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valkas [14]
3 years ago
9

Find the domain and range of f(x) = |x| + cosx

Mathematics
1 answer:
Rasek [7]3 years ago
3 0

Answer:

D. domain: (-infinity, infinity); range: [1, infinity)

Step-by-step explanation:

The domain is the values that x can take

The domain is (-infinity, infinity)

The range is the values that y can take

absolute value is 0 or greater

cos x is from -1 to 1

The minimum value is when x=0

The smallest value is 1 and the largest is infinity

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The average of 11 numbers in a list is 14. If the average of 9 of the numbers in the list is 9, than what is the average of the
liberstina [14]
Total value of 11 numbers
14*11
154

Total value of 9 numbers
9*9
81

Total value of other 2 numbers
154 - 81
73

So average of other 2 numbers
73 / 2
36.5
3 0
3 years ago
Help plzzzzzzzzzzzzz
ZanzabumX [31]
1 1/2 * 3/4 = 

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4 0
3 years ago
Which function has the largest y - intercept?
lesantik [10]
F(x) is a quadratic. The y intercept, therefore, is equal to the c value.
The y intercept here is -4.
For g(x), you can tell that the y intercept is 0 because that's the value of y when the x value is 0.
For h(x), the chart specifies that when x=0, y=-2, so the y intercept is -2.
Of these three values, 0 is the largest.
Final answer: g(x)
7 0
3 years ago
One student can paint a wall in 20 minutes. Another student can paint the same wall in 30 minutes. Working together, how long wi
Katarina [22]

1) in one minute for first  wiil be 1/20

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if in one min they make 1/12 then  in 12  min they  paint all the wall

5 0
3 years ago
Find the dot product of U and V <br><br> u=7i, v = -2i + 5j
alexandr1967 [171]

Answer:

-14

Step-by-step explanation:

Multiply the is together. Multiply the j's together. Add the answer. The answer is a scalar.

(7 × -2) + (5 × 0)

= -14

6 0
3 years ago
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