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3 years ago

Which equation could have been used to create this function table?

Mathematics

2 answers:

azamat3 years ago

8 0

Answer is <span>B.
y = x + 3

hope that helps</span>

mihalych1998 [28]3 years ago

4 0

The answer is B.

Example:

Plug in for x.

   x | y
-------------------------------
1    |    4
3    | 6
7    |    10
9    |    12
11    |    14

Equation: y = x + 3.

y = 1(plug in x) + 3 = 4 which is y.

y = 3 + 3 = 6 which is y.

y = 7 + 3 = 10 which is y.

y = 9 + 3 = 12 which is y.

y= 11 + 3 =14 which is y.

Answer: Equation y = x + 3

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Building a is 160160 feet shorter than building

Serjik [45]

I assume the heights are 160 ft and 1480 ft.

The two heights are unknown, so we will use variable h to help solve the problem.
The shorter building, building A, has height h.
Since building A is shorter by 160 ft, then building B is taller by 160 ft, so the height of building B is h + 160.

Now we add our two heights to find the total height.

h + h + 160 is the total height.
We can write it as 2h + 160

We are told the total height is 1480 ft, so we let 2h + 160 equal 1480, and we have an equation.

2h + 160 = 1480

Subtract 160 from both sides

2h = 1320

Divide both sides by 2

h = 660

h + 160 = 820

Building A measures 660 ft.
building B measures 820 ft.

7 0

3 years ago

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Tamiku [17]

Answer:

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Answer

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Answer

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6 0

3 years ago

I need help with a math problem

soldi70 [24.7K]

Answer:

19,680

Step-by-step explanation:

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5 0

3 years ago

Solve for all real values of x.<br> x^2+6=0

irina [24]

Answer:

-6+6=0

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Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

Grades on a standardized test are known to have a mean of 1000 for students in the United States. The test is administered to 45

krok68 [10]

Answer:

The 95% confidence interval is $1003 < \mu$

Yes there is statistically significant evidence that students in Florida perform differently from other students in the United States

Step-by-step explanation:

From the question we are told that

The population mean is $\mu = 1000$

The sample size is $n = 453$

The sample mean is $\= x = 1013$

The standard deviation is $s = 108$

Given that the confidence level is 95% then the level of significance is mathematically represented as

$\alpha = 100 - 95$

=> $\alpha = 5\%$

=> $\alpha = 0.05$

The critical value for $\frac{\alpha }{2}$ obtained from the normal distribution table is

$Z_{\frac{\alpha }{2} } = 1.96$

Generally the margin of error is mathematically represented as

$E = Z_{\frac{\alpha }{2} } * \frac{s}{\sqrt{n} }$

=> $E = 1.96 * \frac{108}{\sqrt{453} }$

=> $E = 9.946$

Generally the 95% confidence interval is mathematically represented as

$\= x - E < \mu < \= x + E$

=> $1013 - 9.946 < \mu < 1013 + 9.946$

=> $1003 < \mu$

Given that the population mean(1000) is not within the 95% confidence interval for l for the average test score for students in Florida, then it means that there is statistically significant evidence that students in Florida perform differently from other students in the United States

4 0

3 years ago