Want to help me thanks if not ok to
will give brainliest

Answer:

The sample size is  [tex]n =  841 [/tex]

Step-by-step explanation:

From the question we are that

    The standard deviation is  [tex]\sigma = 5.6 \ hours[/tex]

     The margin of error is  [tex]E = 0.45[/tex]

From the question we are told the confidence level is  98% , hence the level of significance is    

      [tex]\alpha = (100 - 98) \%[/tex]

=>   [tex]\alpha = 0.02[/tex]

Generally from the normal distribution table the critical value  of  [tex]\frac{\alpha }{2}[/tex] is  

   [tex]Z_{\frac{\alpha }{2} } =  2.33[/tex]

Generally the sample size is mathematically represented as  

   [tex]n = [\frac{Z_{\frac{\alpha }{2} } *  \sigma }{E} ] ^2[/tex]

=>   [tex]n = [2.33 } *  5.6}{0.45} ] ^2[/tex]

=>   [tex]n =  841 [/tex]

Answer:

$25.44

Step-by-step explanation:

Although the starting price of the pair of jeans is $ 32, it is 25% off. Thus, 75% of its initial value (100-25) is being paid, with which the pre-tax price is determined as follows:

32 x 0.75 = X

24 = X

In turn, at that discounted price, 6% must be calculated as sales tax, with which the final price is determined through the following calculation:

24 x 1.06 = X

25.44 = X

Therefore, the price to pay for the pair of jeans is $ 25.44.

Answer:

$25.44

Step-by-step explanation:

i just know

Answer:

the answer is there should be another digit in the quotient

Answer:

No, because there should be another digit in the quotient

Answer:

x = -47, y = 39

Step-by-step explanation:

2x+3y=23 →equation 1

3x+4y=15 →equation 2

by elimination method,

(2x+3y=23) × 4

(3x+4y=15) × 3

8x + 12y = 92

(-)      (-)       (-)

9x + 12y = 45

---------------------

-1x + 0    = 47

-x = 47

x = -47

substitute x=-47 in equation 1

2(-47) + 3y = 23

-94 + 3y = 23

3y = 23 + 94

3y = 117

y = 117/3

y = 39

therefore, x = -47 and y = 39

hope you understood ❤❤❤

Answer:

-2.83333333

Hope this helped!

Answer:

[tex]\frac{1}{3}[/tex]x-1

Step-by-step explanation:

([tex]\frac{5}{6}[/tex]x-7)-([tex]\frac{1}{2}[/tex]x-6) =

The - sign before 6 is turned into a + sign when the bracket is removed because the arithmetic operation before the bracket is - and two - makes the second - turn into a + (It's a rule I can't rlly explain it well but yea)

[tex]\frac{5}{6}[/tex]x-7-[tex]\frac{1}{2}[/tex]x+6 = [tex]\frac{5}{6}[/tex]x-1-[tex]\frac{1}{2}[/tex]x

-7+6 makes it a -1.

[tex]\frac{5}{6}[/tex]x-[tex]\frac{1}{2}[/tex]x-1 = [tex]\frac{5}{6}[/tex]x-[tex]\frac{3}{6}[/tex]x-1

To make the denominator of the two fractions the same, I multiplied the second fraction by 3 so that both denominators are 6.

[tex]\frac{5}{6}[/tex]x-[tex]\frac{3}{6}[/tex]x-1 = [tex]\frac{2}{6}[/tex]x-1

After making the denominator the same, I can directly do the equation for the numerators (5-3=2) and keep the denominator the same.

[tex]\frac{2}{6}[/tex]x-1 = [tex]\frac{1}{3}[/tex]x-1

Since 2/6 has a common factor which is 2, I can divide both the numerators and denominators so that the fraction can be simplified further into 1/3, its simplest form.

Answer:

It's A

Step-by-step explanation:

0.073 is les than 0.73

I think that it might be 7.87 sorry if i am wrong

Answer/Step-by-step explanation:

3. Function: NO

Justification: there will be more than one y-value/output related to one x-value/input.

4. Function: YES

Justification: There are exactly one y-value/output related to each input/x-value in the relation.

5. Function: YES

Justification: each x-value/input is mapped to exactly one y-value/output. No input value is mapped to more than one output value.

Answer:

no triangle can be formed with the given values (i.e 0 triangle).

Step-by-step explanation:

Given;

length of side a, = 10

length of side b, = 40

angle A, = 30°

Apply sine rule to determine the angle of the second side (B);

[tex]\frac{sin \ A}{a} = \frac{sin \ B}{b} \\\\\frac{sin \ 30^0}{10} = \frac{sin \ B}{40}\\\\sin \ B = 40(\frac{0.5}{10} )\\\\sin \ B = 2[/tex]

The maximum sine function is 1, there is no sine function that will be equal to 2, so there is no triangle that can be formed with the given values.

Answer:0

On edge

Step-by-step explanation:

Step-by-step explanation:

x^2 - 8 - 36

x = (-(-8) ± √(-8)^2-4(1)(-36))/(2(1)) = (8 ± √64+144)/2 = 4 ± 0.5√208

x = (8+√208) or x = (8-√208)

therefore

(x - 8-√208)(x + 8-√208)

hopefully I'm not wrong

Answer:$32,085

Step-by-step explanation:

$25,335+1,995+995+895+895+695+295+195+35+750= $32,085

Total price of the sedan that Loren Weber wants to buy = $34010.1

A sales tax is a consumption tax imposed by the government on the sale of goods and services. A conventional sales tax is levied at the point of sale, collected by the retailer, and passed on to the government.

