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kow [346]
3 years ago
9

Rewrite with only sin x and cos x. (6 points) cos 2x - sin x

Mathematics
1 answer:
velikii [3]3 years ago
4 0

Answer:

The answer is a. cos2x - sin2x - sin x. Use the rule: cos2x = (cos^2)x - (sin^2)x. So, substitute cos2x in the expression: cos2x - sinx = ((cos^2)x - (sin^2)x) - sinx = (cos^2)x - (sin^2)x - sinx. Therefore, choice a. is correct choice.

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The perimeter of a rectangle is 52 meters. The length is 2 1/4 times the width. What are the dimensions of the rectangle
masya89 [10]

Answer:

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4 0
3 years ago
(A) all values at which F has a local maximum: <br><br> (B) all local maximum values of F:
Bingel [31]

Answer:

  (a) {-3, 2}

  (b) {3, 4}

Step-by-step explanation:

The high points are (-3, 3) and (2, 4).

The x-values at which the function has a local maximum are {-3, 2}.

The local maximum values are {3, 4}.

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6 0
3 years ago
A base of a parallelogram is on the x-axis and the origin is located at the left endpoint of that base. Three consecutive vertic
nlexa [21]
We are given the description of a diagram where the base of a parallelogram lies on the x-axis with the left vertex on the origin. We are also given the three consecutive coordinates of the vertices which are
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4 0
3 years ago
Read 2 more answers
What does 0.2 in the highlighted cell mean?
jarptica [38.1K]

Answer:

Step-by-step explanation:

Answer:

Option B. 20% of her customers ordered appetizer but no dessert.

Step-by-step explanation:

We have to analyze a track report of the customers who ordered an appetizer and dessert.

In this track report highlighted cell is 0.2 which shows appetizer ordered with no order of dessert.

Therefore 0.2 means 20% of the customer ordered an appetizer but no dessert was ordered.

Option B. is the answer.

7 0
2 years ago
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3x-5+2x=15+4x-5 how do I solve this step by step
bezimeni [28]
3x - 5 + 2x = 15+ 4x - 5
5x - 5 = 10 + 4x
5x - 5 + 5 = 10 +5 +4x
5x = 4X + 15
5x - 4x = 4x - 4x + 15
x = 15 
6 0
3 years ago
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