1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
shtirl [24]
3 years ago
7

PLEASE HELP ASAP !!!!!!!!!!!!!!!!!!!

Mathematics
1 answer:
SIZIF [17.4K]3 years ago
6 0

Answer:

20=y*x = 2*10=20

Step-by-step explanation:

If this is what you are asking for here q-q

You might be interested in
Find the slope of (-1, -2), (2, 4)
erik [133]

Answer:

2x

Step-by-step explanation:

7 0
3 years ago
10 is multiplied by the sum of 3 and 2. The product is divided by 2, and then 5 is added in numerical expression
bija089 [108]
30 is your answer to this problem

7 0
3 years ago
Read 2 more answers
Write the ratio as a fraction in lowest terms. Be sure to make necessary conversions:
agasfer [191]

Answer:12533

Step-by-step explanation:

4 0
2 years ago
A clinical trial tests a method designed to increase the probability of conceiving a girl. In the study 335335 babies were​ born
strojnjashka [21]

Answer:

The 99​% confidence interval estimate of the percentage of girls born is (74.37%, 85.63%).

Usually, 50% of the babies are girls. This confidence interval gives values considerably higher than that, so the method to increase the probability of conceiving a girl appears to be very effective.

Step-by-step explanation:

Confidence Interval for the proportion:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}.

For this problem, we have that:

n = 335, \pi = \frac{268}{335} = 0.8

99% confidence level

So \alpha = 0.01, z is the value of Z that has a pvalue of 1 - \frac{0.01}{2} = 0.995, so Z = 2.575.

The lower limit of this interval is:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.8 - 2.575\sqrt{\frac{0.8*0.2}{335}} = 0.7437

The upper limit of this interval is:

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.8 + 2.575\sqrt{\frac{0.8*0.2}{335}} = 0.8563

For the percentage:

Multiplying the proportions by 100.

The 99​% confidence interval estimate of the percentage of girls born is (74.37%, 85.63%).

Usually, 50% of the babies are girls. This confidence interval gives values considerably higher than that, so the method to increase the probability of conceiving a girl appears to be very effective.

7 0
3 years ago
Draw a diagram to show the hidden question.then solve. One gallon of paint will cover 80 files.Tariq wants to paint the files on
Naddika [18.5K]
I think the answer is 160, I'm not completely sure. Anyway, have a good day!
4 0
3 years ago
Other questions:
  • The length of a rectangle is four feet less than twice width. The area of the rectangle is 70 square feet. Find the dimensions o
    11·1 answer
  • Tell whether this sequence is arithmetic. If it is identify the common difference. 19,8,-3,-14
    11·1 answer
  • Jessica's age plus Mike's age is 20. Mike is 4 years younger than Jessica. How old is Mike?
    12·2 answers
  • Loin has read 25 % of a book. If she has been reading for 5 hours, how many more hours will it take her to complete the book?
    15·1 answer
  • Suppose we know that the birth weight of babies is Normally distributed with a mean 3500g and a standard deviation of 500g. What
    14·1 answer
  • Simplity<br>the ratios<br>a<br>55:12<br>b. 6cm: 126cm:12 cm​
    15·1 answer
  • Shari and Ana are playing games at an arcade. Shari has $37.50 and is playing $0.50 games. Ana has $42.75 and is playing $0.75 g
    12·2 answers
  • The distance on a map between North Carolina and Louisiana is 4 inches. If the map’s scale is 1 inch = 237 miles, what is the ac
    5·2 answers
  • Pls help i will mark you brainliest
    5·1 answer
  • A deep-sea diver dives from the surface to 131 feet below the
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!