Given,

CODE DESCRIPTION MSRP

SAL 4 4 Dr. Sedan AWD $25335

85N Navigation System  $1995

66E Entertainment System   $995

Chrome Wheel Covers   $895

Interior Convenience Package  $895

SS9 Safety & Security Package  $695

RSS2 Reverse Sensing System  $295

SR5 Satellite Radio $195

195 EBH9 Engine Block Heater $35

E43 Destination Charge $750

Full sticker Price = 25335+1995+995+895+895+695+295+195+35+750

Full sticker Price = $32085

6% sales tax = 0.06 × $32085 = $1925.1

Total price of the car = Full price + sales tax

Total price of the car = $32085 + $1925.1

Total price of the car = $34010.1

Hence, $34010.1 is the total price of the sedan that Loren Weber wants to buy.

Learn more about sales tax here:

https://brainly.com/question/29442509

#SPJ2

Answer:

[tex]x + 15 = 60[/tex]

[tex]x = 60 - 15[/tex]

Step-by-step explanation:

Given

[tex]Additional = 15[/tex]

[tex]Total = 60[/tex]

Required

What equation can be used to select the initial number of stickers

Represent the initial number of stickers with x

The equation can then be written as:

[tex]x + Additional = Total[/tex]

This gives:

[tex]x + 15 = 60[/tex] ---- This is one equation

Make x the subject

[tex]x = 60 - 15[/tex] --- This is another equation

Solving further for x

[tex]x = 45[/tex]

This implies that she started with 45 stickers

Answer:

B

Step-by-step explanation:

Answer:

im not sure but i think its d

Step-by-step explanation:

Answer:

12:6 or 6:12 cant remember but i thinks its the first one lol

Step-by-step explanation:

Answer:

28c+17

Step-by-step explanation:

distribute get 28c+12+5

combine like terms get 28c+17

Answer:

1,880 per pound

Step-by-step explanation:

Complete question :

Find the standardized test statistic t for a sample with n = 15, x = 10, s = 0.8, H0: μ = 10.5. Round your answer to three decimal places.

Answer:

−2.420614

Step-by-step explanation:

Given that:

Given that:

n = 10

s = 0.8

X = 15

μ = 15.9

Using the relation :

(x - μ) / (s/√n)

(10 - 10.5) / (0.8/√15)

-0.9 / 0.2065591

= −2.420614

Hence, the standardized test statistic = −2.420614

Answer:

√10

Step-by-step explanation:

Pythagorean theorem. a^2+b^2=c^2.

In this case 9^2+b^2=√91^2. That equals 81+b^2=91. You isolate b^2, b^2=10. So b=√10.

Answer:

It would be c!

Step-by-step explanation:

Answer:

The equilibrium quantity is 26.4

Step-by-step explanation:

Given

[tex]Q_d = 48 - 9P[/tex]

[tex]Q_s = 12 + 6P[/tex]

Required

Determine the equilibrium quantity

First, we need to determine the equilibrium by equating Qd to Qs

i.e.

[tex]Q_d = Q_s[/tex]

This gives:

[tex]48 -9P = 12 + 6P[/tex]

Collect Like Terms

[tex]-9P - 6P = 12 - 48[/tex]

[tex]-15P = -36[/tex]

Solve for P

[tex]P = \frac{-36}{-15}[/tex]

[tex]P =2.4[/tex]

This is the equilibrium price.

Substitute 2.4 for P in any of the quantity functions to give the equilibrium quantity:

[tex]Q_d = 48 - 9P[/tex]

[tex]Q_d = 48 - 9 * 2.4[/tex]

[tex]Q_d = 26.4[/tex]

Hence, the equilibrium quantity is 26.4

Answer:

y= -.25x+2.25

Step-by-step explanation:

Answer:

y = - [tex]\frac{1}{4}[/tex] x + [tex]\frac{9}{4}[/tex]  

Step-by-step explanation:

(-3, 3)

2y = 8x - 6 ⇔ y = 4x - 3

y - 3 = - [tex]\frac{1}{4}[/tex] (x + 3)

y = - [tex]\frac{1}{4}[/tex] x + [tex]\frac{9}{4}[/tex]

Answer:

[tex]y = 8x + 7[/tex]

Step-by-step explanation:

Given

[tex]m = 8[/tex]

[tex]b = 7[/tex]

[tex]y-intercept: (0,7)[/tex]

Required

Determine the equation

An equation has a general form as follows:

[tex]y = mx + b[/tex]

Next, we substitute values for m and b

Substitute 8 for m and 7 for b

[tex]y = 8x + 7[/tex]

Hence, the line equation is: [tex]y = 8x + 7[/tex]

Answer:

Model what profits

Step-by-step explanation:

Answer:

Thank you and please rate me as brainliest as it will help me to level up

Answer:

y = x + 7

Step-by-step explanation:

The equation of a line in slope - intercept form is expressed as y = mx+c

m is the slope

c is the intercept

Get the slope m;

m = tan theta

m = tan 45

m = 1

Get the intercept c;

Substitute m = 1 and (-2, 5) into the equation y = mx+c and get c;

5 = 1(-2)+c

5 = -2+c

c = 5+2

c = 7

Get the required equation;

y = 1(x)+ 7

y = x + 7

Hence the equation of the line is y = x+7

Answer:

I don't think it's a knot.

Answer:

The domain (x values) is negative infinity to positive infinity since the graph keeps going in both directions ( left and right ) and the range (y values) is -1 to positive infinity since the graph starts at vertex (-1, -4) and continues infinitely upward.