2. A large appliance company estimates that the variance of the life of its appliances is 3.
You work for a consumer advocacy group and are asked to test the claim at a = 0.05.
You find that the sample of the lives of 27 appliances has a variance of 2.8.

Answers

Answer 1

Answer:

30

Step-by-step explanation:

Answer 2

Answer:

if their are choices you should list them. The givens are pretty specific though.

W = E * I is the answer

E (voltage) = W/I is a more refined answer. <<< answe

Step-by-step explanation:


Related Questions

The half-life of carbon-14 is 5,730 years. Suppose a fossil is found with 10 percent as much of its carbon-14 as compared to a living sample. How old is the fossil?

Answers

Answer:

19050 or some other number very close like 19039

Step-by-step explanation:

I took test and got this one right.

Answer:

the guys above :)

Step-by-step explanation:

give him brainliest if you have not :)

Jessica is packing books for her move She has 93 books. Each box can fit 6 books. How many boxes does she need to move all of her books? (Long division please)

Answers

Answer:

16

Step-by-step explanation:

93:6=15.5 As the box can't be half so 16 boxes. In 15 she will pack in each 6 books and in other box 3 books

Answer:

She will need 16 boxes with space for 3 more books

Step-by-step explanation:

If y = x + 5 and x = 3, then y = what?

Answers

y=8

Step-by-step explanation:

y=x+5 x=3

y=3+5

therefore

y=8

worth 10 points ! need help asap

Which shows the given inequalities in slope-intercept
form?

Answers

Answer:

second option

Step-by-step explanation:

You want to isolate the 'y' in each inequality:

4x - 5y ≤ 1

-5y ≤ -4x + 1

y ≥ 4/5x - 1/5   (inequality symbol changed because we divided by a negative)

1/2y - x ≤ 3

y - 2x ≤ 6    we multipled the original inequality by 2 to eliminate the denom.

y ≤ 2x + 6

The answer would be the 2nd option

Please please help please please ASAP please

Answers

Answer:

14.52

Step-by-step explanation:

With reference angle 32°

perpendicular (p) = 9

base (b) = x

Now

Tan 32° = p / b

0.62 = 9 / x

x = 9 / 0.62

x = 14.52

Please help please please help me please please

Answers

Answer:

8.88

Step-by-step explanation:

With reference angle 42°

hypotenuse (h) = 12

base (b) = x

Now

cos 42° = b / h

0.74 = x / 12

x = 0.74 * 12

x = 8.88

Answer:

the answer is 48 I think

Step-by-step explanation:

I did it by sub 90 and 42

A moving company offers two price plans,
• The first plan charges a flat rate of $39.95 plus $0.12 per mile driven,
• The second plans charges a flat rate of $19.95 plus $0.28 per mile driven
How many miles must the truck be driven for the two plans to cost the same?

Answers

First plan: 39.95 + 0.12m
Second: 19.95 + 0.28m
Set them equal
39.95 + 0.12m = 19.95 + 0.28m
39.95 = 19.95 + 0.16m
20 = 0.16m
m = 125
Solution: 125 miles

34) Which temperature is colder? -16 degrees or -32 degrees

Answers

Answer:

-32 is colder

Answer:

-32 degrees? i believe so

Have A Wonderful Day !!

6th grade math help me plzzzz

Answers

Answer:

-0.9

Step-by-step explanation:

First we have to distribute. -1 times t is -1t and -1 times 8 is -8. Now, our equation will look like this: -1t - 8 = -7.1  

Next, we have to carry our -8 to the other side of the euqation. So, we have to plus 8 on both sides. -7.1 plus 8 is 0.9. Now, our equation will look like this,

-1t = 0.9.

Lastly, we have to divide -1 from both sides. 0.9 divided by -1 is -0.9. So therefore, t = -0.9.

-09 welcome have an good day

A cable company charges 150 to install equipment. Then there is a $50 charge each month. Write an equation to express this relationship

Answers

The equation would be: 150 + (50x) = total

can a triangle be made with side lengths of 1, 2, and 4 plsss

Answers

NO IT CANNOT BE MADE

Step-by-step explanation:

Since, The sum of the lengths of any two sides of a triangle must be greater than the length of the third side.

hi waht is m⁵×m⁴ in algebra maths​

Answers

Answer:

m⁹

Step-by-step explanation:

In such questions , when any two or more numbers with exponents are multiplied and their bases are equal , the exponents of all the numbers add up . So ,

[tex]m^{5} \times m^{4} = m^{5+4} = m^{9}[/tex]

determine the values of X for which g(x) is defined ​

Answers

this is a question from me to you not an answer sorry what class are you taking

determine this systems of equations no solution, one solution, infinitely many solutions

y=5x-20
4x+12=y

Answers

Answer:

one solution

Step-by-step explanation:

At Grab & Go Grocery, you can buy 4 yogurt cups for $5. If the unit price stays the same, how much would it cost to buy 10 yogurt cups?

Answers

Answer:

12.50

Step-by-step explanation:

Each yogurt is $1.25. 1.25 x 4 = 5. so 1.25 x 10 = 12.50.

How is solving inequalities with multiplication and division similar to solving equations with multiplication and division?

Answers

Because they’re both the opposites of eachothers quantities

Answer:

The process is the same. They just have different symbols.

Step-by-step explanation:

Brianna had 20$ but spent d dollars on ice cream. Write an expression to represent how much Brianna has after buying ice cream​

Answers

Answer:

20-d=y

Step-by-step explanation:

And I also don’t know how to do this.

