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RSB [31]
2 years ago
7

What is the domain of the square root function graphed below?

Mathematics
1 answer:
Fed [463]2 years ago
7 0
Where is the graph show the graph
You might be interested in
Explain how to determine the zeros of f(x)=(x+3)(x-1)(x-8)
spin [16.1K]

Answer:

x=-3,  x=1,  x=8

Step-by-step explanation:

When you have to find the zero of an equation like (x+3) all you have to do is solve for x.

x+3=0           equal the equation to zero

x+3-3=0-3    cancel out 3

x=-3              answer


If you have to find the zero of an equation like f(x)=-2x^2 - 5x + 7 then you would have to factor the equation.

7*-2=-14   multiply

-7 & 2   find the two numbers that when multiplied =14 and when added = -5

(2x^2 + 2)  (-7x + 7)  replace -5 with -7 & 2

-2x (x - 1)   -7 (x - 1)   factor

(x - 1)   (-2x - 7)    rewrite

1st: x - 1 = 0

          x = 1 : Answer

2nd: -2x - 7= 0

        -2x - 7 + 7 = 0 + 7

        -2x = 7

        -2x / -2 = 7 / -2

          x = 7 / -2 : Answer





7 0
3 years ago
Read 2 more answers
Who wants 100 points<br> you also get brainliest if you answer this question... 6+9=?
FrozenT [24]

Answer:

6+9=15

Step-by-step explanation:

6 0
2 years ago
The parkview middle school football team will be playing in the state championship the coach has free tickets to it will be dist
denis23 [38]

Answer:

the answer is 17.3 repeated

Step-by-step explanation:

because 52 divided by 3

8 0
2 years ago
To buy concert tickets there is a service charge and they cost per ticket. Right in equation to show the cost for any number of
Maksim231197 [3]

Answer:

The answer would be:

B. y=18x+4

Step-by-step explanation:


6 0
3 years ago
An ammunition producer claims his best product has an average lifespan of exactly 18 years. A skeptical product evaluator asks f
DochEvi [55]

Answer:

The 90% confidence interval for the true mean lifespan of this product is between 13.1 and 16.9 years.

Step-by-step explanation:

We have the standard deviation for the sample, which means that the t-distribution is used to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 50 - 1 = 49

90% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 49 degrees of freedom(y-axis) and a confidence level of 1 - \frac{1 - 0.9}{2} = 0.95. So we have T = 1.6766

The margin of error is:

M = T\frac{s}{\sqrt{n}} = 1.6766\frac{8}{\sqrt{50}} = 1.9

In which s is the standard deviation of the sample and n is the size of the sample.

The lower end of the interval is the sample mean subtracted by M. So it is 15 - 1.9 = 13.1 years

The upper end of the interval is the sample mean added to M. So it is 15 + 1.9 = 16.9 years

The 90% confidence interval for the true mean lifespan of this product is between 13.1 and 16.9 years.

8 0
2 years ago
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