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Arte-miy333 [17]
2 years ago
14

Which expression is equivalent to (x y) z?

Mathematics
2 answers:
stepan [7]2 years ago
5 0

Answer:

x(yz)

Step-by-step explanation:

(xy)z = x(yz) by the associative property of multiplication.

Answer: x(yz)

padilas [110]2 years ago
3 0

Answer:

x (y z) or C

Step-by-step explanation:

i took the test

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Use a graphing calculator to graph f(x) = x+cos(kx). Use calculus to determine which values of k lead to a function with no loca
nataly862011 [7]

Answer:

Below, you can see the graph of the function:

f(x) = x + cos(k*x)

for different values of k, as follows:

red: k = 1

green: k = 2

orange: k = 0.

Now let's find the values of k such that our function does not have local maxima nor local minima.

First, remember that for a given function f(x), the local maxima or minima points are related to the zeros of the first derivate of f(x).

This means that if:

f'(x0) = 0.

Then x0 is a maxima, minima or an inflection point.

Then if a function is such that the f'(x) ≠ 0 , ∀x, then this function will not have local maxima nor minima.

Now we have:

f(x) = x + cos(k*x)

then:

f'(x) = 1  - k*sin(k*x)

This function will be zero when:

1 = k*sin(k*x)

1/k = sin(k*x)

now, remember that -1 ≤ sin(θ) ≤ 1

then if 1/k is smaller than -1, or larger than 1, we will not have zeros.

And this will happen if -1 < k < 1.

7 0
2 years ago
Solve the combined inequality and describe the graph of the solution.
Vikki [24]
I hope this helps you



4x>-4 x>-1



8x <32 x <4


-1 <x <4
3 0
3 years ago
Press on the picture
scoray [572]
B is the correct answer
7 0
3 years ago
Read 2 more answers
PLEASE HELP QUICK I NEED TO GET THIS DONE!
Vika [28.1K]

the right answer is the second one B

3 0
3 years ago
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One-fifth of the sum of 7 and b minus the product of 4 and m​
deff fn [24]

Answer:

7/5 + b/5 - 4m

Step-by-step explanation:

(1/5)(7 + b) - (4)(m) = 7/5 + b/5 - 4m

4 0
2 years ago
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