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gladu [14]
3 years ago
7

T(t)T, models the daily high temperature (in Celsius) in Santiago, Chile, t days after the hottest day of the year. Here, t is e

ntered in radians.
T(t)=7.5cos(2π/365t)+21.5


What is the second time after the hottest day of the year that the daily high temperature is 20 degrees celsius?


Round your final answer to the nearest whole day.
Mathematics
1 answer:
erma4kov [3.2K]3 years ago
8 0

Answer:

the answer is 262 days

Step-by-step explanation:

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I need help with this tysm​
erica [24]

9514 1404 393

Answer:

  1. -51
  2. -30
  3. -60
  4. 2 or -2

Step-by-step explanation:

The function puts a minus sign on 3 times the magnitude of the input.

1. y = -|3×17| = -51

2. y = -|3×10| = -30

3. y = -|3×20| = -60

4. -6 = -|3x|

  2 = |x| . . . . divide by -3

  x = ±2 . . . . two possibilities

8 0
3 years ago
How many different arrangements of 5 letters can be made from the 26 letters of the alphabet?
VikaD [51]
Answer: P(26,5).

That is all the possible combinations of 5 letters made out from 26 letters.

That is 26! / [ 5! ( 26 - 5)! ] = 26! / [5! 21! ] = 26*25*24*23*22*21! / [ 5! 21!] =

= 26*25*24*23*22 / [5*4*3*2*1] = 65,780 arrangements.


5 0
4 years ago
Please help I need workings
Aleonysh [2.5K]
So first thing is find the number of small boxes. Find 1% of 120, 1.2. Multiply 1.2 by 35, it’s 42.
Next find what the percent that 2/5 is. Divide two by five, it’s .4 or 40%. We already know one percent is 1.2 so multiply 1.2 by 40, 48.
Add this two.
42+48=90.
120-90=30

Small boxes:42
Medium boxes: 48
Large:30
42*6=252
48*10=480
15*30=450
1182 eggs total.
8 0
4 years ago
Simplifying 23-13 <br>2 ​
strojnjashka [21]

Use photo math, it will help you with your answer a lot more.

7 0
3 years ago
The formula K=C+273.15 converts temperatures from Celsius C to Kelvin K.
Vanyuwa [196]
A. C= K-273.15
b. 300= C+273.15
300-273.15= C
26.85=C
4 0
4 years ago
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