All categories

3 years ago

Express in scientific notation. 1.24 x 10^6/ 6.2 x 10^

Mathematics

1 answer:

Novay_Z [31]3 years ago

3 0

Answer:

200000x 10x

Step-by-step explanation:

hope this helps

You might be interested in

Will give brainliest whats the answer to #11

g100num [7]

The Alpitude is 5 because that is what the positive slope is. The Vertex is (2,6) because that is the lowest point on the graph. The equation is

y=5lx-2l-6 (lx-2l reprsents the absolute value of x-2)

4 0

4 years ago

Can somebody please help me with this question??<br>10=10(k-9)

SashulF [63]

K = 10

I think. I’m not positive sure though. Hope this helped!

4 0

3 years ago

Read 2 more answers

The number of "destination weddings" has skyrocketed in recent years. For example, many couples are opting to have their wedding

melamori03 [73]

Answer:

We conclude that the mean wedding cost is less than $30,000 as advertised.

Step-by-step explanation:

We are given the following data set:(in thousands)

29100, 28500, 28800, 29400, 29800, 29800, 30100, 30600

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.

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

$Mean =\displaystyle\frac{236100}{8} = 29512.5$

Sum of squares of differences = 3408750

$S.D = \sqrt{\frac{3408750}{7}} = 697.82$

Population mean, μ = $30,000

Sample mean, $\bar{x}$ = $29512.5

Sample size, n = 8

Alpha, α = 0.05

Sample standard deviation, s = $ 697.82

First, we design the null and the alternate hypothesis

$H_{0}: \mu = 30000\text{ dollars}\\H_A: \mu < 30000\text{ dollars}$ We use one-tailed t test to perform this hypothesis.

Formula:

$t_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{s}{\sqrt{n}} }$

Putting all the values, we have

$t_{stat} = \displaystyle\frac{29512.5 - 30000}{\frac{697.82}{\sqrt{8}} } = -1.975$

Now,

$t_{critical} \text{ at 0.05 level of significance, 7 degree of freedom } = -1.894$

Since,

$t_{stat} < t_{critical}$

We fail to accept the null hypothesis and reject it.

We conclude that the mean wedding cost is less than $30,000 as advertised.

8 0

4 years ago

A data set consists of the following data points: <br><br> A.P.E.X. Algebra 1 Sem 2

MArishka [77]

Answer:

C, y=4.5

Step-by-step explanation:

y=2.5x-3 if you plug in 3 for x and sole the equation its y = 7.5 - 3 so then it's 4.5 equals y.

4 0

2 years ago

Brainliest, hurry! Thank you so much! :D

Free_Kalibri [48]

Answer: 20/4.

Step-by-step explanation: As we can see, the number line is cut up into fourths. 4 fourths make a whole, so 20 fourths make 5. Therefore, 5 in a fractional form for this number line is 20/4.

Have a great day! :)

5 0

2 years ago

Read 2 more answers