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Setler79 [48]
2 years ago
15

On a test of 80 problems, Bill got 75% of the problema correct. How many did he get correct?

Mathematics
1 answer:
vazorg [7]2 years ago
3 0

Answer:

60 problems

Step-by-step explanation:

Find how many he got correct by multiplying 80 by 0.75:

80(0.75)

= 60

So, Bill got 60 problems correct

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In how many ways can you arrange MATHEMATICS if duplication of the arrangement are not allowed?​
sukhopar [10]

Answer:

4989600 ways

Step-by-step explanation:

From the question,

The word MATHEMATICS can be arranged in n!/(r₁!r₂!r₃!)

⇒ n!/(r₁!r₂!r₃!) ways

Where n = total number of letters, r₁ = number of times M appears r₂ = number of times A appears, r₃ = number of times T appears.

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7 0
2 years ago
A child has the magnet numbers 1 through 50 on their fridge. What is the probability that the child will choose a number that is
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2 years ago
How many real roots does the function
icang [17]

Answer:

Option C is correct i.e. 2.

Step-by-step explanation:

Given the function is f(x) = x² +8x -2.

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We can find the number of real root by finding discriminant of the equation ax² +bx +c =0 as follows:-

D = b² -4ac

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6 0
2 years ago
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