Answer:
It will be 4 hours until the temperatures are the same
Step-by-step explanation:
Let 
represent the temperature in Coldspot in 
hours and
represent the temperature in Frostberg in hours.
From the question,
The temperature in Coldspot is -7° and is increasing 2.5° per hour, then we can write that
Also, from the question,
The temperature in Frostberg is 19° and is decreasing 4° per hour, then we can write that
To determine how long it will be until the temperatures are the same, that is when will be equal to , we will equate the two equations and determine .
will give the number of hours until the temperatures are the same.
Then,
∴ 
Hence, it will be 4 hours until the temperatures are the same.
Answer:
D. goes down and to the right
Step-by-step explanation:
Remark
<u>Two facts.</u>
1) Tan(x) = Sin(x) / Cos(x)
2) Csc(x) and Sin(x) are reciprocal relationships. When multiplied together, they equal 1.
Solution
So Csc(x) * tan(x) = csc(x) * sin(x) / cos(x) = 1/cos(x) = sec(x)
So far what we have is tan^2(x) + sec(x). We have to get rid of tan^2(x)
Use the identity of 1 + tan^2(x) = sec^2(x)
tan^2(x) = sec^2(x) - 1
sec^2(x) - 1 + sec(x)
a^2 + a - 1 <<<<<< Answer
B is the answer.
Answer:
y= between 9-10 patients, round down to 9
Step-by-step explanation:
y= 9/4x + 5
y = 9/4(2) + 5
y = 9.5
y= between 9-10 patients, round down to 9
Answer:
225 cm²
Step-by-step explanation:
dilatation factor = 3 , then
area factor = 3² = 9
the area of the dilated polygon is then 9 times the area of the original so
area of dilated polygon = 9 × 25 = 225 cm²
