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Natali5045456 [20]
3 years ago
5

What are real numbers? How are real numbers used to solve problems?

Mathematics
1 answer:
Tom [10]3 years ago
3 0

Answer:

The real numbers include all the rational numbers, such as the integer −5 and the fraction 4/3, and all the irrational numbers, such as √2

Real numbers are used in measurements of continuously varying quantities such as size and time, in contrast to the natural numbers 1, 2, 3, …, arising from counting.

Hope this helps!

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Last year, Nahla opened an investment account with $5400. At the end of the year, the amount in the account had increased by 7.5
Inga [223]

Answer:

Step-by-step explanation:

7.5% would be 405. Honestly to find it quickly, i took 10% of 5400,which is 540 and divided that by 4 to get 135 and multiply that by 3 to get 7.5%, which is 405 increase. to get the money total add 405 to 5400 to get 5805

4 0
3 years ago
Please help, anything would be very much appreciated
jasenka [17]

Answer:

answer is 5.50

Step-by-step explanation:

multiply 2.75 times two because 3 by 5 is half of 9 by 15

7 0
2 years ago
Read 2 more answers
Find the value of X, I need help solving this.
kykrilka [37]

Answer:

26

Step-by-step explanation:

add both expressions to equal 90 (bc of the right angle)- x+11+2x+1=90

when you solve, you get x=26

7 0
2 years ago
Read 2 more answers
PLEASE HELP FAST!
ollegr [7]

Given two functions are

f(x) = 2 cos(x)

g(x) = 3 sin(x+ \pi)

We know that the maximum value of cos x and sin x is always 1

y= maximum of cos = 1

y= maximum of sin =1

f(x) = 2 cos(x)

y= 2 (max of cos) = 2(1) = 2

g(x) = 3 sin(x+ \pi)

y= 3 (max of sin) = 3(1) = 3

g(x) = 3 sin(x+ \pi) has the maximum value.

5 0
2 years ago
A contest on a game show receives -25 points for each wrong answer what integer represents the change in periods after three wro
Paladinen [302]
To represent the change in points, you can think of it in two ways:

1.  You will go down 25 points for every wrong answer, so -25 + -25 + -25 would represent what is happening.  They are all negative, so you keeping moving down in value.  

2.  You can also think of this as 3 groups of -25. 

Both answers are -75.  The answer is negative because the change was down in points.

-75 is the integer that represents this situation.
7 0
3 years ago
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