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
choli [55]
2 years ago
14

127.86 +78.95 +23.09

Mathematics
2 answers:
rjkz [21]2 years ago
4 0

Answer:

229.9

Step-by-step explanation:

Reika [66]2 years ago
3 0

Answer:

229.9

Step-by-step explanation:

Uh easyyyyy lol

You might be interested in
Jessica bought 2 slices of pizza and a soda for $6.25. Alfredo bought 3 slices of pizza and a soda
Ira Lisetskai [31]

Answer:

A) 2.50

Step-by-step explanation:

subtract 8.75 and 6.25 to get the cost of 1 pizza slice since Alfredo bought 1 more pizza than Jessica.

4 0
2 years ago
Read 2 more answers
You deposit $975.52 in a bank account. Find the balance after 4 years if the account pays 7.25% annual interest compounded quart
sladkih [1.3K]

Answer:

The final ballance will be $1300.37.

Step-by-step explanation:

In this case we have a compounded interest, in order to calculate the final balance we need to use the following formula:

S = P(1 + r/n)^(n*t)

Where S is the final balance, P is the initial investment, r is the rate of interest, t is the time and n is the rate at which it is compounded. Since we have all the values we can directly apply to the formula as follows:

S = 975.52*(1 + 0.0725/4)^(4*4)

S = 975.52*(1.018125)^(16)

S = 975.52*1.333

S = 1300.37

The final ballance will be $1300.37.

4 0
3 years ago
The National Center for Education Statistics surveyed a random sample of 4400 college graduates about the lengths of time requir
Paha777 [63]

Answer:

95​% confidence interval for the mean time required to earn a bachelor’s degree by all college students is [5.10 years , 5.20 years].

Step-by-step explanation:

We are given that the National Center for Education Statistics surveyed a random sample of 4400 college graduates about the lengths of time required to earn their bachelor’s degrees. The mean was 5.15 years and the standard deviation was 1.68 years respectively.

Firstly, the pivotal quantity for 95% confidence interval for the population mean is given by;

                              P.Q. =  \frac{\bar X-\mu}{\frac{\sigma}{\sqrt{n} } }  ~ N(0,1)

where, \bar X = sample mean time = 5.15 years

            \sigma = sample standard deviation = 1.68 years

            n = sample of college graduates = 4400

            \mu = population mean time

<em>Here for constructing 95% confidence interval we have used One-sample z test statistics although we are given sample standard deviation because the sample size is very large so at large sample values t distribution also follows normal.</em>

<u>So, 95% confidence interval for the population mean, </u>\mu<u> is ;</u>

P(-1.96 < N(0,1) < 1.96) = 0.95  {As the critical value of z at 2.5%

                                               level of significance are -1.96 & 1.96}  

P(-1.96 < \frac{\bar X-\mu}{\frac{\sigma}{\sqrt{n} } } < 1.96) = 0.95

P( -1.96 \times {\frac{\sigma}{\sqrt{n} } } < {\bar X-\mu} < 1.96 \times {\frac{\sigma}{\sqrt{n} } } ) = 0.95

P( \bar X-1.96 \times {\frac{\sigma}{\sqrt{n} } } < \mu < \bar X+1.96 \times {\frac{\sigma}{\sqrt{n} } } ) = 0.95

<u>95% confidence interval for</u> \mu = [ \bar X-1.96 \times {\frac{\sigma}{\sqrt{n} } } , \bar X+1.96 \times {\frac{\sigma}{\sqrt{n} } } ]

                                              = [ 5.15-1.96 \times {\frac{1.68}{\sqrt{4400} } } , 5.15+1.96 \times {\frac{1.68}{\sqrt{4400} } } ]

                                             = [5.10 , 5.20]

Therefore, 95​% confidence interval for the mean time required to earn a bachelor’s degree by all college students is [5.10 years , 5.20 years].

8 0
3 years ago
HELPP ASAP!!!!! Rectangle RSTU and the image R’S’T’U’ are graphed on the coordinate grid below.
mylen [45]
270° clockwise rotation & 90° counterclockwise rotation
6 0
3 years ago
Read 2 more answers
Find the area of the following shape:
zalisa [80]

Answer:

36cm^2

Step-by-step explanation:

total area: 6x(4+3)=42

total area excluding the space: 42-(2x3)=36

4 0
2 years ago
Read 2 more answers
Other questions:
  • What is the greatest common factor of 8 and 52
    5·2 answers
  • A store gives away gift bags during a sale. Of these gift bags, 50% are green, 20% are yellow, and 30% are blue. The average num
    5·1 answer
  • The temperature in the late afternoon was -7.5° it dropped 5° by early evening and then dropped another 85° by midnight what was
    15·1 answer
  • Solve for n.<br><br> -2=4+n<br> help???
    10·2 answers
  • Subtracing 3x2+4x-5 from 7x2-3x from this polynomial the difference is
    14·1 answer
  • What does x + 24 = -56 equal​
    10·1 answer
  • Noah made 12 kg of trail mix .He ate 8,600 kg of it .How many liters does he have left.
    7·1 answer
  • Please answer it’s due tonight i’ll make brainiest answer and heart it
    9·1 answer
  • Find the area and perimeter <br> please help me :)
    5·2 answers
  • Can someone be kind enough and help me I've posted my question many times and no one has answered​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!