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3 years ago

6

What is 20 10 times much as .

2 answers:

FinnZ [79.3K]3 years ago

7 0

Answer: 30

Step-by-step explanation:

Rom4ik [11]3 years ago

7 0

Answer:

400

Step-by-step explanation:

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Simplity<br>the ratios<br>a<br>55:12<br>b. 6cm: 126cm:12 cm

iragen [17]

Answer:

A. 55:12

Step-by-step explanation:

Sana nakatulong

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3 years ago

Find the standard form of the equation of the ellipse with the given characteristics. Vertices: (4, 0), (4, 14); endpoints of th

saul85 [17]

Answer:

The standard form of the ellipse is $\frac{(x-4)^{2}}{9} + \frac{(y-7)^{2}}{49} = 1$ .

Step-by-step explanation:

The major axis of the ellipse is located in the y axis, whereas the minor axis is in the x axis. The center of the ellipse is the midpoint of the line segment between vertices, this is:

$(h, k) =\frac{1}{2}\cdot V_{1} (x,y) + \frac{1}{2}\cdot V_{2} (x,y)$ (1)

If we know that $V_{1} (x,y) = (4,0)$ and $V_{2}(x,y) = (4, 14)$ , then the coordinates of the center are, respectively:

$(h,k) = \frac{1}{2}\cdot (4, 0) + \frac{1}{2}\cdot (4,14)$

$(h,k) = (2,0) + (2, 7)$

$(h, k) = (4, 7)$

The length of each semiaxis is, respectively:

$a = \sqrt{(1 - 4)^{2}+(7-7)^{2}}$

$a = 3$

$b = \sqrt{(4-4)^{2}+(0-7)^{2}}$

$b = 7$

The standard equation of the ellipse is described by the following formula:

$\frac{(x-h)^{2}}{a^{2}}+ \frac{(y-k)^{2}}{b^{2}} = 1$

Where:

$h$ , $k$ - Coordinates of the center of the ellipse.

$a$ , $b$ - Length of the orthogonal semiaxes.

If we know that $h = 4$ , $k = 7$ , $a = 3$ and $b = 7$ , then the standard form of the ellipse is:

$\frac{(x-4)^{2}}{9} + \frac{(y-7)^{2}}{49} = 1$

4 0

3 years ago

Write two expressions that are equivalent to the expression below.<br> (9-0) + (9-c) + (9-c) + (9-C)

Nikolay [14]

Step-by-step explanation:

$4(9 - c) \\ 36 - 4c \\ an \: example \: of \: two \: equivalent \\ expression \: includes \: \\ the \: general \: experssion \: \\ and \: then \: the \: one \: that \: \\ the \: one \: that \: is \: factured$

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3 years ago

I will give brainlest

STALIN [3.7K]

Answer:

-360

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

I need help with #8

NikAS [45]

I drew it out. Hope this helps.

7 0

3 years ago