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Dmitry [639]
3 years ago
5

Derive the equation of the parabola with a focus at (-5, 5) and a directrix of y = -1.

Mathematics
1 answer:
Gnom [1K]3 years ago
8 0

Answer:

answer is D

Step-by-step explanation:

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Sam invests $6000 in two different accounts. The first account paid 12 %, the second account paid 7 % in interest. At the end of
Lunna [17]

Answer:

The amount in the account at 12% interest is $3400 and the amount in the second account at 7% interest is $2600

Step-by-step explanation:

Let x be the amount in the account at 12% interest

So, 6000-x is the amount in the second account at 7% interest

SI = \frac{P \times T \times R}{100}

First account:SI=\frac{x \times 1 \times 12}{100}

Second account : SI =\frac{(6000-x) \times 1 \times 7}{100}

We are given that At the end of the first year he had earned $590 in interest.

So, \frac{x \times 1 \times 12}{100}+\frac{(6000-x) \times 1 \times 7}{100}=590\\x=3400

So,the amount in the account at 12% interest is $3400

The amount in the second account at 7% interest =6000-x=6000-3400=2600

Hence the amount in the account at 12% interest is $3400 and the amount in the second account at 7% interest is $2600

8 0
3 years ago
Does any one know the answer to this thank you
makvit [3.9K]

Answer:

The First choice

Step-by-step explanation:

8 0
3 years ago
Eddie deposited $1200 into an account that earns 3% interest compounded 2 times per year. How much money will Eddie have in his
nirvana33 [79]
Total = Principal * (1+(rate/n))^n*years
Total = 1,200 * (1.015)^14
Total = 1,200 * <span><span><span>1.2317557307 </span> </span> </span>
<span>Total = 1,478.11</span>
Source:
http://www.1728.org/compint3.htm




8 0
3 years ago
In a statistics class, 10 scores were randomly selected with the following results: 74, 73, 77, 77, 71, 68, 65, 77, 67, 66.What
Lunna [17]

Answer:

We conclude that the lower limit of a box-and-whiskers display is 65.

We conclude that the upper limit of a box-and-whiskers display is 77.

Step-by-step explanation:

Definition: A box-and-whisker plot or boxplot is a diagram based on the five-number summarytext annotation indicator of a data set.

In a statistics class, 10 scores were randomly selected with the following results: 74, 73, 77, 77, 71, 68, 65, 77, 67, 66.

We conclude that the lower limit of a box-and-whiskers display is 65.

We conclude that the upper limit of a box-and-whiskers display is 77.

3 0
3 years ago
Find the slope of the line that passes through (1,5) and (10, 10).
Oliga [24]

Answer:

\frac{5}{9}

Step-by-step explanation:

The formula for the slope with two points given would be

\frac{y_2-y_1}{x_2-x_1}

Substitute

\frac{10-5}{10-1} =\frac{5}{9}

5 0
3 years ago
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