A major car dealership has several stores in a big city. The owner wants to determine if there is a difference in the
proportion of SUVs that are sold at stores A and B. The owner gathers the sales records for each store from
the
past year. A random sample of 55 receipts from store A shows that 30 of the sales were for SUVs. Another random
sample of 60 receipts from store B shows that 42 of the sales were for SUVs. Assuming conditions for inference
are met, what is the 99% confidence interval for the difference in proportions of sales that are SUVs?
Find the Z-table here.

Answer:

no

Step-by-step explanation:

A right triangle has a formula a^2+b^2=c^2 with c being the longest side (hyponotuse). 10 squared is 100, 11 squared is 121, so add those and get 221. 14 squared is only 196 which is not equal to 221 so it is not a right triangle

Answer:

Yes

Step-by-step explanation:

Let's solve your equation step-by-step.

2x2−5x=7

Step 1: Subtract 7 from both sides.

2x2−5x−7=7−7

2x2−5x−7=0

2x2+−5x+−7=0

Step 2: Use quadratic formula with a=2, b=-5, c=-7.

x=−(−5)±√(−5)2−4(2)(−7)/2(2)

x=5±√81/4

Answer:

x= 7/ 2

or x=−1

the same thing

120.

Trust me.  It is correct using a formula.

Answer:

1: 18.75

Step-by-step explanation:

We multiply both sides by 5.

Answer:

Step-by-step explanation:

How many questions are on the exam?  Represent this by n.

Then 40% of n comes out to 12 questions, or more symbolically,

               0.40n = 12, after which we get n = 12/0.40 = 30

Answers:

(1)  0.40n = 12 is the desired equation.

(2) n = 30 is the number of questions on the exam.

(3) See above for explanations.

Answer:

16 sq units

Step-by-step explanation:

the area of the polygon =

(4×3)+(½×4×2)

= 12+4

= 16 sq units

Answer:its either 7:20 or 8:00 i think

Step-by-step explanation:

Answer:

answer is 9.5 I hope you understand what I wrote

Answer:

Mansah obtained 150 mark out of 240 mark in an English test .what was her percentage score

Answer:

$42.14

Step-by-step explanation:

Given data

Cost of meal= $98

tax= 9%

Tip= 20%

Let us find the amount of the tax and the tip

Tax

=9/100*98

=0.09*98

=$8.82

Tip

=20/100*98

=0.2*98

=$19.6

Hence the total amount paid is

=98+8.82+19.6

=126.42

The amount paid by Pryia

=126.42/3

=$42.14

Answer:

D) f(x) = 6x

Step-by-step explanation:

Answer:

b = -6

Step-by-step explanation:

14.4 = -2.4b (swap the sides of the equation)

-2.4b = 14.4 (divide both sides of the equation by -2.4)

b = -6

Answer:

8

Step-by-step explanation:

Answer:

5/13

Step-by-step explanation:

Sin = Opposite/hypotenuse

SinA = 5/13

Answer:

x ∈ ( - ∞ , 20 )

Step-by-step explanation:

Given :

x / 4 + 6 < 11

Adding - 11 both we get:

= > x / 4 + 6 - 11 < 11 - 11

= > x / 4 - 5 < 0

Multiply by 4 both we get:

= > x - 20 < 0

Adding 20 both side we get:

= > x - 20 + 20 < 20

= > x < 20

Solution set x ∈ ( - ∞ , 20 )

Hence we get required answer!

9514 1404 393

Answer:

  x > -20

Step-by-step explanation:

This is a "2-step" inequality with a negative coefficient.

  x/-4 +6 < 11 . . . . . given

  x/-4 < 5 . . . . . . . . subtract 6 from both sides

  x > -20 . . . . . . . . .multiply both sides by -4

Because the multiplier is negative, the sense of the comparison must be reversed.

