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pogonyaev
1 year ago
14

A bank says you can double your money in 8 years if you put $2,000 In a simple interest account. what annual interest rate does

the bank pay?
Mathematics
2 answers:
Monica [59]1 year ago
5 0
A = P*r*t
A = overall value
P = principal (initial value)
r = annual interest
t = time (in years)

Plug in what we have:
4000 = 2000*r*8
Simplify:
0.25 = r
The annual interest is 25%
Viktor [21]1 year ago
3 0

Answer:

the correct answer is 12.5 percent

Step-by-step explanation:

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What is the length of line segment EF if DE is 6ft and DF is 11ft and angle FDE is 40 degrees​
Anna [14]

Answer:

The length of EF = 7.48 feet

Step-by-step explanation:

* Lets consider these tree segment formed triangle DEF

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* So we can use the cos Rule to find the length of the third side

- The cos rule ⇒ a² = b² + c² - 2bc cosA

# a is the side opposite to angle A

# b is the side opposite to angle B

# c is the side opposite to angle C

# Angle A is the including angle between b and c

* In the problem

∵ DE = 6 feet

∵ DF = 11 feet

∵ m∠FDE = 40° ⇒ including angle between DE and DF

  and opposite to EF

- By using cos Rule

∴ (EF)² = (DE)² + (DF)² - 2(DE)(DF) cos∠FDE

∴ (EF)² = (6)² + (11)² - 2(6)(11) cos(40)

∴ (EF)² = 55.882133 ⇒ take square root for both sides

∴ EF = 7.47543 ≅ 7.48 feet

* The length of EF = 7.48 feet

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2 years ago
Carl's dog weighs 2 1/3 times what judy's dog weighs. if judy's dog weighs 35 1/2 pounds, how much does cal's dog weigh?
dangina [55]
Cal's dog weighs approximately 94 pounds.
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2 years ago
Jessica is walking home from a friend’s house. After 2 minutes she is 1.4 miles from home. Twelve minutes after leaving, she is
jonny [76]

let's say 12 min - 2 mins = 10 mins

and 1.4 mile - 0.9 miles = 0.5 miles

Jessica takes 10 mins to walk a distance of 0.5 miles

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=> 0.5 miles*6 = 3 miles

her rate is 3 miles per hour

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2 years ago
Read 2 more answers
Use Bayes' rule to find the indicated probability. The incidence of a certain disease on the island of Tukow is 4%. A new test h
lina2011 [118]
These are the events in the question above:

<span>D - has disease 
</span>
<span>H - healthy (does not have disease) 
</span>
<span>P - tests positive </span>

<span>It is the probability that a person has the disease AND tests positive divided by the probability that the person tests positive.
</span>
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<span>Sick, - [.04*.09] = .0036 </span>

Healthy, + [.96*.04] = 0.0384

<span>Healthy, - [.96*.96] = .9216 

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2 years ago
On a piece of paper, draw a box plot to represent the data below. Then determine which answer choice matches the box plot you dr
Bond [772]

Answer:

The whisker box-plot that represents this data is:

Option: C

Step-by-step explanation:

We have the set of data points as:

11, 12, 15, 16, 17, 19, 22, 24, 29, 33, 38

From these data points we could observe that the:

Minimum value of whisker-box plot is: 11

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Hence, here we have:

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Also, we know that the minimum value of the box represents the lower quartile and it is the median of the lower set of the data and is:

Also lower set of data is:

11, 12, 15, 16, 17

and the middle value of data is: 15

Hence,

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Similarly,

the minimum value of the box represents the upper quartile and it is the median of the upper set of the data.

The upper set of data is:

22,24,29,33,38

and median of the uppers set of data is 29.

Hence,

Upper quartile i..e Q_3=29.

Option: C is the correct answer.

7 0
2 years ago
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