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son4ous [18]
2 years ago
7

Solve the equation 3(x-2)=6(5+x)

Mathematics
1 answer:
Svetach [21]2 years ago
4 0

3(x - 2) =6 (5+x) <em>(remove the parantheses)</em>

3x - 6 + 30 + 6x <em>(move the terms)</em>

3x - 6x = 30 + 6 <em>(collect like terms and calculate)</em>

-3x = 36 <em>(divide both sides)</em>

x = -12

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Which of the tables represent a function??<br>please help me! asap!​
Katyanochek1 [597]
The answer is table C
For anything to be a function, it cannot have two pairs as my teacher taught me!
For example, let’s take the number 4
Let’s say 4 can take a friend to the fair!
4 decided to take 5 (4,5)
4 CANNOT take anyone else but 5
4 is allowed to take as many 5’s as they want but cannot take any other number
Let’s set up a table

X. Y
4. 5
4. 5
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If the table changed:
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I hope this helps!
8 0
1 year ago
If Jose divides his cards into 8 equal stacks, how many cards will there be in each stack? Will there be any cards left over?
gavmur [86]
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8 0
3 years ago
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11111nata11111 [884]

Answer:

C

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
The formula for the volume V of a cylinder is , where r is the radius of the base and h is the height of the cylinder. Select th
m_a_m_a [10]

Answer:

<h2>h = 4 cm</h2><h2 />

Step-by-step explanation:

V = π r² h

where r = 3 cm

V = 36π cm³

solve for h

plugin values into the formula:

36π = π 3² h

h = <u> 36π </u>

      π 3²

h = 4 cm

6 0
3 years ago
The Department of Transportation would like to test the hypothesis that the average age of cars on the road is less than 12 year
puteri [66]

Answer:

z=\frac{10.6-12}{\frac{4.1}{\sqrt{45}}}=-2.29  

Step-by-step explanation:

information given

\bar X=10.6 represent the sample mean  

\sigma=4.1 represent the population standard deviation

n=45 sample size  

\mu_o =12 represent the value that we want to test  

\alpha=0.05 represent the significance level for the hypothesis test.  

z would represent the statistic

p_v represent the p value for the test

Hypothesis to test

We want to test if the true mean is less than 12, the system of hypothesis would be:  

Null hypothesis:\mu \geq 10  

Alternative hypothesis:\mu < 10  

The statistic is given by:

z=\frac{\bar X-\mu_o}{\frac{\sigma}{\sqrt{n}}} (1)  

Replacing the info given we got:

We can replace in formula (1) the info given like this:  

z=\frac{10.6-12}{\frac{4.1}{\sqrt{45}}}=-2.29  

8 0
3 years ago
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