All categories

3 years ago

8k = 0 jsdfsiuefhwejbnmdshurefjnsfse

Mathematics

2 answers:

Elanso [62]3 years ago

8 0

Answer:

k=0

Step-by-step explanation:

$8k = 0 \\ k = \frac{0}{8} \\ k = 0$

lesya [120]3 years ago

7 0

Answer:

k = 0

Step-by-step explanation:

8k = 0

k = 0 Divide 8 to both sides

You might be interested in

A high school runs a survey asking students if they participate in sports. The results are found below. Run an independence test

Sveta_85 [38]

Answer:

It can be concluded that participation in sports is dependent on grade level.

Step-by-step explanation:

In this case a Chi-square independence test for the data is to be performed at α = 0.01.

The hypothesis can be defined as follows:

H₀: The participation in sports is independent of grade level.

Hₐ: The participation in sports is dependent of grade level.

The data provided is:

Freshmen Sophomores Juniors Seniors

Yes 75 88 55 42

No 30 28 38 40

The formula to compute the expected frequencies is:

$E_{i}=\frac{i^{th}\ \text{Row Total}\ \times\ i^{th}\ \text{Column Total}}{N}$

The Chi-square statistic is:

$\chi^{2}=\sum {\frac{(O_{i}-E_{i})^{2}}{E_{i}}}$

Consider the Excel file attached below.

The value of Chi-square statistic is 16.244.

The degrees of freedom of the test are:

$\text{df}=(r-1)(c-1)$

$=(4-1)(2-1)\\=3\times 1\\=3$

Compute the p-value of the test as follows:

$p-value=P(\chi^{2}_{df}$

$=P(\chi^{2}_{3}$

*Use a Chi-square table.

p-value = 0.001 < α = 0.01

The null hypothesis will be rejected at 1% level of significance.

Thus, it can be concluded that participation in sports is dependent on grade level.

4 0

4 years ago

Look at this function: x y −12 −8 −8 −6 −4 −4 0 −2 Mina said that the function is linear. Jenna said that the function is nonli

77julia77 [94]

Answer:

B Mina, because for every 4-unit increase in x, there is an increase in y by 2

Step-by-step explanation:

This is a linear function because the change rate is regular from one point to the next.

The X values go -12, -8, -4, 0

The Y values go -8, -6, -4, -2

You can also verify it's linear by calculating the slope at two different locations. The slope between the first two pairs (-12,-8) and (-8,-6) equals to 2. Same goes for the other pairs... so, since it has a steady slope, it's linear.

3 0

4 years ago

Read 2 more answers

A punch bowl had 2\dfrac122 2 1 2, start fraction, 1, divided by, 2, end fraction liters of juice in it. Liam drank \dfrac13 3

8_murik_8 [283]

Answer:

5/6 liters.

Step-by-step explanation:

Given that:

Amount of juice in a punch bowl = 2 * 1/2 liters

= 5/2 liters.

Part of juice drank by Liam from the bowl = 1/3

Amount of juice drank by Liam =

= 5/2 * 1/3 = 5\6 liters.

4 0

4 years ago

If a system including the quadratic equation representing the parabola and a linear equation has no solution, which linear equat

marshall27 [118]

9514 1404 393

Answer:

D. y=2x+6

Step-by-step explanation:

The line cannot intersect the parabola if it has a y-intercept greater than 5 and a suitable slope. The only sensible answer choice is ...

y = 2x +6

7 0

3 years ago

Read 2 more answers

Need help, This is due very soon! <3

garik1379 [7]

Answer:

8 months

Step-by-step explanation:

You: $20 + 15.50 per month I Your friend: $88 + 7

First month: 35.50 I First month: 95.00

Second month: 51.00 I Second month: 102.00

Third month: 66.50 I Third month: 109.00

Fourth month: 82.00 I Fourth month: 116.00

Fifth month: 97.50 I Fifth month: 123.00

Sixth month: 113.00 I Sixth month: 130.00

Seventh month: 128.50 I Seventh month: 137.00

Eighth month: 114.00 I Eighth month: 114.00

5 0

3 years ago