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3 years ago

Please someone help me. I really don’t understand geometry.. it’s confusing :c

Mathematics

1 answer:

RideAnS [48]3 years ago

8 0

So basically the side length went from 3 to 7.5, so we have to find the factor which caused the increase. We have to find what times 3 makes 7.5

So our equation is 3×x=7.5
From here on it's just algebra, we'll divide each side by 3 to isolate x

7.5/3=2.5
x=2.5
So the scale factor applied to the first rectangle is 2.5

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The ratio of boys to girls at the dance was 8 to 4. How many girls were at the dance if there were 88 boys at the dance?

nevsk [136]

88/8=11.

So multiply 4 by 11.

4x11=44

So the ratio is 88:44.

There are 44 girls at the dance

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hope it helps

5 0

3 years ago

H function is even, odd, or neither. b. g(x) = x² - 2 Is it odd or even

o-na [289]

$g(x) = x^2 - 2 \text{ is even function }$

Solution:

Given that,

$g(x) = x^2 - 2$

We have to find whether the above function is odd or even

If a function is: y = f(x)

If f(-x) = f(x), the function is even

If f(-x) = - f(x), the function is odd

Which is,

$\mathrm{Even\:Function:\:\:A\:function\:is\:even\:if\:}f\left(-x\right)=f\left(x\right)\mathrm{\:for\:all\:}x\in \mathbb{R}\\\\\mathrm{Odd\:Function:\:\:A\:function\:is\:odd\:if\:}f\left(-x\right)=-f\left(x\right)\mathrm{\:for\:all\:}x\in \mathbb{R}$

From given,

$g(x) = x^2 - 2$

Replace x with -x

$g(-x) = (-x)^2 - 2\\\\g(-x) = x^2 - 2$

Therefore,

$g(x) = g(-x)$

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3 years ago

Which is the graph of the following equation?

masha68 [24]

Graph D is the answer to this question

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3 years ago

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podryga [215]

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3 years ago

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sammy [17]

Answer:

Step-by-step explanation:

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g(3)=6+2

g(3)=8

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3 years ago