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
aleksklad [387]
3 years ago
7

What's the answer for this? CLASS 6 MATHS I NEED HELP ASAP!!!​

Mathematics
1 answer:
devlian [24]3 years ago
7 0

Answer:

20:

3 5/12 or 41/12

21:

-9 5/8 or -77/8

You might be interested in
What is 4 to the 7th power ?
bonufazy [111]
4^7=16,384 i  used a calulator

5 0
3 years ago
Which of the following describes the end behavior of y = -x^2+bx+c as x approaches either positive or negative infinity?
Pavlova-9 [17]
The end behavior model of y is -x^2.
As x approaches either positive or neg infinity, -x^2 will always be negative.
Thus, "B) y approaches neg infinity" is the correct one. 
Hope that will help :))

5 0
3 years ago
Concept Check: Sketch each angle in standard position. Draw an arrow representing the correct amount of rotation. Find the measu
soldi70 [24.7K]

Step-by-step explanation:

...............

......

8 0
3 years ago
A box contains 10 red ribbons and 12 blue ribbons. Once a ribbon is picked, it is not replaced. What is the probability of choos
lora16 [44]
I belive the answer is 1.
This is because out of 22 ribbon there are 10 which are bue so the probability of blue ribbons is 10/22 and probability of red ribbon is 12/22. So your question was the probability of choosing a red ribbon then a blu ribbon. Because of the word "then" , this means it is simply asking you to add their probablity so after adding 10/22 with 12/22 your answer will come to 22/22 which is equal to 1.
3 0
3 years ago
Researchers ask a random sample of 1,001 adults nationwide whether they favor or oppose the legalization of marijuana. Fifty-fiv
natima [27]

Answer:

b. It will decrease by a factor of 2

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence interval 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}.

The lower end of the interval is given by:

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

The upper end of the interval is given by:

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

The length of the interval is the subtraction of the upper end by the lower end, so it is:

L = 2z\sqrt{\frac{\pi(1-\pi)}{n}}

This means that the length is inverse proportional to the square root of the size of the sample.

So, if the sample size is multiplied by 4, the length of the interval is going to decrease by a factor of 2.

4 0
3 years ago
Other questions:
  • What is 19.2×108 minutes in hours? 1.152×1011 ​h​ 3.200×109 ​h​ 1.152×107 ​h 3.200×107 ​h​
    15·1 answer
  • This is my last question
    10·2 answers
  • A pronghorn antelope can run at speeds of about 59 miles per hour. What is that speed in feet per second, to the nearest whole n
    10·2 answers
  • Find the slope of the line that passes through the points (4,10) and (2,10)
    5·1 answer
  • What times 20 equals 70
    8·1 answer
  • Andrea had 32 problems to do for mathematics homework over the weekend. She did 1/4 of the problems on Friday night, and on Satu
    15·2 answers
  • Glenda wrote two-tenths of her paper on Monday One Tenths of her paper on Tuesday and one tenth of her paper on Wednesday she sa
    13·2 answers
  • A test has multiple choice questions with 5 choices for each answer, only one answer is correct for each question. Suppose a stu
    9·1 answer
  • $1.50 what if you took of the sales tax rate of a helmet.if the sales rate was5%,how much would be the original price of the hel
    11·1 answer
  • Question 7
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!