2 years ago

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Mathematics

1 answer:

Olin [163]2 years ago

7 0

Answer:

y = 3.5X - 6921.2

Step-by-step explanation:

Given the data :

X :

1990

1992

1994

1996

Y :

Using an online regression calculator ; the regression model obtained is : y = 3.5X - 6921.2

Where ; slope = 3.5 ; intercept = - 6921.2

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Answer:

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Step-by-step explanation:

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Read 2 more answers

3x-1/2y +2 2/3y -5/6x

telo118 [61]

$Solution, 3x-\frac{1}{2}y+\frac{22}{3}y-\frac{5}{6}x=\frac{13x+41y}{6}$

$Steps:$

$\mathrm{Group\:like\:terms}, =3x-\frac{5}{6}x-\frac{1}{2}y+\frac{22}{3}y$

$\mathrm{Add\:similar\:elements:}\:3x-\frac{5}{6}x=\frac{13}{6}x, =\frac{13}{6}x-\frac{1}{2}y+\frac{22}{3}y$

$\mathrm{Add\:similar\:elements:}\:-\frac{1}{2}y+\frac{22}{3}y=\frac{41}{6}y, =\frac{13}{6}x+\frac{41}{6}y$

$\mathrm{Multiply\:}\frac{13}{6}x\::\quad \frac{13x}{6}, =\frac{13x}{6}+\frac{41}{6}y$

$\mathrm{Multiply\:}\frac{41}{6}y\::\quad \frac{41y}{6}, =\frac{13x}{6}+\frac{41y}{6}$

$\mathrm{Apply\:rule}\:\frac{a}{c}\pm \frac{b}{c}=\frac{a\pm \:b}{c}, =\frac{13x+41y}{6}$

The correct answer is $=\frac{13x+41y}{6}$

Hope this helps!!!

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2 years ago

An international phone call costs $6.53 for 48 minutes. How many cents per minute

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Answer:

14 cents

Step-by-step explanation:

6.53/48=

13.604166667

about 14 cents

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What is the period of the function y=-4sin (2/3x-pi?3)?

ad-work [718]

2/3 x = 2 pi
x = 2pi × 3/2 = 3pi

period = 3pi

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2 years ago