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Evgesh-ka [11]
3 years ago
11

Your sister rented a stand and sold T-shirts at your local market. The rent fee is $8. If she can make $2 from every T-shirt, ho

w many T-shirts did she sell when she made a profit of $32?
Mathematics
1 answer:
NNADVOKAT [17]3 years ago
6 0
She had to sell 20 T-shirts
The profit plus the rent fee is $40. Then divide it by the T-shirt price $2. Which equals $20.
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Let f(x) be a func. satisfying f(-x)=f(x) for all real x.if f"(x) exist, find its value.
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Answer:

f''(x)=f''(-x)

Step-by-step explanation:

A function satisfying the equation f(x)=f(-x) is said to be an even function. This denomination comes from the fact that the same relation is satisfied for functions of the form x^{n} with n even. Observe that if f is twice differentiable we can derivate using the chaing rule as follows:

f(x)=f(-x) implies f'(x)=f'(-x)\cdot (-1)=-f'(-x)

Applying the chain rule again we have:

f'(x)=-f'(-x) implies f''(x)=-f''(-x)\cdot (-1)=f''(-x)

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4 years ago
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OleMash [197]

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X-Intercepts: (3, 0) and (-1, 0)

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Domain: All Real Numbers (or negative infinity to infinity)

Range: y > -4

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3 years ago
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Suppose that you draw two cards from a deck. After drawing the first card, you do not put the first card back in the deck. What
AVprozaik [17]

Answer:

The correct answer is 0.05882.

Step-by-step explanation:

A deck of cards have 52 cards, 13 cards of each suit.

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Favorable outcomes are 13 and total number of outcomes are 52.

Thus this probability is \frac{13}{52} = \frac{1}{4}.

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Favorable outcomes are 12 and total number of leftover cards are 51.

Thus this probability is \frac{12}{51}.

Now the probability that both cards are diamonds is \frac{1}{4} × \frac{12}{51} = \frac{3}{51} = \frac{1}{17} = 0.0588235 ≈ 0.05882

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