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3 years ago

What is y=4/5x+4 in standard form

Mathematics

1 answer:

HACTEHA [7]3 years ago

5 0

5y = 4x + 20
- 4x + 5y = 20

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n=400 people under the age of 25 was asked whether they check social media sites right after they wake up. 42% check social medi

Aliun [14]

Answer:

Step-by-step explanation:

We would set up the hypothesis test.

For the null hypothesis,

p = 0.5

For the alternative hypothesis,

p < 0.5

Considering the population proportion, probability of success, p = 0.5

q = probability of failure = 1 - p

q = 1 - 0.5 = 0.5

Considering the sample,

P = 42/100 = 0.42

We would determine the test statistic which is the z score

z = (P - p)/√pq/n

n = 400

z = (0.42 - 0.5)/√(0.5 × 0.5)/400 = - 3.2

Recall, population proportion, p = 0.5

We want the area to the left of 0.5 since the alternative hypothesis is lesser than 0.5. Therefore, from the normal distribution table, the probability of getting a proportion < 0.5 is 0.00069

So p value = 0.00069

Since alpha, 0.05 > than the p value, 0.00069, then we would reject the null hypothesis.

Therefore, there is significant evidence to conclude that that less than 50% of people under the age of 25 check social media sites right after they wake up.

7 0

3 years ago

Giving brainliest for best answer!!!!!!Can someone explain improper integral please in details?

NISA [10]

Answer:

An improper integral is the limit of a definite integral as an endpoint of the interval of integration approaches either a specified real number or in some instances as both endpoints approach limits

5 0

3 years ago

please help me please please please please please please please please please please please please please please please please p

IRISSAK [1]

Answer:

3.) 7

4.) 5

5.) 25

6.) 2/3

7.) 9

8.) 24

5 0

3 years ago

The area of the base of a cylinder is 45 square inches and its height is 11 inches. A cone has the same area for its base and sa

Ghella [55]

Answer:

165 in³

Step-by-step explanation:

Volume of a cone is:

V = ⅓Ah

where A is the area of the base and h is the height.

V = ⅓ (45 in²) (11 in)

V = 165 in³

8 0

3 years ago

How much more would be in

lianna [129]

Answer:

It will be $506.876 more.

Step-by-step explanation:

The equation for continuously compounded interest is given by

$A = P(e)^{rt}$ .......... (1)

where, A is the final amount, P is the principal amount, r is the annual interest rate and t is the number of years.

Now, in our case, P = $500, r = 7% i.e 0.07 and t = 10 years.

Then, from equation (1),

$A = 500 \times (e)^{0.07 \times 10} = 1006.876$ dollars

Therefore, the interest will be (A - P) = $(1006.876 - 500) = $506.876. (Answer)

7 0

3 years ago