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3 years ago

What is the perimeter of a triangle with side lengths of 5 cm, 8 cm, and 9 cm?

Mathematics

1 answer:

IrinaVladis [17]3 years ago

7 0

The answer is 22 cm, you just add up all the sides when doing perimeter

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Help i am in need of help fast pls

mr_godi [17]

Roxy: 42/9 = 4.67

Jordan: 79/18 = 4.39

Rickie: 123/27 = 4.56

Jordan has the lowest number of strokes per hole

Answer

Jordan

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3 years ago

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How can I work this problem in adding integers with counters 5 + (-7)

Monica [59]

$\huge\mathsf\green{Answer}$

$5 + ( - 7) \\ 5 - 7 = - 2$

<h3>hope it would be helpful </h3>

4 0

3 years ago

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

4 0

3 years ago

Which equation represents the slope-intercept form of the line below? y- intercept (0,-5) slope- 1/4

ahrayia [7]

slope intercept form

y =mx+b

y =-1/4 x -5

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3 years ago

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Find the solution to the following system of linear equations.

11Alexandr11 [23.1K]

Answer:

Step-by-step explanation:

because when you replace x and y

you find 4=4

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3 years ago