Answers

C is the answer because i did this and it not that hard if you let the teacher explain to u

What is the value of x when 9( x - 9)= -11​

Answers

Answer:

x = 70/9

Step-by-step explanation:

9x - 81 = -11

move it to the right

9x = -11 +81

calculate

9x = 70

divide both sides

x = 70/9

6th grade math help me plzzz :))

Answers

Answer:

75%

Step-by-step explanation:

So i know that 5$ = 25%

So if i go up 3 times i get 15$ so that means you do 25% x 3 to get 75%

What fraction is equivalent to -3/2

Answers

Answer:

8/12

Step-by-step explanation:

Hope it’s right

The base of 40-foot ladder is 8 feet from the wall. How high is the ladder on the wall (round to the nearest foot)

Answers

Given:

The base of 40-foot ladder is 8 feet from the wall.

To find:

How high is the ladder on the wall (round to the nearest foot).

Solution:

Ladder makes a right angle triangle with wall and ground.

We have,

Length of ladder (hypotenuse)= 40 foot

Base = 8 foot

We need to find the perpendicular to get the height of the ladder on the wall.

Let h be the height of the ladder on the wall.

According to the Pythagoras theorem,

[tex]Hypotenuse^2=Base^2+Perpendicular^2[/tex]

[tex](40)^2=(8)^2+(h)^2[/tex]

[tex]1600=64+h^2[/tex]

[tex]1600-64=h^2[/tex]

[tex]1536=h^2[/tex]

Taking square root on both sides.

[tex]\pm \sqrt{1536}=h[/tex]

[tex]\pm 39.1918358=h[/tex]

Height cannot be negative. Round to the nearest foot.

[tex]h\approx 39[/tex]

Therefore, the height of the ladder on the wall is 39 foot.

The inverse of f (x)=x^2-3 is?

Answers

Answer:

[tex]f^{-1}[/tex](x)=[tex]\sqrt{x+3}[/tex]  , - [tex]\sqrt{x+3}[/tex]

Step-by-step explanation:

How much money she owe her plz help

Answers

The answer is D |-20| because the absolute value of -20 is postive 20 and 95-55 is 40 plus 10 is 50 then subtract 30 is 20

please help due in 10 mins.
Tides are measured by the heights of the tide above or below sea level. The difference between the two heights represents how much greater the high tide is than the low tide. The table shows the high and low tides and the difference between their heights at each of three locations. Some of the data in the table are missing. Use this information for the problem below.

Answers

Answer: Location A: 6.04, since a negative and a negative is a positive. 6.04--1.08=7.12

Location C: 6.9

7.34-0.44=6.9

Step-by-step explanation:

Difference between high tide and low tide at location C is equal to 6.9 and high tide at location A is equal to 6.04

What is high tide and low tide ?

Tides originate in the oceans and progress toward the coastlines where they appear as the regular rise and fall of the sea surface. When the highest part, or crest of the wave reaches a particular location, high tide occurs; low tide corresponds to the lowest part of the wave, or its trough.

Given here Difference between high tides and low tides                                = high tide - low tide

= HT - LT    . . . . . . . (1)

thus, Difference between high tide and low tide at location C is = 7.34 -0.44    

                                                                                                          =  6.9

And high tide at location A is = (Difference between HT & LT) +  LT  (from  eqn 1)

                                                = 7.12 + ( -1.08)

                                                = 6.04

Hence, Difference between high tide and low tide at location C is equal to 6.9 and high tide at location A is equal to 6.04

Learn more about high tide and low tide here:

https://brainly.com/question/14683300

#SPJ2

Select the correct text in the passage,
What is the opportunity cost in this scenario?
Mikael has saved $4,000 for his trip to Brazil. He has calculated that his total transportation expenses will be $1,000. The hotel will cost him
another $1,500. He will spend about $500 on food. He plans on spending the remaining $1,000 for sightseeing and buying souvenirs.
While booking his plane ticket
, he realizes that the price has gone up. His total transportation expenses will go up by $200. He realizes that he
cannot cancel his hotel reservation. He also doesn't want to go cheap on food. Finally, he decides to give up visiting the popular Ouro Preto
during his stay in Brazil
Reset
Next
mentum All rights reserved

Answers

Answer:

Sightseeing

Step-by-step explanation:

PLS RESPOND FAST!! What is the value of x in the diagram belo2v
A. 9
B. 8
C. 7
D. 6

Answers

Answer:

C

Step-by-step explanation:

The 2 triangles are similar (AA postulate ), thus the ratios of corresponding sides are equal, that is

[tex]\frac{14}{2}[/tex] = [tex]\frac{49}{x}[/tex] ( cross- multiply )

14x = 98 ( divide both sides by 14 )

x = 7 → C

It’s be b cuz it best supports

can some please helppp

Answers

Answer:

8

Step-by-step explanation:

8 because the ratio shown has everything in the x doubling as it goes on

Lisa is buying a computer for $1,500. The sales tax rate is 8.5%. Which expression should be used to calculate t, the total cost for the computer including tax?

Answers

Answer:

t=$1627.5

Step-by-step explanation:

Step one:

given data

price of computer= $1500

sales tax= 8.5%

Step two

Let us compute the amount in tax

tax= 8.5/100*1500

=0.085*1500

=$127.5

Let the total cost be t

hence

t=1500+0.085*1500

t=1500+127.5

t=$1627.5

Write an equation of the line with a slope of -4 and a y-intercept of 2.

Answers

Answer:

Step-by-step explanation:

-4 x y-= 2

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