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2 years ago

If the dimensions of a rectangle with a perimeter of 12 cm are doubled, what will be

Mathematics

1 answer:

exis [7]2 years ago

3 0

Step-by-step explanation:

the perimeter is the sum of the 4 individual sides.

if the sides are doubled, so is the sum of them.

therefore, the new perimeter is then

12×2 = 24 cm

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Find the slope of the line that passes through each pair of points A. (-3,4) and (2,-3)

mote1985 [20]

Answer:

slope = (4-(-3))/(-3-2)=7/-5=- $\frac{7}{5}$

Step-by-step explanation:

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3 years ago

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What is the meaning of the quadratic formula. write it down?

Vlad1618 [11]

Answer:

Quadratic formula is the tool for solving for an unknown number (usually x)

Step-by-step explanation:

The formula is below

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3 years ago

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X + 2y = 8<br> X + 3y = 12

Readme [11.4K]

Answer:

(0,4)

Step-by-step explanation:

Subtract the first equation from the second, obtaining y = 4. Then substitute 4 for y in the first equation, obtaining x + 2(4) = 8; it follows that x = 0.

The solution is (0,4).

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3 years ago

Each pepperoni slice is 78 of an inch long and costs $0.03. Exactly enough pepperoni slices are laid end to end to have a total

Leokris [45]

The total cost of these pepperoni slices is $1.92

<h3>What is the total cost of these pepperoni slices?</h3>

Each slice measures 7/8 of an inch. Here we have N slices, such that the measure of the N slices is 56 inches, then we have:

N*(7/8 in) = 56 in

Now we can find the value of N, the number of slices used:

N = (8/7)*56 = 64

And each slice costs $0.03, then the cost of the 64 slices is:

C = $0.03*64 = $1.92

The total cost of these pepperoni slices is $1.92

If you want to learn more about costs:

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2 years ago

Find the equation of a line that passes through the given points<br>(-6,-5) and (6,-13)

NeTakaya

Answer:

y+5=-3/4(x+6)

or in slope intercept

y= -3/4x-38/4

Step-by-step explanation:

To write the equation of a line we must have a slope and a point. To find the slope we use the slope formula and substitute (x,y) points in it as shown below:

$m=\frac{y_2-y_1}{x_2-x_1}=\frac{-5--13}{-6-6}=\frac{-5+13}{-6+-6}=\frac{8}{-12}=\frac{-3}{4}$

Now that we have the slope, plug in the slope and choose one point to plug into the point slope formula. Use the point-slope form to write the equation, then simplify and convert into the slope intercept form.

(y--5)=-3/4(x--6)

y+5=-3/4(x+6)

y+5=-3/4x-18/4

y=-3/4x-18/4-20/4

y= -3/4x-38/4

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3 years ago

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