Answer:
d
Step-by-step explanation:
In order for the two triangles to be similar the ratio of each side has to be the same. in answer do the ratios would be 21 to 17.5 and 18 to 15 and both ratios equal 1.2 which means they are similar triangles.
Until the concerns I raised in the comments are resolved, you can still set up the differential equation that gives the amount of salt within the tank over time. Call it
.
Then the ODE representing the change in the amount of salt over time is
and this with the initial condition
You have
Integrating both sides gives
Since
, you get
so the amount of salt at any given time in the tank is
The tank will never overflow, since the same amount of solution flows into the tank as it does out of the tank, so with the given conditions it's not possible to answer the question.
However, you can make some observations about end behavior. As
, the exponential term vanishes and the amount of salt in the tank will oscillate between a maximum of about 100.4 lbs and a minimum of 99.6 lbs.
Answer:
less than is saying that the number is less then a number but saying is less than you could be saying that a number is less then a number
Step-by-step explanation:
less than 7 of the cardigans are white
7 is less than 8
Answer:
All numbers x such that x > 26
Step-by-step explanation:
W - 10 ≤ 16
W ≤ 16 + 10
W ≤ 26
The numbers that are not part of the solution are all numbers x such that x > 26
Answer:
D. 10 square units
Step-by-step explanation:
The area of a triangle is given by the formula ...
A = 1/2bh
__
This triangle has a base of 4 units and a height of 5 units. (These dimensions can be counted from the graph, or found by subtracting coordinate values.) Its area is ...
A = 1/2(4 units)(5 units) = 10 square units
_____
<em>Additional comment</em>
The first two coordinates lie on the line x=0. The length of that segment is the difference of the y-values: 4 -(-1) = 5.
The first and last coordinates lie on the line y=-1. The length of that segment is the difference of the x-values: 4 -0 = 4.