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Marina CMI [18]
4 years ago
11

What't the domain of the cosine function

Mathematics
2 answers:
Stells [14]4 years ago
7 0

Answer:

all real numbers, thank you

Step-by-step explanation:

Schach [20]4 years ago
5 0
The set of all real numbers
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The table below shows function r, which represents the total cost of a field trip to the science museum, in dollars, if n studen
mafiozo [28]

The answer has to be A) r(n) = 15n +55, as when n=0, r(n)=55 so the equation must end with +55.

3 0
4 years ago
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I could really use some help!!!!
Phantasy [73]

Answer:

AD ║ BC

Third option

Step-by-step explanation:

Parallelogram the opposite sides are parallel.

Answer

AD ║ BC

4 0
3 years ago
How many solutions does the following equation have?<br> -6(x + 7) = -4.x - 2
mestny [16]

Answer:

x=-20

Step-by-step explanation:

Given

-6(x+7)= -4x - 2

First of all, we have to solve brackets

So,

-6x-42=-4x-2

To find the solution of this equation, we have to isolate x on one side of the equation.

Adding 4x on both sides

-6x-42+4x = -2-4x+4x

-2x-42 = -2

Adding 42 on both sides

-2x-42+42 = -2+42

-2x=40

Dividing both sides by -2

-2x/2 = 40/-2

x = -20

The equation has only one solution which is x=-20 ..

5 0
3 years ago
Banu is 20 years older than binu. In 5 years, Banu will be twice as old as binu. Find their present age.
Katarina [22]

Answer:

i think Banu is 40 and Binu is 20

Step-by-step explanation:

if Banu was 35 and Binu was 15, 5 years go by Banu is 40 so still 20 years older and Binu is 20, Binu is half the age of Banu.

3 0
3 years ago
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Torres was planning a trip to china. Before going, he did some research and learned that the exchange rate is one Yuan for $0.15
aksik [14]

Answer:

The answer is 2000 yuan.

Step-by-step explanation:

Devise a proportion for this, and then cross-multiply. I believe that is the easiest way.

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3 0
3 years ago
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