Answer:The mean increases but the median stays the same.
Step-by-step explanation:
201 + 233 + 237 +255 +269+277+306 mean is 257 and median is 255
225 +233 + 237 +255 +269+277+306 mean is 260 and median is 255
There is no absolute value an absolute value is like this I 2 I
Answer:
B
Step-by-step explanation:
y2-y1 / x2-x1
2+5/-3-1
-7/4
Answer:
635
Step-by-step explanation:
so basically you need to make an equation to find out what number, when put through all of those operations, will still equal the same number in the end. the way you do that is with an equation. so let's say our starting number is <em>x</em>, since we don't know its value yet.
the final equation is (((((((x/5)+6)/7)-8)9)+114)3)-4 = x
basically it's just x, all those different operations in that order, which is why you need parentheses, equals to x again because it's the same in the end. when you solve that you get 635
Answer:
Step-by-step explanation:
From the given information:

Given that the solution is pumped at a slower rate of 4gal/min
Then:


The differential equation can be expressed as:

Integrating the linear differential equation; we have::


multiplying above integrating factor fields; we have:

![\dfrac{d}{dt}\bigg [ (50 +t)^2 A \bigg ] = 3 (50 +t)^2](https://tex.z-dn.net/?f=%5Cdfrac%7Bd%7D%7Bdt%7D%5Cbigg%20%5B%20%2850%20%2Bt%29%5E2%20A%20%5Cbigg%20%5D%20%3D%203%20%2850%20%2Bt%29%5E2)

A = (50 + t) + c(50 + t)²
Using the given conditions:
A(0) = 20
⇒ 20 = 50 + c (50)⁻²
-30 = c(50) ⁻²
c = -30 × 2500
c = -75000
A = (50+t) - 75000(50 + t)⁻²
The no. of pounds of salt in the tank after 35 minutes is:
A(35) = (50 + 35) - 75000(50 + 35)⁻²
A(35) = 85 - 
A(35) =69.6193 pounds
A(35)
70 pounds
Thus; the number of pounds of salt in the tank after 35 minutes is 70 pounds.