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
Alika [10]
3 years ago
5

Please answer thanksss

Mathematics
1 answer:
exis [7]3 years ago
3 0

Answer:

a

Step-by-step explanation:

#d times 2 = 69, take 69 and multiply by B and then you get 69, or x=o

You might be interested in
Carpet salespeople at Cover Up Carpets do not earn a base salary. Instead, they receive a commission of 7.5% on all of their sal
zepelin [54]
The answer is d $7000
8 0
3 years ago
The mean preparation fee H&R Block charged retail customers in 2012 was $183 (The Wall Street Journal, March 7, 2012). Use t
astraxan [27]

Answer:

a)0.6192

b)0.7422

c)0.8904

d)at least 151 sample is needed for 95% probability that sample mean falls within 8$ of the population mean.

Step-by-step explanation:

Let z(p) be the z-statistic of the probability that the mean price for a sample is within the margin of error. Then

z(p)=\frac{ME*\sqrt{N}}{s } where

  • Me is the margin of error from the mean
  • s is the standard deviation of the population
  • N is the sample size

a.

z(p)=\frac{8*\sqrt{30}}{50 } ≈ 0.8764

by looking z-table corresponding p value is 1-0.3808=0.6192

b.

z(p)=\frac{8*\sqrt{50}}{50 } ≈ 1.1314

by looking z-table corresponding p value is 1-0.2578=0.7422

c.

z(p)=\frac{8*\sqrt{100}}{50 } ≈ 1.6

by looking z-table corresponding p value is 1-0.1096=0.8904

d.

Minimum required sample size for 0.95 probability is

N≥(\frac{z*s}{ME} )^2 where

  • N is the sample size
  • z is the corresponding z-score in 95% probability (1.96)
  • s is the standard deviation (50)
  • ME is the margin of error (8)

then N≥(\frac{1.96*50}{8} )^2 ≈150.6

Thus at least 151 sample is needed for 95% probability that sample mean falls within 8$ of the population mean.

7 0
3 years ago
Multiples of 3 are always multiples of 6.
Elena L [17]

Answer:yes 3x2=6

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Evaluate the exponent using the power to a power rule.<br><br> (2²a4b7)^3
slega [8]
The answer is 64a^12b^21
6 0
3 years ago
if an explosive shell can travel 500 yards in 1.5 seconds, a shell bursts with a 25 yard diameter of damage and it takes 3 secon
zzz [600]
an\ explosive\ shell\ can\ travel\ 500\ yards\ in\ 1.5\ seconds\ \ \ \rightarrow\\.\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \rightarrow\ \ \ \  1000\ yards\ in\ 3\ seconds\\\\diameter = 25\ yards\ \ \ \ \ \rightarrow\ \ \ \ radius=12.5\ yards\\\\1000+12.5=1012.5\ [yards]\\\\Answer:\\ The\ farthest\ away\ a\ target\ could\ be\ hit\ with\  a\ shell\ is\ 1012.5\ yards
4 0
3 years ago
Other questions:
  • Umder what conditions can you use a normal distribution to approximate the binomial distrubution
    9·1 answer
  • PLEASE HELP ME MUST GET DONE
    5·2 answers
  • Please help I don’t know how to solve these... can anyone explain? I’m desperate
    14·1 answer
  • I Shall Name Thee Brainliest! (:
    12·1 answer
  • Please help!!!! Find X and Y
    6·1 answer
  • 11/6 = n + 7/9 so what is n?
    15·2 answers
  • The sales tax rate is 4.3064.306​% for the city and 44​% for the state. Find the total amount paid for 33 boxes of chocolates at
    6·1 answer
  • Can someone plz help me with this one problem plz!!!!!
    9·2 answers
  • Find the x−and y−intercepts. 3x + 12y = −48
    8·1 answer
  • Waiting times to receive food after placing an order at the local Subway sandwich shop follow an exponential distribution with a
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!