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2 years ago

14

at the theater,the worth family spent $18.00 on adult tickets, $16.50 on children`stickets,and $11.75 on the refreshments. How m

uch did they spend in all.

2 answers:

Goryan [66]2 years ago

7 0

They spent a total of $46.25

Here's how I got my answer:

Step 1: Add $18.00 and $16.40 together. Which is $34.50.

Step 2: Add $34.50 and $11.75, which will give you your answer, $46.25.

horrorfan [7]2 years ago

4 0

$46.25 was spent total.

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Which of the following correctly describes the domain of the function shown

labwork [276]

Option D:

$\{x: x \neq 1\}$ is the domain of the function.

Solution:

Given function is

$$r(x)=\frac{2 x}{x-1}$

<u>To find the domain of the function:</u>

Option A: $\{x: x \neq 0\}$

Substitute x = 0 in r(x).

$$r(0)=\frac{2 \times 0}{0-1}=0$

If x = 0, then r(0) = 0

So that x ≠ 0 is false.

So, $\{x: x \neq 0\}$ is not the domain of the function.

Option B: $\{x: x \neq \pm 1\}$

Substitute x = –1 in r(x).

$$r(-1)=\frac{2 \times (-1)}{-1-1}=1$

If x = –1, then r(–1) = 1

So that x = ± 1 is false.

So, $\{x: x \neq \pm 1\}$ is not the domain of the function.

Option C: $\{x: \text { all real numbers }\}$

Substitute x = 1 in r(x).

$$r(1)=\frac{2 \times 1}{1-1}=\frac{2}{0}$

It is indeterminate.

So, all real numbers are not the domain of the function.

Option D: $\{x: x \neq 1\}$

Substitute x = 1 in r(x).

$$r(1)=\frac{2 \times 1}{1-1}=\frac{2}{0}$

It is indeterminate.

So, $\{x: x \neq 1\}$ is the domain of the function.

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2 years ago

Please help, I will give brainliest. I am struggling badly.

Aliun [14]

Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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Papessa [141]

we know that

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2 years ago

Algebraically determine the x-intercepts of this function. Please show work.

WINSTONCH [101]

To determine x intercept, put y=0

<span>x^4 - 10x^2 + 9 = 0
</span>
<span>x^4 - 9x^2 - x^2 + 9 = 0

x^2(x^2 - 9) - 1(</span><span>x^2 - 9) = 0

(</span><span>x^2 - 9)(x^2-1) =0

x^2 - 9 = 0
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</span>

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3 years ago