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Irina18 [472]
3 years ago
14

Each student in a class of 25 students wrote down a random digit. What is the predicted number of students who wrote a digit tha

t is greater than 7?
Mathematics
1 answer:
lapo4ka [179]3 years ago
4 0

Answer: 2/10 or 20%

Step-by-step explanation:

2 out of 10 digits are greater than 7, so the probability of choosing these is 2/10.

I could be wrong.

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Which are right triangles??
UNO [17]
To determine if the lengths given create a right triangle you can set up equations. According to Pythagorean Theorem, the square of the longest side would equal the sum of the squares of the smallest 2 sides.

1st given set: 15 + 25 < 64
This CANNOT be a right triangle. The sum of the 2 smallest sides is less than the sum of the longest side.

2nd given set: 64 + 100 < 256
This CANNOT be a right triangle. Again, the sum of the 2 smallest sides is less than the sum of the longest side.

3rd given set: 3,4,5
This CAN be a right triangle. These 3 numbers are multiples of 7, and if you factored 7 out of them you are left with 3,4,5 which is a triple. Triples are combinations of numbers that are guaranteed to create right triangles. 3,4,5 is one of the most basic triples. Hope this helps!
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4 years ago
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4 years ago
Please help fast it’s a test
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Step-by-step explanation:

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4 0
3 years ago
Read 2 more answers
What is 8.478 in expanded form
Nady [450]
Expanded form is the way of writing numbers to see the mathematical value of each individual digit. So the expanded form of 8.478 is 8+0.4+0.07+0.008
3 0
3 years ago
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Find the amount and the compound interest on rupees 5000 for 2 years at 6% per annum, Interest payable yearly. Answer with full
solniwko [45]

Answer:

I. Amount = 5618 Rupees

II. Compound interest = 618 Rupees

Step-by-step explanation:

  • Given the following data;
  • Principal = 5000 Rupees
  • Time = 2 years
  • Interest rate = 6%

To find the compound interest;

Mathematically, compound interest is calculated using the formula;

A = P(1 + r)^t

Where;

  • A is the future value.
  • P is the principal or starting amount.
  • r is annual interest rate.
  • t is the number of years for the compound interest.

Substituting into the formula, we have;

A = 5000(1 + 0.06)^2

A = 5000(1.06)^2

A = 5000 * 1.1236

<em>A = 5618 Rupees</em>

Next, we would determine the compound interest using the formula;

C.I = A - P

C.I = 5618 - 5000

<em>Compound interest (C.I) = 618 Rupees</em>

5 0
3 years ago
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