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nexus9112 [7]
3 years ago
8

Help me out in this question please

Mathematics
1 answer:
stira [4]3 years ago
8 0

Answer:

in this 3 is the correct answer

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In science class, the average score on a lab report is 87 points, with all students scoring within 1.8 points of the average. If
crimeas [40]

The equations which represents the minimum and maximum scores of the students is; x = 87 ± 1.8.

<h3>Which equations represents the minimum and maximum possible scores of each student?</h3>

According to the task content, the

Average score of the students in the science class is; 87 points

All students are within 1.8 points of the average,

it therefore follows from the task content that the

minimum score is;

= 87 -1.8

= 85.2

maximum score is;

= 87+1.8

= 88.8 points.

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8 0
2 years ago
If $11,000 is invested in an account for 25 years. Find the value of the investment at the end of 25 years if the interest is:
Naya [18.7K]

If $11,000 is invested, $33,000 is the value of the investment at the end of 25 years if the interest is 8% simple interest and $75,333.23 is the value of the investment at the end of 25 years if the interest is 8% compounded annually. This can be obtained by using formulas for simple interest and compound interest.

<h3>What is the formulas of simple interest and compound interest?</h3>
  • Simple interest

A = P(1 +Rt/100) , P = principle amount ,R = rate of interest, t = time(in years)

  • Compound interest (annually)

A = P(1 + R/100)^t , P = principal amount, R = rate of interest,                                t = time(in years)

   

<h3>What is the value of investment?</h3>

Given that,  

P = $11,000 , R = 8%,  t = 25 years

  • 8% simple interest

A = P(1 +Rt/100) = 11000(1+\frac{(8)(25)}{100} ) = $33,000

  • 8% compounded annually

A = P(1 + R/100)^t = 11000(1+\frac{8}{100} )^{25} = 11000(1.08 )^{25} = $75,333.23

Hence If $11,000 is invested, $33,000 is the value of the investment at the end of 25 years if the interest is 8% simple interest and $75,333.23 is the value of the investment at the end of 25 years if the interest is 8% compounded annually.

         

     

Learn more about simple interest and compound interest:

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Disclaimer: The question was given incomplete on the portal. Here is the complete question.

Question: If $11,000 is invested in an account for 25 years. Find the value of the investment at the end of 25 years if the interest is:

(a) 8% simple interest

(b) 8% compounded annually

5 0
2 years ago
Determine the coordinates of the vertices of the rectangle to compite the area of the rectangle using the distance formula.​
Veseljchak [2.6K]

Answer:

Step-by-step explanation:

6 0
3 years ago
How do i solve these?
never [62]
1/4

 and 6/4 there we go here is your answer
6 0
4 years ago
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What is the solution to the equation? 2 x squared plus 4 equals 20 Choose all answers that are correct.
Stolb23 [73]
2x^2+4=20\ \ \ \ |subtract\ 4\ from\ both\ sides\\\\2x^2=16\ \ \ \ \ |divide\ both\ sides\ by\ 2\\\\x^2=8\iff x=\pm\sqrt8\\----------------------------\\\sqrt8=\sqrt{4\cdot2}=\sqrt4\cdot\sqrt2=2\cdot\sqrt2=2\sqrt2\ \ \ |use\ \sqrt{a\cdot b}=\sqrt{a}\cdot\sqrt{b}\\-----------------------------\\therefore\ your\ answer\ is\ -2\sqrt2\ and\ 2\sqrt2\to\boxed{a\ and\ c}
8 0
3 years ago
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