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boyakko [2]
3 years ago
14

1. 100 increased by 99% 2. 75 decreased by 80%

Mathematics
1 answer:
olasank [31]3 years ago
8 0

Answer:

1. 199  

2. 15

Step-by-step explanation:

1. To increase a number by a certain amount, you multiply the number by 0.99 and add it to the original number:

100(0.99)=99

100+99= 199

2. To decrease a number by a certain amount, you can multiply the number by 0.80 then subtract it from the original number:

75(0.80)= 60

75-60= 15

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Find the 17th term in the sequence for which a1 = 10 and d = -3.
yKpoI14uk [10]

Answer:

d. -38

Step-by-step explanation:

Arithmetic sequence concepts:

The general rule of an arithmetic sequence is as follows:

a_{n+1} = a_{n} + d

In which d is the common diference between each term.

We can expand the general equation to find the nth term from the first, by the following equation:

a_{n} = a_{1} + (n-1)*d

In this question:

a_{1} = 10, d = -3

17th term:

a_{17} = a_{1} + (17-1)*d = 10 + 16*(-3) = -38

So the correct answer is:

d. -38

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4 years ago
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Step-by-step explanation:

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4 0
3 years ago
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Evgen [1.6K]
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6 0
3 years ago
Which graph represents the parent function of y=x^2 −5?
hjlf
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