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3 years ago

The smaller triangle is a dilation of the larger triangle with a center of dilation at (2,−1) .

Mathematics

2 answers:

Doss [256]3 years ago

5 0

Your answer would be B

Stolb23 [73]3 years ago

5 0

Answer:

1/2

Step-by-step explanation:

dilation often means multiplying. it says "dilation of the larger triangle"

the larger triangle has a side of 6 units.

the smaller triangle has a side of 3 units.

if you multiply 6 by 0.5, you get 3.

even though the number gets smaller, you are still multiplying.

now, if it said "dilation of the smaller triangle," we'd have a different answer. in that case, we would have to divide 6 by 3 to get 2.

the answer is 1/2

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Whitepunk [10]

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2 years ago

Evaluate.<br> 3^2 + 12 ÷ (6 - 3) x 8

valentinak56 [21]

Answer:

38 is your answer :)

Step-by-step explanation:

So what you want to do is P.E.M.D.A.S (parenthesis, exponets, multiplication/division, addition/subtraction) * whatever comes first always do it in order*

3^2+12/ (6-3) x 8

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3^2+12/(3)*8

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2 years ago

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3 years ago

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One hundred nautical miles equals about 185 kilometers. To the nearest kilometer, how far in kilometers is 175 nautical miles?

MrMuchimi

Answer:

323.75 km

Step-by-step explanation:

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3 years ago

A cube has a surface area of 486 cm2. What is the side length ?

astraxan [27]

A Cube, has all equal sides, namely, the length, width and height
are all equal to each other

so.. notice the picture added here
you have really, 6 squares, stacked up to each other at the edges

so...what is the Area of one of those squares?
well, if the sides are equal, let's say the side is "x" long, then
the Area is $x\cdot x \implies x^2$

well, you have 6 of those squares, thus $\bf \textit{surface area of a cube}=
\begin{cases}
(x\cdot x)+\\
(x\cdot x)+\\
(x\cdot x)+\\
(x\cdot x)+\\
(x\cdot x)+\\
(x\cdot x)\\
 --------------\\
 x^2+x^2+x^2+x^2+x^2\\
6x^2
\end{cases}
\\\\
\textit{we know the Area is }486\ cm^2\qquad thus
\\\\
\textit{surface area}=6x^2\implies 486=6x^2$

solve for "x", to get one side's length

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3 years ago