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sammy [17]
3 years ago
15

Write an explicit formula for an arithmetic sequence whose common difference is -4.5

Mathematics
1 answer:
makvit [3.9K]3 years ago
3 0
If the difference is always -4.5, then it is always -4.5 times something, so that it changes -4.5 ever 1 number.  This means that our equation is y=-4.5x.  From there, we can add any constant, as it will not change the difference.  I will leave that up to you to pick, so the equation is y=-4.5x+C, where C is any real number.

Hope this helps!
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On a given day, 36 of the 445 students in a school were absent. What was the appproximate absentee rate that day?
Nata [24]

Answer: The approximate absentee rate that day would be 8.09%.

Step-by-step explanation:

Since we have given that

Number of students who were absent = 36

Total number of  students = 445

We need to find the approximate absentee rate that day :

Rate of absentee of that day would be

\dfrac{\text{Number of absentee}}{\text{Total number of students}}\times 100\\\\=\dfrac{36}{445}\times 100\\\\=8.09\%

Hence, the approximate absentee rate that day would be 8.09%.

5 0
3 years ago
Evaluate the expression. 0.1×( – 0.9+ – 0.2÷ – 0.5) Write your answer as an integer or a decimal. Do not round.
matrenka [14]

Answer:

-0.05

Step-by-step explanation:

Given the expression :

0.1×( – 0.9+ – 0.2÷ – 0.5)

Evaluating the bracket :

0.1 * (-0.9 - 0.2 ÷ - 0.5)

Solving the division first

-0.2 ÷ - 0.5 = 0.4

Now we have ;

0.1 * (-0.9 + 0.4)

0.1 * - 0.5

= - 0.05

4 0
2 years ago
Sin Z = <br><br> Cos Z = <br><br> Tan Z =
Daniel [21]

sin z= z/y

cos z= x/y

tan z= z/x

4 0
3 years ago
What is the GCF of 48x4 and 44x5
zepelin [54]
The GCF would be : 4x^4
8 0
3 years ago
Please help me!<br> Hint: the number is negative
wel

Answer:

-36 goes into the box

Step-by-step explanation:

Let the number be x,  then


(m^x)^{\frac{1}{3}}=m^{-12}


We now use the following property of exponents to simplify the left hand side of the equation.

(a^m)^n=a^{mn}

This implies that;

m^{x\times \frac{1}{3}}=m^{-12}


\Rightarrow m^{\frac{x}{3}}=m^{-12}


Since the bases are the same, we equate the exponents to get;


{\frac{x}{3}=-12


We now multiply both sides by 3 to get;


\frac{x}{3}\times 3=-12\times 3


\Rightarrow x =-36


Therefore the number that goes into the box is -36



6 0
3 years ago
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