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Olin [163]
3 years ago
10

Solve for the intercepts in the function 2y=8x -4

Mathematics
2 answers:
LUCKY_DIMON [66]3 years ago
8 0
4x-y=2 is the answer
lara [203]3 years ago
6 0
4x-y=2 is this what u needed ?
You might be interested in
a marble is rolled down a ramp. The distance it travels is described by the formula d=490T^2 where d is the distance in centimet
Helga [31]

Answer:

The period when its more than halfway

= 2 < t  ≤ 2.83 seconds   ( to nearest hundredth).

Step-by-step explanation:

When is is halfway down the ramp d = 3920/2 = 1960 cm, so:

1960 = 490 t^2

t^2 = 1960/490 = 4

t = 2 seconds.

When it reaches the bottom d = 3920 :

t^2 = 3920/490 =  8

t = 2.83 seconds.

5 0
3 years ago
A class’s test scores are normally distributed if the average score 60 and the standard deviation is 7 choose the spots where th
Brrunno [24]

Answer:

46

Step-by-step explanation:

We are given that a  class's test scores are normally distributed with an average score of 60.

We know that the curve of a normal distribution is symmetric about its mean.

60-14=46

60+14=74

Hence, the point 46 lies to the left of the mean and 74 lies to the right of the mean, and the two points have the same function value.

5 0
3 years ago
Read 2 more answers
Jackson's front door is 42 inches wide and 84 inches tall. He got a circular table with a 96 inch diameter. Will he be able to f
chubhunter [2.5K]
NO,  

42 inches wide
<span>height = 84 </span>
Diagonal=square root of ((42*42)+(84*84))=sq root 8820=93.91
<span>She purchased a circular table that is 96 inches in diameter. </span>
as the table is more in than the diagonal,
it will not fit through the door.
<span>Answer: No</span>
8 0
3 years ago
If the measure of arc AC= 70 which is the measure of
olga55 [171]

Answer:

M <ABC = 35 degrees.

Step-by-step explanation:

If you want the measure of < ABC it is 1/2*70 = 35 degrees.

4 0
3 years ago
A research group wants to know if the online platform to play Settlers of Catan is being accessed more after the stay at home or
Gre4nikov [31]

Answer:

a) The P-value is 0.

At a significance level of 0.05, there is enough evidence to support the claim that the online platform was accessed significantly more so than before the stay at home order.

b) Effect size d = 0.77

Medium.

Step-by-step explanation:

This is a hypothesis test for the population mean.

The claim is that the online platform was accessed significantly more so than before the stay at home order.

Then, the null and alternative hypothesis are:

H_0: \mu=1000\\\\H_a:\mu> 1000

The significance level is 0.05.

The sample has a size n=108000.

The sample mean is M=1378.

As the standard deviation of the population is not known, we estimate it with the sample standard deviation, that has a value of s=489.

The estimated standard error of the mean is computed using the formula:

s_M=\dfrac{s}{\sqrt{n}}=\dfrac{489}{\sqrt{108000}}=1.488

Then, we can calculate the t-statistic as:

t=\dfrac{M-\mu}{s/\sqrt{n}}=\dfrac{1378-1000}{1.488}=\dfrac{378}{1.488}=254.036

The degrees of freedom for this sample size are:

df=n-1=108000-1=107999

This test is a right-tailed test, with 107999 degrees of freedom and t=254.036, so the P-value for this test is calculated as (using a t-table):

\text{P-value}=P(t>254.036)=0

As the P-value (0) is smaller than the significance level (0.05), the effect is significant.

The null hypothesis is rejected.

At a significance level of 0.05, there is enough evidence to support the claim that the online platform was accessed significantly more so than before the stay at home order.

The effect size can be estimated with the Cohen's d.

This can be calculated as:

d=\dfrac{M-\mu}{\sigma}=\dfrac{1378-1000}{489}=\dfrac{378}{489}=0.77

The values of Cohen's d between 0.2 and 0.8 are considered "Medium", so in this case, the effect size d=0.77 is medium.

5 0
3 years ago
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