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Leno4ka [110]
3 years ago
9

What is the domain of f(x)=cos(x)

Mathematics
1 answer:
hammer [34]3 years ago
6 0
The domain of f(x) = cos(x) is  ( - infinity , infinity) or all real numbers
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You and your friend play a game. You answer 80% of the questions correctly and your friend answers 0.60 of the questions correct
bezimeni [28]

Answer:

5

Step-by-step explanation:

Assuming both players can answer the same question, the minimum number of questions is the smallest number that when multiplied by either 0.60 or 0.80 yields a whole number.

Let x be the number of questions, solving by trial and error:

if\ x=2\\x*0.8=1.6\\x*0.6=1.2\\\\if\ x=3\\x*0.8=2.4\\x*0.6=1.8\\\\if\ x=4\\x*0.8=3.2\\x*0.6=2.4\\\\if\ x=5\\x*0.8=4\\x*0.6=3\\\\

Therefore, the minimum number of questions in the game is 5.

5 0
3 years ago
If you need only 1 c of milk, what is your best choice at the grocery store- a quart container, a pint container, or a 1/2 gallo
kiruha [24]
I don't know the second on but the first is pint
8 0
3 years ago
Where does the circumference of each kind of triangle lie? Question 1 options: Inside the triangle. Outside the triangle. On the
stiks02 [169]

Answer:

Inside the triangle - Acute Triangle

Outside the triangle - Obtuse Triangle

On the hypotenuse - Right Triangle

Step-by-step explanation:

The <u>circumcenter</u> is the point where the perpendicular bisectors of a triangle intersect.

In the special case of a right triangle, the circumcenter lies exactly at the midpoint of the hypotenuse.

The circumcenter of an acute triangle lies inside the triangle.

The circumcenter of an obtuse triangle lies outside the triangle.

4 0
2 years ago
PLZ HELP MEEEEE!!!! ILL GIVE YOU BRAINLY!!
valkas [14]

Answer:

Step-by-step explanation: -13, 9

8 0
2 years ago
If f(x) = -x + 5 and g(x) = x^2, what is (g*f)(-1)
sasho [114]

Answer:

6

Step-by-step explanation:

(g × f)(x) = g(x) × f(x) = x²(- x + 5)

To evaluate (g × f)(- 1) substitute x = - 1 into the product

x²(- x + 5)

= (- 1)²(- (- 1) + 5)

= 1(1 + 5)

= 1 × 6 = 6

5 0
3 years ago
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