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kompoz [17]
3 years ago
10

Find all solutions to the equation. cos^2x + 2 cos x + 1 = 0

Mathematics
1 answer:
garri49 [273]3 years ago
3 0

Answer:

take a picture of the problem

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Evaluate the expression.<br><br> (132−122)÷5<br> The value of the expression___ is
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The answer is 107.6 pemdas order of operations
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"a card is picked from a standard deck of 52, and then a coin is flipped four times. how many possible outcomes are there?"
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(1/52)(1/2)(1/2)(1/2)(1/2) = 1/832


4 0
2 years ago
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What is the domain and range? Is the relation a function? Explain why or why not. {(2, 0), (5.0), (0.5), (0, 2)}​
agasfer [191]

Answer:

Domain: {0, 2, 5}

Range: {0, 2, 5}

The relation is not a function since the 0 appears more than once as an x-coordinate.

Step-by-step explanation:

The domain is the set of the x-coordinates.

The range is the set of the y-coordinates.

If any value appears more than once as an x-coordinate, it is not a function.

Domain: {0, 2, 5}

Range: {0, 2, 5}

The relation is not a function since the 0 appears more than once as an x-coordinate.

8 0
2 years ago
What is the angle of rotation for the following figure?<br> // pls answer .
Jobisdone [24]

Answer:I THINK 180

Step-by-step explanation: HOPE THIS HELPS

5 0
3 years ago
Tobias's music store bought a piano at the wholesale price of $550. Tobias marked up the price 35%. What was the amount of marku
Mrrafil [7]

Answer:

A.  $58.50

B.  $80

C.  No. The markup was 33 1/3%

Step-by-step explanation:

You are expected to know the relevant relationship is ...

  cost + markup = selling price . . . . also called "store price" in this problem

___

A. The markup is 30% × $45 = $13.50, so the store price is ...

 $45 + 13.50 = $58.50

___

B. When the 30% markup is added to the 100% cost, the selling price is 130% of the cost, or 1.30 times the cost. Here you have ...

 $104 = 1.30 × cost

 $104/1.3 = cost = $80 . . . . . divide by the coefficient of cost

___

C. The markup is $100 -75 = $25, so the markup percentage based on cost is ...

 $25/$75 × 100% = 33 1/3%

This is not 30%.

Step-by-step explanation:

8 0
2 years ago
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