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3 years ago

Given that 4 x : 3 = 6 : 5 Calculate the value of x

Mathematics

2 answers:

aksik [14]3 years ago

6 0

Answer:

Step-by-step explanation:

4x = 6/5 * 3

4x = 18/5

x = 18/5*4 = 9 / 10 = 0.9 Ans.

Volgvan3 years ago

5 0

Answer:

0.9 I hope it help you to do this question

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1. When the point is reflected over x-axis, what will<br> the new coordinates of the new point be?

stich3 [128]

Answer:

(x , y) ----> (-x , y)

Step-by-step explanation:

(x , y) ----> (-x , y)

Example for 1. :

(-4,2) ---> (4,2)

4 0

3 years ago

The mean height of married American women in their early twenties is 64.5 inches and the standard deviation is 2.5 inches. The m

SSSSS [86.1K]

Answer:

The equation for regression line and predicting a husband's height for married couples in their early 20s

Equation: Y'=33.67+0.54*X'

Step-by-step explanation:

r=0.5

x'=64.5

Sx=2.5

y'=68.5

Sy=2.7

General regression line equation is:

Y'=a+b*X'

so the slope of the regression line is the linear correlation coefficient multiplied by the standard deviation for y' divided by the standard deviation for x'

$b=r*\frac{S_{y}}{S_{x}}\\b=0.5*\frac{2.7}{2.5}\\b=0.54$

The intercept with axis y is the mean of the decreased by the product of the slope and the mean of x

$a=y'-b*x'\\a=68.5-0.54*64.5\\a=33.67$

The equation regression line then is:

Y'=33.67+0.54*X'

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3 years ago

Ann:my number has two periods.one contains the digits 4,1,and 8 in that order.the other contains the digit 9.

GarryVolchara [31]

The Decimal number system has following rules.

Suppose you have to write a number 4,567,892 .

2 -ones - (first period)

9-tens - (first period)

8-hundreds - (first period)

7-thousands - (second period)

6-ten thousand- (second period)

5-hundred thousand- (second period)

4-million- (third period)

then comes ten million,hundred million and then Billion.

If a number is given you have to apply commas from left to right after every three places.

So, your number is 9,418.

8-first period

1--first period

4--first period

9- second period

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3 years ago

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Ivenika [448]

Answer:

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Step-by-step explanation:

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3 years ago

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grigory [225]

The store made 13,847.30 dollars

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3 years ago

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