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NeX [460]
3 years ago
8

What symbol do you use for square root on pc?

Mathematics
2 answers:
blondinia [14]3 years ago
8 0

For this case we must find the values of "a" and "b" that make the expressions equivalent:

We have:

\sqrt {\frac {126xy ^ 5} {32x ^ 3}} =

We take common factor "2" from the numerator and denominator:

\sqrt {\frac {2 * (63xy ^ 5)} {2 * (16x ^ 3)}} =

Eliminating common factors of numerator and denominator:

\sqrt {\frac {63y ^ 5} {16x ^ 2}} =

So, we have that the values of a and b are:

a = 16\\b = 2

Answer:

a = 16\\b = 2

Note: To write square root on pc we use sqrt

EleoNora [17]3 years ago
7 0

Answer:

Step-by-step explanation:

Type in "sqrt .... "   or   click on the "omega" icon below for a list of built-in math characters, including  "√"

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Please help (just tell me what i have to put in the blanks, i’ll give credit)
Misha Larkins [42]

Answer:

a. earned: $292.50

b. total: $2,092.50

Step-by-step explanation:

A = 1800 [1 + (0.065 * 2.5)] = 2092.5

A = $2,092.50

To find the amount is earned, subtract the total with how much to started with

2,092 - 1,800 = 292.50

5 0
3 years ago
Simplify the expression
asambeis [7]

Answer:

B

Step-by-step explanation:

given

- 4x²(3x - 7)

multiply each term in the parenthesis by - 4x²

= (-4x² × 3x) + ( - 4x² × - 7)

= - 12x³ + 28x² → B



6 0
3 years ago
Read 2 more answers
Awnser and show your work <3
marishachu [46]

Answer:

Team A: 25 players

Team B: 24 players

Step-by-step explanation:

Team A:

to find the total # of players of the team we need to set up a fraction. 5 out out of an unknown number of players is equal to 1/5, so we set it up as:

\frac{5}{x} = \frac{1}{5}

then we cross multiply to get

x*1 = 5*5

x=25 players

Team B

similarly to Team A

\frac{3}{x} = \frac{1}{8}

cross multiply to get

x*1=3*8

x= 24 players

6 0
3 years ago
PLZ HURRY !!!!! Different shapes are drawn on cards and then the cards are placed in a bag. The number of cards for each shape i
bazaltina [42]
70%
12+27+91 = 130
91/130 = .7
.7x100 = 70%
___
.700
7.00
70.0

Answer is 70%
5 0
3 years ago
Read 2 more answers
Please consider the following values for the variables X and Y. Treat each row as a pair of scores for the variables X and Y (wi
Studentka2010 [4]

Answer:

The Pearson's coefficient of correlation between the is 0.700.

Step-by-step explanation:

The correlation coefficient is a statistical degree that computes the strength of the linear relationship amid the relative movements of the two variables (i.e. dependent and independent).It ranges from -1 to +1.

The formula to compute correlation between two variables <em>X</em> and <em>Y</em> is:

r(X, Y)=\frac{Cov(X, Y)}{\sqrt{V(X)\cdot V(Y)}}

The formula to compute covariance is:

Cov(X, Y)=n\cdot \sum XY-\sum X \cdot\sum Y

The formula to compute the variances are:

V(X)=n\cdot\sum X^{2}-(\sum X)^{2}\\V(Y)=n\cdot\sum Y^{2}-(\sum Y)^{2}

Consider the table attached below.

Compute the covariance as follows:

Cov(X, Y)=n\cdot \sum XY-\sum X \cdot\sum Y

                 =(5\times 165)-(30\times 25)\\=75

Thus, the covariance is 75.

Compute the variance of X and Y as follows:

V(X)=n\cdot\sum X^{2}-(\sum X)^{2}\\=(5\times 226)-(30)^{2}\\=230\\\\V(Y)=n\cdot\sum Y^{2}-(\sum Y)^{2}\\=(5\times 135)-(25)^{2}\\=50

Compute the correlation coefficient as follows:

r(X, Y)=\frac{Cov(X, Y)}{\sqrt{V(X)\cdot V(Y)}}

            =\frac{75}{\sqrt{230\times 50}}

            =0.69937\\\approx0.70

Thus, the Pearson's coefficient of correlation between the is 0.700.

5 0
3 years ago
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