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3 years ago

GEOMETRY SIDE LENGTHS

Mathematics

1 answer:

PilotLPTM [1.2K]3 years ago

3 0

Answer:

I believe that the third answer is correct..... but I'm not positive.

Step-by-step explanation:

if you get the third side of the triangle to be 71 then it would go first. Then it would go to 45-55. And lastly to 71-45

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PLEASE HELP QUICK!!! WILL GIVE BRAINLIEST!

Nonamiya [84]

It's zero, additive inverse means they're opposite numbera

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3 years ago

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Please help me with this problem please?

Alex

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Lily would spend on each type of activity would be 222 minutes.

Step-by-step explanation:

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2 years ago

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Which of the following have the property that a(x)=a−1(x)? I. y=x II. y=1/x III.y=x^2 IV. y=x^3 A. I and II, only B. IV, only C.

valentina_108 [34]

Answer:

Correct answer:

A. I and II

Step-by-step explanation:

First of all, let us have a look at the steps of finding inverse of a function.

1. Replace y with x and x with y.

2. Solve for y.

3. Replace y with $f^{-1}(x)$

Given that:

$I.\ y=x \\II.\ y=\dfrac{1}x \\III.\ y=x^2 \\IV.\ y=x^3$

Now, let us find inverse of each option one by one.

I. y = x, a(x) = x

Replacing y with and x with y:

x = y

x = $a^{-1}(x)$ = $a(x)$ Hence, I is true.

II. $y =\dfrac{1}{x}$

Replacing y with and x with y:

$x =\dfrac{1}{y}$

$x=\dfrac{1}{a^{-1}(x)}$

$\Rightarrow a^{-1}(x) = \dfrac{1}{x}$

$a^{-1}(x)$ = $a(x)$ Hence, II is true.

III. $y =x^{2}$

Replacing y with and x with y:

$x =y^{2}\\\Rightarrow y = \sqrt x\\\Rightarrow a^{-1}(x) = \sqrt{x} \ne a(x)$

Hence, III is not true.

IV. $y =x^{3}$

Replacing y with and x with y:

$x =y^{3}\\\Rightarrow y = \sqrt[3] x\\\Rightarrow a^{-1}(x) = \sqrt[3]{x} \ne a(x)$

Hence, IV is not true.

Correct answer:

A. I and II

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3 years ago

What is the area of a regular octagon with a side length of 4.6 meters and a length from the center to a vertex of 6 meters? HEL

Shtirlitz [24]

What is the area of a regular octagon with a side length of 4.6 meters and a length from the center to a vertex of 6 meters?

Good Morning

The Correct Answer is c) 101.2

Hope I Helped

-Nullgaming650

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3 years ago

A package of cookies, packed , ate the fourth part at breakfast , then 3/5 at tea time. there are still 18 cookies in the pakage

Leno4ka [110]

Ok so
1/4 of total eaten
3/4 left
3/5 of 3/4 eaten
9/20 left
18=9/20 of whole
multiply both sides by 20
360=9 of whole
divide both sides by 9
40=whole

40 total originlly

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3 years ago

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GEOMETRY SIDE LENGTHS​

GEOMETRY SIDE LENGTHS