Answer:
Step-by-step explanation:
The amplitude (A) and the mean (M) temperature are given by:
The mean temperature, 45 degrees. occurs at midnight (t=0) and the frequency is f=24h. Therefore, the temperature D, in degrees, as a function of t, in hours, is:
Using pythagorean identity:
Divide both sides by cos²:
Replace the given values:
Answer:
Answer:
A student who has many absences has a decrease in grades.
Step-by-step explanation:
10 small boxes and 11 large boxes were shipped.
Step-by-step explanation:
Given,
Total boxes shipped = 21
Total volume of shipped boxes = 342 cubic feet
Volume of each small box = 10 cubic feet
Volume of each large box = 22 cubic feet
Let,
Number of small boxes = x
Number of large boxes = y
According to given statement;
x+y=21 Eqn 1
10x+22y=342 Eqn 2
Multiplying Eqn 1 by 10
Subtracting Eqn 3 from Eqn 2
Dividing both sides by 12
Putting y=11 in Eqn 1
10 small boxes and 11 large boxes were shipped.
Keywords: linear equation, subtraction
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Answer:
The correct answer is option A. 25°
Step-by-step explanation:
From the figure we can see an isosceles triangle. FGE
<G = 65° (given)
m<G = m<E = 65°
<u>To find the value of m<HFE</u>
Consider the triangle FHE in the figure we get,
m<E + m<HFE + m<FHE = 180
m<HFE = 180 - (m<E + m<FHE)
= 180 - (65 + 90) = 25°
Therefore m<HFE = 25°
The correct answer is option A. 25°