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
alexira [117]
2 years ago
6

Multiple choice, need help with this ASAP; I'll give BRANIEST to whoever gets it right and no links​

Mathematics
1 answer:
Sunny_sXe [5.5K]2 years ago
6 0

Answer:

so it should be a,c,e, and b

Step-by-step explanation:

49s square root is 7 and 7 is an integer so check.

7 is a whole number check

7 is rational check

and 7 is a real number check.

You might be interested in
Kelly, Matt, and Bo are sharing 2 pizzas equally. How much pizza does each person get?
kvasek [131]

Answer:

Hi! The answer is 1.5

Step-by-step explanation:

Kelly + Matt + Bo = 3

3, People / 2, Pizzas

3/2 = 1.5

1.5, Pizzas

☆*: .。.。.:*☆☆.*: .。..。.:*☆☆*: .。.。.:*☆☆.*: .。..。.:*☆

☁Brainliest is greatly appreciated!☁

<em>Hope this helps!!</em>

<em>- Brooklynn Deka</em>

4 0
3 years ago
While researching the cost of school lunches per week across the state, you use a sample size of 45 weekly lunch prices. The sta
Drupady [299]

We assume the lunch prices we observe are drawn from a normal distribution with true mean \mu and standard deviation 0.68 in dollars.


We average n=45 samples to get \bar{x}.


The standard deviation of the average (an experiment where we collect 45 samples and average them) is the square root of n times smaller than than the standard deviation of the individual samples. We'll write


\sigma = 0.68 / \sqrt{45} = 0.101


Our goal is to come up with a confidence interval (a,b) that we can be 90% sure contains \mu.


Our interval takes the form of ( \bar{x} - z \sigma, \bar{x} + z \sigma ) as \bar{x} is our best guess at the middle of the interval. We have to find the z that gives us 90% of the area of the bell in the "middle".


Since we're given the standard deviation of the true distribution we don't need a t distribution or anything like that. n=45 is big enough (more than 30 or so) that we can substitute the normal distribution for the t distribution anyway.


Usually the questioner is nice enough to ask for a 95% confidence interval, which by the 68-95-99.7 rule is plus or minus two sigma. Here it's a bit less; we have to look it up.


With the right table or computer we find z that corresponds to a probability p=.90 the integral of the unit normal from -z to z. Unfortunately these tables come in various flavors and we have to convert the probability to suit. Sometimes that's a one sided probability from zero to z. That would be an area aka probability of 0.45 from 0 to z (the "body") or a probability of 0.05 from z to infinity (the "tail"). Often the table is the integral of the bell from -infinity to positive z, so we'd have to find p=0.95 in that table. We know that the answer would be z=2 if our original p had been 95% so we expect a number a bit less than 2, a smaller number of standard deviations to include a bit less of the probability.


We find z=1.65 in the typical table has p=.95 from -infinity to z. So our 90% confidence interval is


( \bar{x} - 1.65 (.101),  \bar{x} + 1.65 (.101) )


in other words a margin of error of


\pm 1.65(.101) = \pm 0.167 dollars


That's around plus or minus 17 cents.




3 0
3 years ago
Read 2 more answers
1.06t can be written as (1.061/2)2t to give the approximate equivalent monthly interest rate based on an annual rate of 6%. Use
Tema [17]

Answer: 1.06^t.


Step-by-step explanation: We are given expression 1.06^t.

And 1.06^t expression is converted in (1.06^{1/2})^{2t}.

Now, we need to transform the expression into a single exponent expression using the properties of exponents.

We know, according to the properties of exponents

(a^m)^n = a^{m\times n}

Applying same rule in given expression, we get

(1.06^{1/2})^{2t} = (1.06)^{\frac{1}{2} \times 2t}

On simplifying exponents, we would get t in exponent.

=  1.06^t.

5 0
3 years ago
Read 2 more answers
Consider the matrix. What is the value of |C|?
garri49 [273]

Answer:

-3

Step-by-step explanation:

6 0
3 years ago
What is the common <br> ratio for this geometric sequence?<br><br> 4, 24, 144, 864, ...
Taya2010 [7]

Answer:

the common ratio is 6

Step-by-step explanation:

because 4 times 6 is 24

24 times 6 is 144

144 times 6 is 864

5 0
3 years ago
Read 2 more answers
Other questions:
  • A volleyball reaches its maximum height of 13 feet, 3 seconds after its served. Which of the following quadratics could model th
    10·2 answers
  • considering the one time deposit and monthly went rent the equation y equals 1200+400x can be used to represent why the total co
    6·1 answer
  • A particular frozen yogurt has 75 calories in 2 ounces.How much calories are in 8 ounces of the yogurt?
    15·1 answer
  • The diagram shows AQRS. Which term describes point ?​
    13·1 answer
  • If you ungroup 5,000 from 2,896 how do you explain the place value of 49910 to 5,000
    12·1 answer
  • Wich is longer? A cabinet that is 3/4s foot or a shingle that is 2/3s foot? How much longer?
    5·1 answer
  • What is the slope of this line? THIS IS REALLY URGENT PLEASE HELP
    6·1 answer
  • Please asap<br> ........................
    10·1 answer
  • Can someone pleaseeee help me :(
    5·1 answer
  • Please help me solve #9, and please 10
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!