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3 years ago

Which points are located on the x-axis?

Mathematics

1 answer:

Komok [63]3 years ago

6 0

<u>B and C</u> are both on the x-axis, because their y values are zero.

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Divide 2x^4-7x^3+x^2-18x+3 by x-4 using long division

katrin [286]

Answer:

47×3+c

Step-by-step explanation:

141+c

4 0

3 years ago

840,007 rounded to the nearest thousand

blondinia [14]

Answer:

840,000

If it was 500 or more, it would be 841,000.

But since it is below 500, it is 840,000.

Hope it helps!

5 0

3 years ago

Read 2 more answers

Determine the intercept of the line that passes through the following points.

masha68 [24]

Answer:

y-int=(0,40.5), x-int=(-18,0)

Step-by-step explanation: First you need to calculate the slope, which is 9/4. Then plug in a point into the y=mx+b, or slope intercept, equation using that slope.

9=(9/4)x+b. You'll get b is 40.5 which is y-int. Then plug in 0 for y and solve for x, which is your x int coordinate.

7 0

3 years ago

A food safety guideline is that the mercury in fish should be below 1 part per million (ppm). Listed below are the amounts of m

nignag [31]

Answer:

Confidence Interval: (0.44,1.00)

Step-by-step explanation:

We are given the following data set:

0.60, 0.74, 0.09, 0.89, 1.31, 0.51, 0.94

Formula:

$\text{Standard Deviation} = \sqrt{\displaystyle\frac{\sum (x_i -\bar{x})^2}{n-1}}$

where $x_i$ are data points, $\bar{x}$ is the mean and n is the number of observations.

$Mean = \displaystyle\frac{\text{Sum of all observations}}{\text{Total number of observation}}$

$Mean =\displaystyle\frac{:5.08}{7} = 0.725$

Sum of squares of differences = 0.8809

$S.D = \sqrt{\frac{0.8809}{6}} = 0.383$

90% Confidence interval:

$\bar{x} \pm t_{critical}\displaystyle\frac{s}{\sqrt{n}}$

Putting the values, we get,

$t_{critical}\text{ at degree of freedom 6 and}~\alpha_{0.10} = \pm 1.943$

$0.725 \pm 1.943(\frac{0.383}{\sqrt{7}} ) =0.725 \pm 0.2812 = (0.44,1.00)$

No, it does not appear that there is too much mercury in tuna sushi.

5 0

4 years ago

At a swim meet, 8 different swimmers compete in the 800- meter freestyle race. How many different ways are there for these swimm

nirvana33 [79]

Using the arrangements formula, it is found that there are 40,320 ways for these swimmers to finish.

<h3>What is the arrangements formula?</h3>

The number of possible arrangements of n elements is given by the factorial of n, that is:

$A_n = n!$

In this problem, there are n = 8 swimmers, hence they can finish arranged in 8! ways, that is:

$A_8 = 8! = 40320$

More can be learned about the arrangements formula at brainly.com/question/24648661

5 0

3 years ago