_____

Check

  x = -24 should not be in the solution set: -24/-4 +6 < 11 ⇒ 12 < 11 . . . False

  x = -16 should be in the solution set: -16/-4 +6 < 11 ⇒ 10 < 11 . . . True

Answer:

x = 2

Step-by-step explanation:

7x−5=2x+5

step 1 add 5 to each side

-5 + 5 = cancels out

5 + 5 = 10

we now have 7x = 2x + 10

step 2 subtract 2x from each side

2x - 2x cancels out

7x - 2x = 5x

we now have 10 = 5x

step 3 divide each side by 5

5x / 5 = x

10 / 5 = 2

we' re left with x = 2

Answer:

13

Step-by-step explanation:

Answer: $8.91

Step-by-step explanation:

Answer:

it's twelve you're welcome

Answer:

12 ft

Step-by-step explanation:

Since the doors are similar then the ratios of corresponding dimensions are equal.

let x be the height of the bigger door, then

[tex]\frac{small}{big}[/tex] : [tex]\frac{3}{x}[/tex] = [tex]\frac{2}{8}[/tex] ( cross- multiply )

2x = 24 ( divide both sides by 2 )

x = 12

Height of the bigger door is 12 ft

Answer:

That measure to congruent 8 and side angle is 3.9

The correct answer is: m<8 and angle 7.9

Answer:

80

Step-by-step explanation:

f(3)=4(3)^3-3(3)^2+5(3)-16

f(3)=4(3*3*3)-3(3*3)+15-16

f(3)=4(27)-3(9)+15-16

f(3)=108-27+15-16

f(3)=81+15-16

f(3)=96-16

f(3)=80

Answer:

Ratio = 3:2:1

Let the Values be 3x:2x:x

3x+2x+x=180

=> 6x=180

=> x =180/6

=> x = 30

3×30=90

2×30=60

1×30=30

Answer:

2243x32

Step-by-step explanation:

23r4ft3gweftb3q54rvfwgeht rtg,5tjqbygucmrekv wjhqvrxerjuwqrgf4 jfy2qteg cwrhgrwe;iujihyuwgreob0uyergvbfyuwehvgboyu8erhgbhyurehgbyew8uhjrghyhbe3rjuhghbuyrehjgbyuhrejgbyuerjhghreyuhjgfhrueyhjfhgreuyhfgyurehfueirhfurehruyehgvbuyhgfhbhurjehguyhjnvdbkjhgifuejdhfguyfdhuyefhjhbgfuyvfjhgbfyugvhfnghbuhyfjvgryu78uyregyt587yuygh8ruiggh587eru5 y587urifibyutg89fhju34hr583u4 i43498iuty3894 iutu3489tu3389uyt38u

Answer:

9.42 Ft³

Step-by-step explanation:

I did the work.

Answer:

x = 3±√5

Step-by-step explanation:

Given the quadratic equation;

0 = x² – 6x + 4

Swap sides

x² – 6x + 4=  0

Subtract 4 from both sides

x² – 6x + 4 - 4=  0 - 4

x² – 6x = -4

Complete the square;

Add the square of half of coefficient of x to both sides

Coefficient of x = -6

Half of Coefficient  of x = -6/2 = -3

square of the half of Coefficient of x = (-3)²

Add (-3)² to both sides

x² – 6x + (-3)² = -4 + (-3)²

(x-3)² = -4 + 9

(x-3)² = 5

Take the square root of both sides

x - 3 = ±√5

x = 3±√5

This gives the solution to the equation

Step-by-step explanation:

subtract the areas of a circle from the area of a square and divide by 4

A_square = L x W

A_circle = pi x r^2

L, W= 12cm

r= 12/2cm

(A_square - A_circle) / 4

divide by 4 since the remaining portions are symmetrical

Answer: 3.9

Step-by-step explanation:

sin 34                       x    

 1                               7

Cross multiply and divide to get 3.9

Answer:

I'm sorry I don't know the answer to it

Answer:

Step-by-step explanation:

maybe a ?

Answer:

the answer is 48 your welcome

(2^2)^4 = 256

3^4 = 81

256 × 81 = 20735

27 × 16 = 432

20735÷432 = 47.99

round to 47.99 to the nearest 10th and you will get 48.

Lol

Final answer : 48