a^2\\\\
-----------------------------\\\\
\cfrac{dy}{da}=80-2a$

set the derivative to 0, and check the critical points, there's only one anyway

and do a first-derivative test, to see if it's a maximum

4 0

3 years ago

Read 2 more answers

What is the LCM of 95 and 14

kicyunya [14]

Answer:

LCM of 95 and 14 is 1330

Step-by-step explanation:

refer to the picture for explanation