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
inna [77]
2 years ago
15

*Help.. I don't understand this-*Question: Evaluate 4³+(-2)⁴​

Mathematics
2 answers:
morpeh [17]2 years ago
4 0

Answer:

80

Step-by-step explanation:

you just do the actual equation!

inessss [21]2 years ago
4 0
So we can extend it to (4x4x4)+ (-2x-2x-2x-2) and that simplifies to 64+16 which is 80!
You might be interested in
Which comparison is not correct
leva [86]
|8|>|-9| is going to be the one that is not correct
5 0
3 years ago
Read 2 more answers
The graph below shows the hours students spent studying and their language arts test scores.
Alexandra [31]

Answer:

correct answer is 40

Step-by-step explanation:

hope it helps:D

5 0
3 years ago
Read 2 more answers
A survey was conducted to determine the average age at which college seniors hope to retire in a simple random sample of 101 sen
tatyana61 [14]

Answer:

96% confidence interval for desired retirement age of all college students is [54.30 , 55.70].

Step-by-step explanation:

We are given that a survey was conducted to determine the average age at which college seniors hope to retire in a simple random sample of 101 seniors, 55 was the  average desired retirement age, with a standard deviation of 3.4 years.

Firstly, the Pivotal quantity for 96% confidence interval for the population mean is given by;

                         P.Q. =  \frac{\bar X-\mu}{\frac{s}{\sqrt{n} } }  ~ t_n_-_1

where, \bar X = sample average desired retirement age = 55 years

            \sigma = sample standard deviation = 3.4 years

            n = sample of seniors = 101

            \mu = true mean retirement age of all college students

<em>Here for constructing 96% confidence interval we have used One-sample t test statistics as we don't know about population standard deviation.</em>

<u>So, 96% confidence interval for the population mean, </u>\mu<u> is ;</u>

P(-2.114 < t_1_0_0 < 2.114) = 0.96  {As the critical value of t at 100 degree

                                               of freedom are -2.114 & 2.114 with P = 2%}  

P(-2.114 < \frac{\bar X-\mu}{\frac{s}{\sqrt{n} } } < 2.114) = 0.96

P( -2.114 \times {\frac{s}{\sqrt{n} } } < {\bar X-\mu} < 2.114 \times {\frac{s}{\sqrt{n} } } ) = 0.96

P( \bar X-2.114 \times {\frac{s}{\sqrt{n} } } < \mu < \bar X+2.114 \times {\frac{s}{\sqrt{n} } } ) = 0.96

<u>96% confidence interval for</u> \mu = [ \bar X-2.114 \times {\frac{s}{\sqrt{n} } } , \bar X+2.114 \times {\frac{s}{\sqrt{n} } } ]

                                           = [ 55-2.114 \times {\frac{3.4}{\sqrt{101} } } , 55+2.114 \times {\frac{3.4}{\sqrt{101} } } ]

                                           = [54.30 , 55.70]

Therefore, 96% confidence interval for desired retirement age of all college students is [54.30 , 55.70].

7 0
3 years ago
An email spam reaches three readers. Each of them forwarded the same email to three different readers. Each of these new readers
SOVA2 [1]

Answer:120

Step-by-step explanation:

3+9+27+81

7 0
3 years ago
Read 2 more answers
A pizza will be split among 3 friends.<br> What amount of pizza will each<br> friend receive?
lozanna [386]

Answer:

1/3

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Other questions:
  • What is the simplified form of the equation (x-1/x-1) x+5/x+1 -x-2/x-1(x+1/x+1)
    13·1 answer
  • Daniel spent a day hiking through a wildlife preserve. During the first hour of the hike, he drank 2 13/10 liters of water. writ
    12·1 answer
  • Find the areas of the parallelogram whose vertices are given below. ​A(negative 1​,4​) ​B(4​,0​) ​C(12​,3​) ​D(7​,7​) The area o
    6·1 answer
  • The expression below is scientific notation for what number? 4.9 • 10 (to the power of) 5
    6·1 answer
  • Amit’s bank charges
    10·1 answer
  • PLEASE HELP ASAP!!!!!<br><br>The graph below shows the solution set to which inequality?
    15·1 answer
  • If paper clips are 7/8 of an inch long and cost $0.02 to make, how much would it cost to produce enough paper clips to make a li
    6·1 answer
  • What happens to the number of zeroes in the product as you multiply a number by powers of 10 (10, 100, 1000, and so on)? Why?
    5·1 answer
  • I need help on this question
    11·1 answer
  • Robin has a collection of dimes, nickels and quarters. He has 4 times as many dimes as nickels. He has 20 more quarters than nic
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!