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3 years ago

The midpoint of AB is M(1, -1). If the coordinates of A are (7, -4), what are the

Mathematics

1 answer:

Lera25 [3.4K]3 years ago

3 0

Answer:

The point which is the midpoint is equally spaced from both ends of the line. We know the coordinates of A and we know the coordinates of M, the midpoint.

Step-by-step explanation:

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Problem #3: Jamie is decorating 45 cookies for her pirthday party. She decorates 1/3 of the cookies with pink sprinkles. Then sh

Rashid [163]

Since she decorating 45 cookies

Since she decorates 1/3 of them with pink sprinkles

Let us find 1/3 of 45

$\because\frac{1}{3}\times45=15$

Then the remaining = 45 - 15

The remaining cookies = 30

Since she decorates 2/5 of the remaining with heart sprinkles

Let us find 2/5 of 30

$\frac{2}{5}\times30=12$

Then the rest = 30 - 12

The rest = 18

She decorates 18 cookies with blue sprinkles

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1 year ago

Ollie took his four freinds to the movies and the total cost was 65$. What was the price for each ticket.

klio [65]

Answer:

16.25

Step-by-step explanation:

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2 years ago

Read 2 more answers

A parabola can be represented by the equation x2 = -20y.

aliya0001 [1]

Answer:

$\mathrm{Parabola\:focus\:given}\:x^2=-20y:\quad \left(0,\:-5\right)$

Step-by-step explanation:

Given the equation

$x2 = -20y$

A parabola is the locus of points such that the distance to a point the focus equals the distance to a line the directrix.

$4p\left(y-k\right)=\left(x-h\right)^2$ is the standard equation for an up-down facing parabola with vertex at (h, k), and a focal length |p|.

$x^2=-20y$

$\mathrm{Switch\:sides}$

$-20y=x^2$

$\mathrm{Factor\:}4$

$4\cdot \frac{-20}{4}y=x^2$

$4\left(-5\right)y=x^2$

$\mathrm{Rewrite\:as}$

$4\left(-5\right)\left(y-0\right)=\left(x-0\right)^2$

$\left(h,\:k\right)=\left(0,\:0\right),\:p=-5$

Parabola is symmetric around the y-axis and so the focus lies a distance\ p from the center (0, 0) along the y-axis.

$\left(0,\:0+p\right)$

$=\left(0,\:0+\left(-5\right)\right)$

$\mathrm{Refine}$

$\left(0,\:-5\right)$

Therefore,

$\mathrm{Parabola\:focus\:given}\:x^2=-20y:\quad \left(0,\:-5\right)$

Please check the attached figure too.

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3 years ago

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F(x) = x2 + 7 X(2) =

morpeh [17]

Answer:

What is the question?

Step-by-step explanation:

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3 years ago

What is the answer???

Mama L [17]

Remark

There must be 12 such boxes. Each one has a volume of 4 * 4 * 4 = 64 in^3

Proportion

1 box is 64 in^3

12 boxes = x

1/12 = 64/x Cross multiply

x = 12 * 64

x = 768 in^3

Note: We are not concerned with how to stack these boxes. We only want to know the volume.

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3 years ago