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2 years ago

Please help I with give Brainiest if correct

Mathematics

1 answer:

padilas [110]2 years ago

7 0

Answer:

Perimeter of the rectangle = 6 x +20

Perimeter of the rectangle = 0 x² + 6 x + 20

Step-by-step explanation:

Step(i):-

Given that the length of the rectangle = 2x +3

Given that the width of the rectangle = x +7

Perimeter of the rectangle = 2(length + width)

Step(ii):-

Perimeter of the rectangle = 2(length + width)

= 2(2 x +3 + x+7)

= 4x +6+2x+14

= 6 x +20

Final answer:-

Perimeter of the rectangle = 6 x +20

Perimeter of the rectangle = o x² + 6 x + 20

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What the slope and y intercept ? and how did you find it ?

EastWind [94]

Answer:

Slope: $m=4$

y-intercept: $b=-1$

Step-by-step explanation:

The equation of the line in Slope-Intercept form is:

$y=mx+b$

Where "m" is the slope and "b" is the y-intercept.

The slope can be found with the following formula:

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

In this case you can say that:

$y_2=-5\\y_1=11\\\\x_2=-1\\x_1=3$

Knowing this values you can substitute them into the formula and then evaluate, in order to find the slope. This is:

$m=\frac{-5-11}{-1-3}\\\\m=\frac{-16}{-4}\\\\m=4$

By definition, the line intersects the y-axis when the value of "x" is 0.

Notice in the table that when $x=0$ , $y=-1$

Therefore, the y-intercept is:

$b=-1$

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Read 2 more answers

Given that a = -1, b=2 and c= -3 ,find the value of a(b2+c2)

KiRa [710]

Answer:

a( $b^{2}$ + $c^{2}$ ) = = -13

Step-by-step explanation:

Given that a = -1, b=2 and c= -3

find the value of a( $b^{2}$ + $c^{2}$ )

Just substitute the values given for each variable

a( $b^{2}$ + $c^{2}$ ) = (-1)( $2^{2}$ + $(-3)^{2}$ ) ; do the exponents first

a( $b^{2}$ + $c^{2}$ ) = (-1)(4+9)=(-1)(13) ; now add inside the parenthesis;

a( $b^{2}$ + $c^{2}$ ) = -13 ; and multiply by -1

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3 years ago