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Ainat [17]
3 years ago
15

The length of a rectangle is represented by x+3 and the width by 2x-4. Write an expression for the area of this rectangle

Mathematics
1 answer:
madam [21]3 years ago
5 0

Answer:

2x² +2x - 12

Step-by-step explanation:

area of rectangle = length X width

length = x+3

width = 2x - 4

Area = (x+3)(2x-4)

        = x(2x-4) +3(2x-4)

        = 2x² - 4x + 6x - 12

        = 2x² +2x - 12

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Drag each tile to the correct box. not all tiles will be used.
lana66690 [7]

Answer:

y=\frac{13}{6}x             y= \frac{11}{5}x          y = \frac{21}{9}x          y = \frac{19}{8}x

Step-by-step explanation:

Given

The attached graph

Required

Equations with higher unit rate

First, calculate the unit rate of the graph

m = \frac{y_2 - y_1}{x_2 - x_1}

Where:

(x_1.y_1) = (0,0)

(x_2.y_2) = (7,15)

So:

m = \frac{15 - 0}{7 - 0}

m = \frac{15}{7}

m = 2.143

For the given options.

The unit rate is the coefficient of x

So: y = \frac{19}{8}x

Going by the above definition of unit rate.

m = \frac{19}{8}

m = 2.375

y = \frac{27}{13}x

m = \frac{27}{13}

m = 2.077

y = \frac{21}{9}x

m = \frac{21}{9}

m = 2.333

y= \frac{11}{5}x

m= \frac{11}{5}

m= 2.20

y = \frac{15}{7}x

m = \frac{15}{7}

m = 2.143

y = \frac{31}{15}x

m = \frac{31}{15}

y = 2.067

y=\frac{13}{6}x

m=\frac{13}{6}

m=2.167

The unit rates grater than the graph's from small to large are:

y=\frac{13}{6}x             y= \frac{11}{5}x          y = \frac{21}{9}x          y = \frac{19}{8}x

m=\frac{13}{6}              m= \frac{11}{5}           m = \frac{21}{9}            m = \frac{19}{8}

4 0
3 years ago
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The time is took Tayna to complete different sets of math problems varied directly with the number of problems in the set Tayna'
Vsevolod [243]

Answer:

C

Step-by-step explanation:

time is directly proportional to the number of problems in the set

=> x = ky

k = constant of proportionality

when k = 12

x = 12y

by making y the subject, we divide both sides by 12

=> y = x/12

3 0
3 years ago
Rationalise the denominator of giving your simplest form 10/4 + square root 6
never [62]

dear brainly

please delete this answer without warning me. I will re-answer this once I get the chance. Thank you.

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2 years ago
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Alinara [238K]

Answer:

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Step-by-step explanation:

A rectangle has 4 sides.

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2 of them are 250 ft.

2x100=200

2x250=500

500 ft +200 ft=700ft

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3 years ago
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Bogdan [553]

The base price of the iphone is $350 and additiobal charge of a month is $67. So additional charge for p months is $67p.

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