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Shkiper50 [21]
3 years ago
14

What are the zeros of the function f(x) = x2 +64? (Hint: b=0)

Mathematics
1 answer:
Delvig [45]3 years ago
4 0

Answer:

Step-by-step explanation: x=none y= (0,64)

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Outside temperature over a day can be modeled as a sinusoidal function. Suppose you know the temperature is 80 degrees at midnig
Vladimir [108]

Answer:

The equation is given by:

D(t) = 80 + 9\sin{0.2618t}

Step-by-step explanation:

Sine function:

Has the following format:

y = A\sin{bx}

In which A is the amplitude and \frac{2\pi}{b} is the period.

Suppose you know the temperature is 80 degrees at midnight and the high and low temperature during the day are 89 and 71 degrees

This means that the amplitude of the sinusoidal variation function is 89 - 80 = 80 - 71 = 9. This means that A = 9

During a 24-hour day, which means that the period is 24. So

\frac{2\pi}{b} = 24

24b = 2\pi

b = \frac{2\pi}{24}

b = 0.2618

So the variation is:

V(t) = 9\sin{0.2618t}

Assuming t is the number of hours since midnight, find an equation for the temperature, D, in terms of t.

Initial temperature of 80, so:

D(t) = 80 + V(t) = 80 + 9\sin{0.2618t}

8 0
3 years ago
3 times a number xx, subtracted from 1818, is less than -90.?90. Write an inequality for the statement above. Find the solution
Evgen [1.6K]

Answer:

The solution set is: x>36

Step-by-step explanation:

We are given that we have to subtract 3 times of some number 'x' from 18 such that the resulting equation is less than -90.

this means that : 18-3x<-90

on solving the inequality by adding 3x on both side and adding 90 on both side we get that

 108<3x

now on dividing both side by 3 we get that

x>36

Hence our solution set is: x>36


5 0
3 years ago
Read 2 more answers
38 is 8 percent, of what number?
adoni [48]

Answer:

475

Step-by-step explanation:

Is means equals.  We need to change 8% to a decimal.  8% = .08.  Of means multiply.  X is the unknown number.

38 = .08 * x

Divide each side by .08

38/.08 = .08x /.08

475 = x

The unknown number is 475

6 0
3 years ago
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Edward has 18 apples and 16 oranges to share. He has 26 friends in his class. He wants to give each friend one fruit. How many f
jasenka [17]

Answer:

he' ll have 8 fruits left

Step-by-step explanation:

18 + 16  =  34 ,  34-26 = 8

5 0
2 years ago
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Adding fractions and mixed numbers. 5 1/3+12 1/2
Viefleur [7K]

Answer:17 5/6

Step-by-step explanation:

6 0
3 years ago
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