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Ann [662]
3 years ago
14

Argghhh no ones answering my questions. could SOMEONE please answer theses questions

Mathematics
2 answers:
In-s [12.5K]3 years ago
8 0
Without a calculator


\bf a^{\frac{ n}{ m}} \implies  \sqrt[ m]{a^ n} 
\qquad \qquad
\sqrt[ m]{a^ n}\implies a^{\frac{ n}{ m}}
\\\\\\
~~~~~~~~~~~~\textit{negative exponents}
\\\\
a^{-n} \implies \cfrac{1}{a^n}
\qquad \qquad
\cfrac{1}{a^n}\implies a^{-n}
\qquad \qquad 
a^n\implies \cfrac{1}{a^{-n}}
\\\\
-------------------------------\\\\
3^4\implies 3\cdot 3\cdot 3\cdot 3\implies \boxed{81}
\\\\\\
27=3^3\qquad \qquad \sqrt[3]{27}\implies \sqrt[3]{3^3}\implies 3^{\frac{3}{3}}\implies 3^1\implies \boxed{3}

\bf 2^5\implies 2\cdot 2\cdot 2\cdot 2\cdot 2\implies \boxed{32}
\\\\\\
\left( \cfrac{2}{3} \right)^2\implies \cfrac{2^2}{3^2}\implies \boxed{\cfrac{4}{9}}
\\\\\\
64=4^3\qquad \qquad \sqrt[3]{64}\implies \sqrt[3]{4^3}\implies 4^{\frac{3}{3}}\implies 4^1\implies \boxed{4}
\\\\\\
(-2)^3\implies -2\cdot -2\cdot -2\implies \boxed{-8}
\\\\\\
(0.8)^2\implies 0.8\cdot 0.8\implies \boxed{0.64}

\bf 12100=110^2\qquad \qquad \sqrt{12100}\implies \sqrt[2]{110^2}\implies 110^{\frac{2}{2}}\\\\\\ 110^1\implies \boxed{110}



simplifying into



\bf 7^2\times 7^3\implies 7^{2+3}\implies 7^5\implies \boxed{16807}
\\\\\\
8^2\div 8^5\implies 8^{2-5}\implies 8^{-3}\implies \cfrac{1}{8^3}\implies \boxed{\cfrac{1}{512}}
\\\\\\
9^5\times 9^{-6}\implies 9^{5+(-6)}\implies 9^{-1}\implies \boxed{\cfrac{1}{9}}
\\\\\\
2^{-4}\div 2^{-9}\implies 2^{-4-(-9)}\implies 2^{-4+9}\implies 2^5\implies \boxed{32}
\\\\\\
\stackrel{\textit{anything raised at 0, is 1, only exception being 0 itself}}{6^0\implies \boxed{1}}
mixas84 [53]3 years ago
6 0

Answer:

1. 16807

2: 1/512

3: 1/9

4: 32

5: 1

Step-by-step explanation:

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Find the linear regression equation for the transformed data. x=1,2,3,4,5 y=13,19,37,91,253 log y=1.114,1.279,1.568,1.959,2,403
Talja [164]

Answer:

The answer is OPTION (D)log(y)=0.326x+0.687

<h2>Linear regression:</h2>

It is a linear model, e.g. a model that assumes a linear relationship between the input variables (x) and the single output variable (y)

The Linear regression equation for the transformed data:

We transform the predictor (x) values only. We transform the response (y) values only. We transform both the predictor (x) values and response (y) values.

(1, 13) 1.114

(2, 19) 1.279

(3, 37) 1.568

(4, 91) 1.959

(5, 253) 2.403

X            Y           Log(y)

1              13           1.114

2             19         1.740

3             37        2.543

4             91        3.381

5            253      4.226

Sum of X = 15

Sum of Y = 8.323

Mean X = 3

Mean Y = 1.6646

Sum of squares (SSX) = 10

Sum of products (SP) = 3.258

Regression Equation = ŷ = bX + a

b = SP/SSX = 3.26/10 = 0.3258

a = MY - bMX = 1.66 - (0.33*3) = 0.6872

ŷ = 0.3258X + 0.6872

The graph is plotted below:

The linear regression equation is  log(y)=0.326x+0.687

Learn more about Linear regression equation here:

brainly.com/question/3532703

#SPJ10

6 0
2 years ago
The coordinates of parallelogram PVWZ are P(0, 0), V(-p, q), and W(-p - r, q). Find the coordinates of Z without using any new v
Drupady [299]
For the answer to the question above asking to f<span>ind the coordinates of Z without using any new variables. 
</span>

Vector WZ equals vector VP, which is (p, -q) 
So Z is (-p - r + p, q - q) which is (-r, 0)
I hope my answer helped you. 

3 0
3 years ago
Read 2 more answers
I need a little help here !
Eduardwww [97]
It is a knowledge check
On aleks
4 0
3 years ago
The cost of 2 plates of spaghetti &amp; 1 plate of salad is $27.50. The cost for 4 plates of spaghetti &amp; 3 salads is $59.50.
k0ka [10]

2a+1b=27.50

4a+2b=59.50

Multiply first equation by -4 and the second by 2 so you can drop off the a values then add the equations together.  Then solve for b.  You should get b=6.

Then plug b into one of the original equations and solve for a and you should get 10.75

So a plate of spaghetti is $10.75 and a salad is $6.

<em><u>Please mark brainliest!</u></em>

8 0
3 years ago
Jessica rides the bus 8 and 4/5 miles each day what is the total number of miles she rides in 21 days?
Masja [62]

Answer:

= 184/5

Step-by-step explanation:

converting mixed numbers to fractions, our initial equation becomes,

44/5 × 2/11

Applying the fractions formula for multiplication you get,  

= 924/5

Simplifying 924/5, the answer is

=184 4/5

5 0
4 years ago
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