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3 years ago

Which statement regarding the function y=cos(x) is true?

Mathematics

2 answers:

Amanda [17]3 years ago

7 0

Cos(x)=cos(-x)-For apex people who are trying to make sure.

MAVERICK [17]3 years ago

6 0

A. cos(x) = cos(-x) [correct, since cos(x) is an even function]
B. Since the cosine function is even, reflection over the x-axis [y-axis] does not change the graph. [false]
C. cos(x) = -cos(x) [ false]
D. The cosine function is odd [even], so it is symmetrical across the origin. [false]

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Write 3x = 66 as a logarithmic function.

Musya8 [376]

Log(3) + log(x)=log(66)
log(x)=log(66)-log(3)
log(x)=log(66/3)
log(x)=log(22)
x=22

7 0

4 years ago

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Tobin is solving the equation 3 (x minus 1.25) = 11.25. His work is shown below.

Bezzdna [24]

Answer:

tobin should have divided by three

Step-by-step explanation:

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3 years ago

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Jake has $200 in his savings account. He works a part-time job and plans on depositing $40 per week into the savings account. Wh

LiRa [457]

Answer:$8,000

Step-by-step explanation:

YEah im too lazy to say hiow i sovled jt

5 0

3 years ago

Add 212+(−13) . Write your answer as a mixed number in simplest form.

nordsb [41]

The value of the given expression after addition is 199 and this can not written as a mixed number in the simplest form.

According to the question,

We have the following expression:

212+(-13)

Now, we know that the multiplication of one negative and one positive integers is always positive.

So, we have the following expression:

212-13

199

Now, this number is whole number and it can not be written as a mixed number. It could only have been written as a mixed number when the result would have been in a fraction.

Hence, the value of the given expression after addition is 199 and this can not written as a mixed number in the simplest form.

To know more about addition here

brainly.com/question/19867930

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7 0

1 year ago

If f(x) = 12x+2, then f^-1(x) =??

olga nikolaevna [1]

Step-by-step explanation:

Given

f(x) = 12x + 2

f^-1(x) = ?

Now

Let y = f(x)

or y = 12x + 2

Interchanging the role of x and y

x = 12y + 2

x - 2 = 12y

y = x - 2

Therefore f^-1(x) = x - 2

Hope it will help you.

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3 years ago

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