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Kazeer [188]
2 years ago
11

Where are the minimum and maximum values for f(x)=−2+4cosx on the interval [0,2π]?

Mathematics
1 answer:
Amanda [17]2 years ago
4 0

Answer:

f(x) =  - 2 + 4 \cos(x)  \\ for \: minimum \:  \: x = 0 \\ f(0) =  - 2 + 4 \cos(0)  \\ minimum \: value = 2 \\ for \: maximum \: value \:  \: x = 2\pi \\ f(2\pi) =  - 2 + 4 \cos(2\pi)  \\ maximum \: value =  - 2

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An elevator travels 310 feet in 10 seconds. how far can this elevator travel in 12 seconds?​
anyanavicka [17]

Answer:

372 ft

Step-by-step explanation:

310 divided by 10 is 31 and 31x12 is 372

3 0
2 years ago
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How many balls are in a sack if there are 2 sacks and 4 balls
prohojiy [21]

Answer:

no

Step-by-step explanation:

no

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3 years ago
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Please help! Question above (+10 points)
cricket20 [7]

There are three answers and they are: choice 2, choice 3, choice 5

======================================================

Further Explanation:

Choice 1 is false because the intersection of the altitudes of a triangle leads to the orthocenter.

----

Choice 2 is true because the three medians of any triangle always intersect at the centroid. A median is a line that goes from one vertex to the midpoint of the opposite side. In this case, we go from point E to the midpoint of side CD. The midpoint of CD is found by bisecting segment CD (see choice 5)

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Choice 3 is true. This is effectively the same as choice 5 below. The "perpendicular" aspect does not matter.

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Choice 4 is false. Following the steps mentioned here will create an altitude line (see choice 1)

----

Choice 5 is true. To bisect something is to cut it in half. Let's say that point F is the midpoint of line segment CD. This means that line segment EF is one of the three medians of triangle CDE.

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edit update: I changed choice 3 from false to true

3 0
3 years ago
60 pts!!! HELP Find the inverse of the function f(x)= 4/9 x-4<br> show work
earnstyle [38]

Answer:

Inverse Function: f^-1(x) = 9/4x + 9

Step-by-step explanation:

To find  the inverse function we can interchange the position of the variables x and y, and then solve for y;

y = 4/9x - 4 => x = 4/9y - 4,

x = 4/9y - 4,

4/9y = x + 4,

y = 9/4x + 9/4(4),

y = 9/4x + 9/ f^-1(x) = 9/4x + 9

6 0
2 years ago
L1 : (1, 14) and (1, 2) L2: (5, -2) and (4, 9) A. Parallel B. Neither C. Perpendicular
Masja [62]

answere is (c)perpendicular

8 0
3 years ago
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