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
qwelly [4]
3 years ago
13

Hello im new could you help

Mathematics
2 answers:
alekssr [168]3 years ago
8 0
Yes that’s the right one I did the math.
Goryan [66]3 years ago
4 0

$28.80 hope I helped


You might be interested in
Here is a right angled triangle work out the value of x using trigonometry
Zolol [24]

~~~~~\sin 30^{\circ} = \dfrac{\text{Perpendicular}}{\text{Hypotenuse} }\\\\\\\implies \dfrac 12 = \dfrac{8}x\\\\\\\implies x =  8\cdot2\\\\\\\implies x = 16 ~ \text{cm.}

8 0
1 year ago
The branch manager of an outlet (Store 1) of a nationwide
monitta

Answer:

1. ( 19.1416, 23.5384,)

2. (0.276348, 0.46651)

3. the sample size = 170.73 approximately 171

4. sample size = 334.07 approximately 334

5. sample of 334 should be taken by manager

Step-by-step explanation:

mean = bar x = 21.34 dollars

size of sample n = 70

standard deviation of sample = 9.22

we use t distribution as the population standard deviation is not known.

95% Confidence interval

1-α = 0.95

α = 0.05

degree of freedom = 70-1 = 69

α/2 = 0.025

using the t distribution tsble,

= 1.9949

confidence interval = 21.34+-1.9949*[\frac{9.22}{sqrt(70)}] \\

= 21.34 +- (1.9949*1.10200)

= 21.34 + 2.1984, 21.34 - 2.1984

= (23.5384, 19.1416)

the confidence interval of the mean amount spent at the supply store can be written as 19.1416<u<23.5384

2. sixe of those who only have a cat

p = 26/70 = 0.371429

at 90 % confidence interval,

1-α = 0.90

α = 0.10

we use the z table here

z(0.10/2) = Z(0.05)

= 1.645

0.371429+-1.645\sqrt} \frac{0.371429(1-0.371429)}{70}

= 0.371429 +-( 1.645 x 0.0578)

= 0.371429 + 0.095081, 0.371429 - 0.095081

= (0.276348, 0.46651)

3. sd = 10$

margin of erro,r e = 1.50$

α = 0.05

using z table

α/2 = Z0.025

= 1.96

sample size = 1.96² * 10² / 1.50²

= 3.8416 * 100/ 2.25

= 170.73

the sample size is approximately 171

d. we have 0.5 as sample proportion now

margin of error = 0.045

α = 0.10

Zα/2 = 0.05

= 1.645

sample size = 1.645²x0.5(1-0.5) / 0.045²

= 0.676506/0.002025

= 334. 07

sample size = 334

5.  sample of 334 should be taken by manager

3 0
3 years ago
Whats the measure of the angles (SHOW YOUR WORK so I can understand)
evablogger [386]

Answer:

Angle DEB: 52

Angle ADB: 30

Angle CBE: 52

Angle BEC: 38

Step-by-step explanation:

Angle DEB = 52 because triangles' angles must add up to 180. Angle ADB is 30 because it is complementary to angle BDE. Angle CBE is 52 because angle BEC is complementary to BED which is 52 degrees to BEC is 38 degrees. since the angles add up to 180, and C is 90, CBE is 52. Finally, BEC is 38 because it is complementary to BED.

5 0
3 years ago
Lesson 8.3 Example 1 Problems
Vlada [557]

Answer:90% because 46% out of 50 is 90

Step-by-step explanation:

have a great day <3

(if i get this wrong im so sorry :(

4 0
3 years ago
Read 2 more answers
What is the range of this relation? ​
gayaneshka [121]

Answer:

{- 1, 0, 4 }

Step-by-step explanation:

the range is the y- coordinates of the plotted points

the coordinates of the points are

(- 4, - 1 ) , (1, 0 ) , (1, 4 ) with y- coordinates - 1, 0, 4

then range is { - 1, 0, 4 }

6 0
1 year ago
Other questions:
  • PLS HELP!!!!!!!!!!!!!!!!!!!!
    9·2 answers
  • The average score on a biology test was 72.1 write the average score using a fraction
    9·1 answer
  • Help please !!!!!!!!!!!!
    6·1 answer
  • Please help me solve this
    5·1 answer
  • Write "48 gallons in 14 days" as a unit rate. Round to the nearest hundredth, if necessary.
    13·1 answer
  • What is 15/8 written in a mixed number?<br><br><br>Sorry I'm just bad at math :/​
    10·1 answer
  • Michael spent $18 at a local farmers’ market. Apples cost $2 each and peppers cost $3 each.
    12·2 answers
  • Another page needs to be solved
    5·1 answer
  • A 2-column table with 5 rows. Column 1 has entries x, x, x, x, Total 100 percent. Column 2 has entries 5 dollars, 5 dollars, 5 d
    5·2 answers
  • Scenario
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!