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2 years ago

Luna I made the trip to the moon in . In this activity, you will determine the average speed of Luna I using division.

Mathematics

1 answer:

-Dominant- [34]2 years ago

4 0

Hi! Did you mean to add a picture to your comment?

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Which of the following is not part of the Converse of the Triangle Proportionality Theorem?

beks73 [17]

D. A perpendicular line to one side of a triangle <span>is not part of the Converse of the Triangle Proportionality Theorem

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3 years ago

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The x-intercepts of a parabola are 5 and -7. What is the equation of the axis of symmetry?

zloy xaker [14]

X=-1
The axis of symmetry will be directly in the middle of the intercepts.

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2 years ago

Jim gets a $20 allowance

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2 years ago

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Choose the domain for which each function is defined

klemol [59]

Answer:

Part 1) $f(x)=\frac{x+4}{x}$ -----> $x\neq 0$

Part 2) $f(x)=\frac{x}{x+4}$ ----> $x\neq -4$

Part 3) $f(x)=x(x+4)$ ----> All real numbers

Part 4) $f(x)=\frac{4}{x^2+8x+16}$ ----> $x\neq -4$

Step-by-step explanation:

we know that

The domain of a function is the set of all possible values of x

Part 1) we have

$f(x)=\frac{x+4}{x}$

we know that

In a quotient the denominator cannot be equal to zero

For the value of x=0 the function is not defined

therefore

The domain is

$x\neq 0$

Part 2) we have

$f(x)=\frac{x}{x+4}$

we know that

In a quotient the denominator cannot be equal to zero

For the value of x=-4 the function is not defined

therefore

The domain is

$x\neq -4$

Part 3) we have

$f(x)=x(x+4)$

Applying the distributive property

$f*(x)=x^2+4x$

This is a vertical parabola open upward

The function is defined by all the values of x

therefore

The domain is all real numbers

Part 4) we have

$f(x)=\frac{4}{x^2+8x+16}$

we know that

In a quotient the denominator cannot be equal to zero

Equate the denominator to zero

$x^2+8x+16=0$

Remember that

$x^2+8x+16=(x+4)^2$

( $x+4)^2=0$

The solution is x=-4

For the value of x=-4 the function is not defined

therefore

The domain is

$x\neq -4$

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2 years ago

Tickets to a school musical cost $7.25. The amount received from ticket sales is $833.75. How many tickets were sold?

KonstantinChe [14]

Answer: 115

Divide 833.75 by 7.25

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2 years ago

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