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Setler79 [48]
2 years ago
12

Solve for x. 9 11 13 7

Mathematics
1 answer:
laila [671]2 years ago
8 0

Answer:

X is equal to 13

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2. Solve the quadratic equation by completing the square.
Paraphin [41]

The roots of the quadratic equation are:

x = 0.74 - 0.6614i

x = 0.74 + 0.6614i

The given equation is:

2x² + 2 = 3x

Rearrange the equation

2x² -3x = -2

Divide through by 2

x² - (3/2)x = -1

x² - (3/2)x + (3/4)² = -1 + (3/4)²

(x - 3/4)² = -7/16

Square root both sides

x - 3/4 = √(-7/16)

x = 3/4 ± √(-7) / 4

x = 0.75 ± i√(7) / 4

x = 0.74 ± 0.6614i

Therefore, the roots of the quadratic equation are:

x = 0.74 - 0.6614i

x = 0.74 + 0.6614i

Learn more here: brainly.com/question/13981588

8 0
2 years ago
A store brought a case of disposable cameras for $300. The store's profit p on the cameras is a function of the number c of came
rewona [7]

Answer:

Range: {-300, -210, 0, 72}

Step-by-step explanation:

Given:

Cost price of each camera = $300

The function for profit 'p' is given as:

p=6c-300

Where, 'p' is the profit and 'c' is the number of cameras sold.

The domain of the function is: {0, 15, 50, 62}

Now, range is the output of the above function for the given domain.

Here, 'c' is the independent variable and hence the domain.

So, plugging in the values of 'c' in the above function will give the set of values of range.

For c=0, the profit is given as:

p(0)=6(0)-300\\p(0)=-300

For c=15, the profit is given as:

p(15)=6(15)-300\\p(15)=90-300=-210

For c=50, the profit is given as:

p(50)=6(50)-300\\p(50)=300-300=0

For c=62, the profit is given as:

p(62)=6(62)-300\\p(62)=372-300=72

Therefore, the range of the given function is: {-300, -210, 0, 72}

The above range represents the profit of the store when 'c' number of cameras are sold. The domain represents the number of cameras that are sold by the store.

So, negative profit means the store has a loss on selling that number cameras.

The store suffers loss upto 50 cameras sold. When the number of cameras sold is 50, there is neither loss not profit. At this point, total cost price equals total selling price. This is also break even point.

After this point, the store will have a net profit. So, for 62 cameras sold, the net profit of the store is $72.

6 0
3 years ago
An experiment was conducted to test the effect of a new cholesterol medicine. Fifteen people were treated with medicine X and 15
Alekssandra [29.7K]

Answer:

E

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Trevon is making payments on a computer that costs $1548. If he makes 12 equal payments, how much is three of his payments?
sammy [17]

Answer:

The answer is 387. Let's see why.

Step-by-step explanation:

The computer costs $1548. And all the 12 payments are <u>equal.</u>

To find one payment we need to divide the total cost to the number of payments.

\frac{1548}{12} = 129

Each one of the payments is $129.

To find three payment we simply follow:

129 . 3 = <u>387</u>

Another solution can be;

Since we are looking for 3 of the payments we can divide it to the total payment

\frac{3}{12} which equals to \frac{1}{4}

And we can find the answer by multiplying it with the cost which gives;

\frac{1}{4} . 1548 =387

4 0
3 years ago
Mike has 34 of a pound of ham. He wants to make 8 sandwiches. If he uses the ham equally, how much ham will be on each sandwich?
jekas [21]
34÷8= 4.25 pounds of ham
7 0
3 years ago
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