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son4ous [18]
2 years ago
12

Heyy i need help on this maths q

Mathematics
1 answer:
Vikki [24]2 years ago
6 0

Answer:

:) :D

Step-by-step explanation:

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Adam makes $632 gross income per week and has claimed four allowances. According to the table below, what is Adam’s net income a
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The answer is B(533)
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Kajal holds a ruler in some wavy water. The depth of the water t seconds after she starts measuring it, in cm, is given by D(t)=
Vera_Pavlovna [14]

Answer:

t = 0.77

Step-by-step explanation:

D(t) = 50 - 23 sin(π(t + 0.23))

The value of the sine function has a maximum of -1 and a minimum of 1.

The average value of the sine function is 0.

At maximum sine value:

D(t) = 50 - 23(1) = 50 - 23 = 27

At minimum sine value:

D(t) = 50 - 23(-1) = 50 + 23 = 73

At average sine value of 0:

D(t) = 50 - 23(0) = 50 - 0 = 50

The average depth of the waves is 50 cm.

Now we need to find at what time, t, that occurs.

D(t) = 50 - 23 sin(π(t + 0.23)) = 50

50 - 23 sin(π(t + 0.23)) = 50

-23 sin(π(t + 0.23)) = 0

sin(π(t + 0.23)) = 0

The value of the sine is 0 at 0, π, 2π, ..., nπ

π(t + 0.23) = nπ

t + 0.23 = n

t = n - 0.23

n is all integers, but here we are concerned with the first occurrence after time equals zero, so we want n = 1.

t = 1 - 0.23

t = 0.77

8 0
3 years ago
Can someone pls help me find y
olga_2 [115]

Answer:

TH VALUE OF Y IS......98 DEGREES

Step-by-step explanation:

8 0
3 years ago
A plane flies x mph. How far can it go in y hours?
wel
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What is the solution set?
DochEvi [55]

Answer:

option D(5,3)

Step-by-step explanation:

the correct answer is the last option

8 0
3 years ago
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