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3 years ago

HELP ME PLZ I have only ten minutes If ST=15 and RT=40, then RS=

Mathematics

2 answers:

Kryger [21]3 years ago

5 0

Step-by-step explanation:

RS = RT-ST

................

AnnZ [28]3 years ago

4 0

Answer:

RS=25

Step-by-step explanation:

RT-ST=RS

40-15=25

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Solve x/3 = x+2/2. X=

Leni [432]

Answer:

I will assume that the term "x+2/2" is meant to be "(x + 2)/2)." Otherwise the equation would read (x/3) = x + 1

Step-by-step explanation:

(x/3) = (x + 2)/2

x = 3*(x+2)/2 [Multiply both sides by 3]

x = (3x + 6)/2

x = (3/2)x + 6/2

x - (3/2)x = 3

-0.5x = 3

x = -6

====================

Check:

Does (x/3) = (x + 2)/2 for x = -6?

(-6/3) = (-6 + 2)/2

-2 = -4/2

-2 = -2 YES

6 0

2 years ago

Which table shows a proportional relationship between x and y?

Akimi4 [234]

Answer:

First one

Step-by-step explanation:

First choose because they are all multiply by 5

3 0

3 years ago

5x +20 and 9x. Solve for X

Dennis_Churaev [7]

If u were to add 5x+20=9x you’d get x=5

3 0

2 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

Your friend asks you to help him determine the appropriate price to pay for an annuity offering a retirement income of P10,000 a

baherus [9]

Answer:

gsdddddddddddddddd

Step-by-step explanation:

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3 years ago