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Hoochie [10]
3 years ago
8

A man was surprised when he found an old bank account statement in his mother’s attic. Money had been left for 30 years in a ban

k account paying simple annual interest. The statement showed that originally $500 had been put into the account. When he called the bank, he found that there is now $1550 in the account! What is the annual interest rate?
Mathematics
2 answers:
Luba_88 [7]3 years ago
7 0

Answer:

x = 0.0384

Step-by-step explanation:

500(1+x)^(30)=1550

Tamiku [17]3 years ago
5 0

Answer:

7%

Step-by-step explanation:

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Abbey`s cat weighs 18 pounds. Her dog weighs 2 pounds more than half her cat`s weight. Write and evaluate an expression to show
KATRIN_1 [288]
18 divide by 2 = 9 + 2 = 11 pounds
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3 years ago
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I need help on this question ​
nadezda [96]

Answer:

(12.2,-6.4)

Step-by-step explanation:

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Sampling is necessary because researchers in the social sciences almost never have enough resources — time or money — to collect information about the entire set of subjects of interest to them.

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6 0
2 years ago
1. What is the slope of the line tangent to the curve defined by y2 + xy - x2 = 11x at the point (2, 3)?
andreyandreev [35.5K]

Step-by-step explanation:

By using Implicit Differentiation,

d/dx (y² + xy - x²) = d/dx (11x)

d/dx (y²) + d/dx (xy) - d/dx (x²) = 11

2y * dy/dx + x * dy/dx + y - 2x = 11

dy/dx (2y + x) = 11 + 2x - y

dy/dx = (11 + 2x - y) / (2y + x).

At the point (2, 3), we have x = 2, y = 3.

=> dy/dx = (11 + 2(2) - (3)) / (2(3) + (2))

= 12 / 8 = 1.5.

P.S. Your question is weird because (2,3) is not on the graph, let me know what is the correct question thanks!

7 0
2 years ago
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