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beks73 [17]
1 year ago
9

PLEASE HELP ASAP!! Represent the following expressions as a power of the number a where a≠0.

Mathematics
1 answer:
Step2247 [10]1 year ago
7 0

After using the property of power, the expressions as a power of the number a is (a^3)^{-2} = a^{-6} , (a^{-1}\cdot a^{-2})^{-3} = a^{9} and ((a^2)^{-2})^2=a^{-8} .

In the given question we have to solve the given expressions as a power of the number a where a≠0.

The first given expression is (a^3)^{-2}.

Using the property of multiplication of power; (a^m)^n=a^{mn}.

Simplifying the expression.

(a^3)^{-2} = a^{3*(-2)}

(a^3)^{-2} = a^{-6}

The second expression is (a^{-1}\cdot a^{-2})^{-3}

Using the property of multiplication of power; (a^m)^n=a^{mn}.

(a^{-1}\cdot a^{-2})^{-3} = a^{(-1)\times(-3)}\cdot a^{(-2)\times(-3)}

(a^{-1}\cdot a^{-2})^{-3} = a^{3}\cdot a^{6}

Using the property of sum of power a^m\cdot a^n=a^{m+n}

(a^{-1}\cdot a^{-2})^{-3} = a^{(3+6)}

(a^{-1}\cdot a^{-2})^{-3} = a^{9}

The third expression is ((a^2)^{-2})^2.

Using the property of multiplication of power; (a^m)^n=a^{mn}.

((a^2)^{-2})^2=((a^2)^{(-2)\times2})

((a^2)^{-2})^2=(a^2)^{-4}

Again using the property of multiplication of power; (a^m)^n=a^{mn}.

((a^2)^{-2})^2=a^{2\times(-4)}

((a^2)^{-2})^2=a^{-8}

To learn more about property of power link is here

brainly.com/question/28747844

#SPJ1

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30pts BRAINLIEST please help? also if possible id love to learn how to find the answer so i can do this later on by myself. Than
makkiz [27]
Step 1) Enter the (x,y) pairs of values into a table. In the attached image, this is in columns B and C

Step 2) Make a new column of the squared x values. This is column D in that same attached image

Step 3) Make another column of the x*y values. This is the result of multiplying each (x,y) pair together. This is column E.

Step 4) Add up everything in their respective columns. The sums are highlighted in yellow at the bottom. Those sums are important since we'll use them later. 

Let 
P = sum of the x values = 22
Q = sum of the y values = 56
R = sum of the x^2 values = 75
S = sum of the x*y values = 111

We'll use P,Q,R,S in the formulas below

m = (n*S-P*Q)/(n*R-P^2)
b = (Q - m*P)/n

where m is the slope, b is the y intercept and n is the number of points (in this case, n = 8). The regression line is in the form y = mx+b

So let's compute the slope m first
m = (n*S-P*Q)/(n*R-P^2)
m = (8*111-22*56)/(8*75-22^2)
m = -2.96551724137931
which rounds to m = -3

Then use this m value to find b
b = (Q - m*P)/n
b = (56 - (-2.96551724137931)*22)/8
b = 15.1551724137931
which rounds to b = 15

So y = mx+b turns into y = -3x+15

----------------------------------------

Final Answer: Choice A) y = -3x+15
This regression line is approximate to the nearest whole number

Side Notes:
1) If your teacher doesn't want you using that formula I mentioned above, then you can try looking in your book for similar versions of the formula

2) If your teacher requires you only use two points, then I suggest you find the equation of the line through (1,12) and (4.5,0) to get roughly the same answer if you rounded to the nearest whole number

3) Using a calculator, such as a TI83, will help speed up the process immensely. The LINREG function will automatically find the linear regression equation after you type in the x,y values into the table. Let me know if you need me to go over this in greater detail.

8 0
4 years ago
Round of 1,546 to the<br> nearest thousands
EleoNora [17]

Answer:

1,546 ≈ 2,000

Hope this helps :)

1. To round to nearest thousands, first look at the hundreds place if the number is 1,2,3,4 then round down. If the number is 5,6,7,8,9 then round up.

4 0
1 year ago
Simplify the expression below as much as possible. PLEASE PLEASE HELP ASPA PLEASE THE PROBLEM IS IN THE PICTURE
evablogger [386]

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Step-by-step explanation:

-4i, 4i, and -8i all have their variable in common, therefore -4i + 4i = 0 and 0 + 8i = 8i

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A store has a sale on paper cups, 2 packs for $15.00. There are 100 cups in each pack. During the sale, what is the unit price p
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7.5/100=0.075

0.075$ per cup.

-TheOneandOnly003

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