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enyata [817]
3 years ago
15

Lionel plays trumpet for a minimum of 45 minutes on the days that he practices. If x is the number of days that Lionel practices

and y is the total number of hours he spends practicing, which inequality represents this situation?
y≥0.75x
0.75y≥x
y≤0.75x
0.75y≤x
Mathematics
1 answer:
Lemur [1.5K]3 years ago
4 0

Answer:

y<u>></u>0.75x

Step-by-step explanation:

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I need help I don’t get this.
NemiM [27]

Answer:

whats the question

Step-by-step explanation:

6 0
3 years ago
Integral of 3a^2/1+a^6
Elis [28]
The trick here is to use an appropriate substitution.  Let u=a^3.
Then du/da=3a^2, and du=3a^2da.

We can now make two key substitutions:  In (3a^2)da/(1+a^6), replace 3a^2 by du and a^6 by u^2.

Then we have the integral of du/(1+u^2).

Integrating, we get arctan u + c.  Substituting a^3 for u, the final result (the integral in question) is    arctan a^3 + c.

Check this by differentiation.  if you find the derivative with respect to a of arctan a^3 + c, you MUST obtain the result 3a^2/(1+a^6).



5 0
3 years ago
If X and Y are distinct digits such that the eight-digit number 7448X24Y is divisible by both 8 and 9, then find X - Y.
Talja [164]

The value of X - Y such that the eight-digit number 7448X24Y is divisible by both 8 and 9 is 7

<h3>How to determine the distinct digits X and Y?</h3>

The eight-digit number is given as:

7448X24Y

Also, from the question

The number is divisible by 8 and 9

When a number is divisible by 8, then the last three digits of that number would be divisible by 8.

When a number is divisible by 9, the sum of the digits of the number would be divisible by 9.

So, we have:

24Y is divisible by 8

The possible value of Y from the above statement is 0

This is so because 240 is divisible by 8

The sum of the digits of the number would be divisible by 9.

This means that:

7 + 4 + 4 + 8 + X + 2 + 4 + Y = 29 + X + Y

Substitute 0 for Y

29 + X + Y = 29 + X + 0

Evaluate the sum

29 + X + Y = 29 + X

36 is divided by 9

So, we have

29 + X = 36

Subtract 29 from both sides of the equation

X = 7

So, we have

X = 7 and Y = 0

X - Y is calculated as:

X - Y = 7 - 0

Evaluate the difference in the above equation

X - Y = 7

Hence, the value of X - Y such that the eight-digit number 7448X24Y is divisible by both 8 and 9 is 7

Read more about digits at:

brainly.com/question/26856218

#SPJ1

7 0
1 year ago
What is the average rate of change of f(x) from 8 to 14?
Pachacha [2.7K]
The average rate of change is 0.19

4 0
3 years ago
Read 2 more answers
Lets compare 5/6 and 7/9 also with same denominator
zysi [14]
The common denominator would be 18. So, 5/6 becomes 15/18 and 7/9 becomes 14/18
6 0
3 years ago
Read 2 more answers
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