MATHEMATICS HIGH SCHOOL

The length of the day in Lagos, Nigeria (in minutes), t days since the beginning of the year can be estimated bythis formula:
L(t) = 727+22 sin
26(t - 80.75)
365
When is the longest day of the year? Give an exact answer.
days since the beginning of the year

Answers

Answer 1
Answer:

Answer:172 days

Step-by-step explanation:

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Answers

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Solve and graph the absolute value inequality: |2x + 4| > 14

Answers

|2x+4| > 14\n\n2x+4 > 14\ \vee\ 2x+4 < -14\n\n2x > 14-4\ \vee\ 2x < -14-4\n\n2x > 10\ \vee\ 2x < -18\n\nx > 5\ \vee\ x < -9\n\nsee\ a\ picture\n\nx\in(-\infty;-9)\ \cup\ (5;\ \infty)
|2x + 4| > 14
2x+ 4 = 14  2x + 4 = -14
x = 5 or x = - 9
2*5 = 10 +4 = 14 Yes
2*-9 = -18 + 4 = - 14 Yes
2x > 10  2x < - 18
X > 5
X < -9

Which equation has an a-value of 1, a b-value of –3, and a c-value of –5?0 = –3x – 5 + x2
0 = x – 3 – 5x2
0 = 3x – 5 – x2
0 = –3x + 5 – x2

Answers

Answer:

Option (a) is correct.

For given values a = 1 , b = -3 , c = -5 the quadratic equation is  0=-3x-5 + x^2

Step-by-step explanation:

Given : a = 1 , b = -3 , c = -5

We have to write the quadratic equation having a = 1 , b = -3 , c = -5 and choose the correct option.

The standard form of quadratic equation is ax^2+bx+c=0 , where a, b, c are constant integers.

Given : a = 1 , b = -3 , c = -5

Then Substitute, we get,

x^2-3x-5=0  

Thus, the obtained quadratic equation is same as option (a) 0=-3x-5 + x^2

Thus, For given values a = 1 , b = -3 , c = -5 the quadratic equation is0=-3x-5 + x^2 

Answer:

a

Step-by-step explanation:

4(-2)² + 8(-2) + 3(-2) + 6 =

Answers

4(−2)2+(8)(−2)+(3)(−2)+6=
(4)(4)+(8)(−2)+(3)(−2)+6=
16+(8)(−2)+(3)(−2)+6=
16+−16+(3)(−2)+6=0+(3)(−2)+6=0+−6+6=
−6+6=
0

If I have a table of cups of flour and cookies and you multiply the number of cups of flour to get the number of cookies which is x and y

Answers