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kogti [31]
3 years ago
11

Madison deposited $7,000 into an account that earns simple interest. After 36 months, Madison had earned $840 in interest. What

was the interest rate of the account?
Mathematics
2 answers:
PIT_PIT [208]3 years ago
8 0
12 percent you divided 840 by 36 then use the number 23.33 to find the percent
leva [86]3 years ago
7 0

12 percent

Step-by-step explanation:

well because if you divide 840 by 36 you get 23.33 if you divide 840 by 3 its 280, if you divide that by 23.33 you get 12 percent.

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It is a cavity.

Step-by-step explanation:

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6 0
3 years ago
You have a 5-question multiple-choice test. Each question has four choices. You don’t know any of the answers. What is the exper
mrs_skeptik [129]
Each question has four choices, then the probability to guess a correct answer is p= \frac{1}{4} and the probability to select incorrect choice is  q=1-p=1- \frac{1}{4} = \frac{3}{4}.

You have a 5-question multiple-choice test, then n=5. The <span>probability that you will guess exactly three out of five questions correctly is </span>
<span /><span>
</span><span>C_n^kp^nq^{n-k}=C_5^3p^3q^{5-3}= \dfrac{5!}{3!\cdot 2!} \left( \dfrac{1}{4} \right)^3\left( \dfrac{3}{4} \right)^2=\dfrac{1\cdot 2\cdot 3\cdot 4\cdot 5}{1\cdot 2\cdot 3\cdot 1\cdot 2} \cdot \dfrac{9}{1024} =</span>
= \dfrac{90}{1024} = \dfrac{45}{512}.
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6 0
3 years ago
Read 2 more answers
How many one-to-one correspondences are there between two sets with<br><br> 6 elements each?
WINSTONCH [101]

Answer:

6 * 5 * 4 * 3 * 2 * 1, i.e. 6! or 720. Of course, since both sets have the same number of elements, you can't have one-to-one without being onto, aka a surjection, so “one to one correspondence” is the right term (or bijection—merci, M.

Hope it helps >3!

3 0
3 years ago
Read 2 more answers
Basic car costing 26,500 with options costing 725.00. There is a 6% sales tax in the state and a combined 50.00 license and regi
GaryK [48]

26500 + 725 = 27225

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5 0
3 years ago
What is the length of the arc that subtends a central angle of 139°, for a circle with a radius of 7.5 centimeters? Use 3.14 for
eduard
18.19 139/360=x/diameter 
7 0
3 years ago
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