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jeyben [28]
3 years ago
9

Tamara invested $15,000 in an account that pays 4% annual simple interest. Tamara will not make any additional deposits or withd

rawals. How much interest will Tamara earn on her investment at the end of 3 years?
A $1,800
B $600
C $450
D $1,873
Mathematics
1 answer:
STALIN [3.7K]3 years ago
5 0

In 3 years she will earn 1,800.

15,000 x .12=1,800


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Just want to be sure that my answers is right, if anyone can help. thanks
Alexxx [7]
Yep ur answer is right
6 0
3 years ago
Read 2 more answers
Jenny ran 4 4/5 miles on Saturday and 6 2/5 miles on sunday. How many miles should she run on monday if she wants her average ru
LekaFEV [45]

Answer:

3.8 miles

Step-by-step explanation:

Given data

Saturday= 4 4/5 miles= 24/5= 4.8 miles

Sunday= 6 2/5 miles = 32/5=6.4 miles

Monday=  x miles

Average= 5 miles

We know that

Average= Sum of data/Number of data

5= 4.8+6.4+x/3

cross multiply

5*3= 4.8+6.4+x

15= 11.2+x

x= 15-11.2

x=3.8 miles

6 0
3 years ago
Suppose that 30% of all students who have to buy a text for a particular course want a new copy (the successes!), whereas the ot
ValentinkaMS [17]

Answer:

The probability that all 15 will get the type of book they want from current stock is 0.4838.

Step-by-step explanation:

Denote the random variable <em>X</em> as the number of students who want to buy new copy.

The probability of a student wanting to buy a new copy is, P (X) = <em>p</em> = 0.30.

A random sample of <em>n</em> = 15 students is selected.

The random variable <em>X</em> follows a Binomial distribution.

The probability function of a Binomial distribution is:

P(X=x)={n\choose x}p^{x}(1-p)^{n-x};\ x=0, 1, 2, 3,...

It is provided that the bookstore has 10 new copies and 10 used copies in stock.

All the 15 students get their desired copy, then this can happen if at most 10 want to buy new copy and at least 5 wants to buy used copy.

Compute the probability of (5 ≤ <em>X</em> ≤ 10) as follows:

P (5 ≤ <em>X</em> ≤ 10) = P (X = 5) + P (X = 6) + P (X = 7) + P (X = 8) + P (X = 9) + P (X = 10)

                     ={15\choose 5}(0.30)^{5}(1-0.30)^{15-5}+{15\choose 6}(0.30)^{6}(1-0.30)^{15-6}\\+{15\choose 7}(0.30)^{7}(1-0.30)^{15-7}+{15\choose 8}(0.30)^{8}(1-0.30)^{15-8}\\+{15\choose 9}(0.30)^{9}(1-0.30)^{15-9}+{15\choose 10}(0.30)^{10}(1-0.30)^{15-10}\\=0.2061+0.1472+0.0811+0.0348+0.0116+0.0030\\=0.4838

Thus, the probability that all 15 will get the type of book they want from current stock is 0.4838.

6 0
3 years ago
A scientist uses an electron microscope to look at tiny structures called stereocillia, which sits in top of hair cells. The dia
goldenfox [79]

Answer:

<h2>2.5*10^0</h2>

Step-by-step explanation:

To write a number in scientific notation or standard form we write the number and multiply it by 10 to the power of any number

  The proper format for scientific notation is a x 10^b  and it is read "a times 10 to the power of b"

Given the diameter of 2.5

in standard form or scientific notation is 2.5*10^0

6 0
3 years ago
URGENT NEED HELP. What is the approximate length of AB?
ivanzaharov [21]

Answer: 8.5 maybe

Step-by-step explanation: I'm not sure

6 0
2 years ago
Read 2 more answers
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