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3 years ago

7

Use the graph below to answer the question that follows:

1 answer:

Strike441 [17]3 years ago

3 0

By graphing the given points, we will get the attached figure
which represents:
f(x) = 3 sin x
but sin x = cos (x - π/2)
∴ f(x) = 3 cos ( x - π/2 )

The correct choice is option ⇒⇒⇒ <span>f(x) = 3 cos(x − pi over 2 ) </span>

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The sum of two numbers is 45 . the smaller number is 9 less than the larger number. what are the numbers?

Cerrena [4.2K]

Larger Number: L
Smaller Number: L-9
Larger Number + Smaller Number = 45

L + L - 9 = 45
2L = 54
L = 54/2
L = 27

Smaller Number = L - 9
27 - 9 = 18

Check. .. 27 + 18 = 45. CORRECT!

Larger Number is 27
Smaller Number is 18

7 0

3 years ago

Differentiate Functions of Other Bases In Exercise, find the derivative of the function.

densk [106]

Answer:

The derivative of the function is:

$g'(x) = \frac{1}{1.6094x}$

Step-by-step explanation:

If we have a function in the following format:

$g(x) = \log_{a}{f(x)}$

This function has the following derivative

$g'(x) = \frac{f'(x)}{f(x)*\ln{a}}$

In this problem, we have that:

$g(x) = \log_{5}{x}$

So $f(x) = x, f'(x) = 1, a = 5$

The derivative is

$g'(x) = \frac{f'(x)}{f(x)*\ln{a}}$

$g'(x) = \frac{1}{x*\ln{5}}$

$g'(x) = \frac{1}{1.6094x}$

7 0

3 years ago

mr lim gave $1200 to his mother. he then spent 3/5 of his remaining money on a computer. in the end he had 1/5 of his original a

Harlamova29_29 [7]

Let the original amount be x so ,
according to question,
3x/5 + 1x/5 + 1200 = x
or, 1200 = x - 4x/5
or, 1200 = 1x/5
or, x = 6000

5 0

3 years ago

Tiana's Cafe offers two kinds of espresso: single-shot and double-shot. Yesterday afternoon, the cafe sold 50 espressos in all,

Step2247 [10]

Answer:

I am pretty sure its 43.48%

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2 years ago

Write an equivalent expression in standard form for (x−4)(2x2−3x+9)

Yuri [45]

Answer:

its 21

Step-by-step explanation:

21 21 21 21 21

7 0

3 years ago