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Reptile [31]
3 years ago
14

Claudia makes an initial deposit of $50 into her bank account. She deposits $20 into the account each week. Let x represent the

number of weeks Claudia makes a deposit, and let y represent the amount of money in her account. Which equation represents the amount of money in Claudia's account after x weeks?
y=20x−50

y=−20x+50

y = 50x + 20

y = 20x + 50
WILL MAKE BRAINLIEST ANSWER
Mathematics
1 answer:
Margarita [4]3 years ago
6 0
The answer would be D. because she has 50 dollars in her account and she adds 20 dollars for x amount of weeks so that will get you y=20x+50
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Answer:

15.98

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We have to use the formula of sum of a G.P. series with common ratio r < 1.

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= 8[1 \times \frac{1-\frac{1}{2^{10} } }{1-\frac{1}{2} } ]

= 15.98 (Answer)

4 0
3 years ago
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Gemiola [76]

Answer:

Yes, the relation is a function.

Step-by-step explanation:

Given:

The equation that represents the cost of riding a cab is given as:

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The above equation represents a line as it is of the form y=mx+b which represents a line with constant slope.

Now, in order to plot this equation, we need at least two points.

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8 0
3 years ago
The question is:
saul85 [17]
f(x) = \sqrt{x+1} \\ y = \sqrt{x+1} \ or \ y^2 = x+1 \ or \ x = y^2 - 1 \\ Therefore, \ f^{-1}(x)=x^2 - 1

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Therefore, (fof^{-1})(a) = (f^{-1}of)(a) = a

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4 0
3 years ago
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