What is the z* critical value for constructing a 99% confidence interval for a proportion?

Find the z-table here.

1.65
1.96
2.33
2.58

Answer:

60% are girls

60% of 40=6*40=24

Step-by-step explanation: Hope this help :D

Answer:

Y=6

Step-by-step explanation:

Y=kx

k=3

Y=3x=3(2)=6

Answer:

[tex]A=75.37\ m^2[/tex]

Step-by-step explanation:

Given that,

The base of a trapezoid, b = 21.6 m

Height of the trapezoid, h = 4.5 m

The tope of the trapezoid, a = 11.9 m

We need to find the area of a trapezoid. The formula for the area of a trapezoid can be given by :

[tex]A=\dfrac{1}{2}\times (sum\ of\ parallel\ sides)\times height[/tex]

Put all the values,

[tex]A=\dfrac{1}{2}\times (21.6+11.9)\times 4.5\\\\=75.37\ m^2[/tex]

Hence, the area of a trapezoid is equal to [tex]75.37\ m^2[/tex].

Answer:

B. Regular

Step-by-step explanation:

Answer:

option B

Regular

hope it helps

Answer:

a) x = 4 cm

Step-by-step explanation:

x + 2x + 2x = 20 cm

5x = 20

x = 4 cm

I believe that it is (B).

Answer:

The expanded form is y=716x7

Step-by-step explanation:

Expanded form or expanded notation is a way of writing numbers to see the math value of individual digits. When numbers are separated into individual place values and decimal places they can also form a mathematical expression. 5,325 in expanded notation form is 5,000 + 300 + 20 + 5 = 5,325.

Answer:

-3

Step-by-step explanation:

1.2 + x = -1.8

subtract 1.2 from each side of the equation:

x = -3

Answer:

u = v - at

Step-by-step explanation:

v = u + at

v - at = u + at - at

v - at = u

u = v - at

Answer:

6.3

Step-by-step explanation:

99(.07)=6.3

original price was 92.7 + 6.3 gives you 99

Answer:

[tex]8( 4 \sqrt{7} - \sqrt{18} ) = 8(4 \sqrt{7} - 3 \sqrt{2}) = 32 \sqrt{7} - 24 \sqrt{2} [/tex]

Answer:

the answer is

[tex]32 \sqrt{7} - 24 \sqrt{2} [/tex]

Answer:

Piece of wood 2

Step-by-step explanation:

Because he have to cut only 0,06 cm

Answer:

C.

(3x + 2)(3x − 1)

Step-by-step explanation:

I would factor each answer choice with FOIL

A.

(3x − 1)(3x − 2)

9x^2 -6x -3x +2

9x^2 - 9x + 2

B.

(3x + 1)(3x − 2)

9x^2 -6x + 3x - 2

9x^2 -3x - 2

C.

(3x + 2)(3x − 1)

9x^2 -3x + 6x - 2

9x^2 +3x - 2

 D.

(9x − 2)(x + 1)

9x^2 + 9x - 2x -2

9x^2 +7x -2

Answer:

answer is C!

Step-by-step explanation:

Answer:

The radius should be 0.5

Step-by-step explanation:

Answer:

SA=528 cm²

Step-by-step explanation:

[tex]SA=2(\frac{1}{2} )(16)(6)\\\\+2(10)(12)\\\\+16(12)\\\\SA=528 cm^{2}[/tex]

hope it helps

have a great day!!

Answer:

My best guess would be 19.5

Step-by-step explanation:

I asked go ogle

and

thats

all

I

could

find

hope

this

helps!

Answer:

One apple cost $0.52.

Step-by-step explanation:

$2.60/5 = $0.52

$0.52 * 5 = $2.60

Answer:22

Step by step explanation:

add them all and the Complete angle a triangle can hold is 180

So we add all angles=158 hence 180-158=22

:)

Answer:

choice 1) ∠ABD = 22°

Step-by-step explanation:

∠ABD = 180° - 56° - 49° - 53° = 22°

m<QRS = 80 degrees.

Supplementary angles = a total of 180 degrees. So if angle ABC = 100, angle QRS would = 80 degrees.

Please mark as brainliest :D

Answer:

Solution given:

<ABC+<QRS=180°[supplementary]

<QRS=180°-100°

<QRS=80° is your answer

Answer:

Step-by-step explanation:

Reflection: the conceptual operation of inverting a system or event with respect to a plane, each element being transferred perpendicularly through the plane to a point the same distance the other side of it.

- the leaf

Rotation: The movement of something around anouther or clockwise/counter-clockwise (this one makes no since as an exsplination)

- Phone and the tire

Translation: The movement of something from one place to anouther

- the checker piece.

Answer:

9 x 10^12

Step-by-step explanation:

for multiplying scientific notation, you multiply the numbers (3 x 3) and add the exponents together (6 + 6) to get 9 x 10^12

Answer:

A)0

just did test on edge

Step-by-step explanation:

Answer:

Which function is represented by this graph?

9

The last option is not even a function, because it ambiguously defines the endpoints.

The first option doesn't define the endpoint, because they are always excluded.

So, the correct option is the second one, because it includes the left endpoint and excludes the right one

Step-by-step explanation:

Plz mark me as brainlest please and follow me plz

Answer:

Amount of  vinegar. 100% : 20 milliliters

Amount of  Italian dressing: 140 milliliters

Step-by-step explanation:

Let's call A the amount of  vinegar. 100%

Let's call B the amount of  Italian dressing . 12% vinegar

The resulting mixture should have 23%  vinegar, and 160 milliliters.

Then we know that the total amount of mixture will be:

Then the total amount of pure antifreeze in the mixture will be:

Then we have two equations and two unknowns so we solve the system of equations. Multiply the first equation by -1 and add it to the second equation:  We substitute the value of B into one of the two equations and solve for A.

Answer:

²¹⁄ₛ which is 21/s

Step-by-step explanation:

Answer:

6 3/8

Step-by-step explanation:

FIrst, reciprocal means that you have to change the order of the fraction.

8 1/2 = 17/2

1 1/3 = 4/3

17/2 by the reciprocal of 4/3 = 17/2 by (this word means to multiply) 3/4

17/2 * 3/4 = 51/8 = 6 3/8

Answer:

im pretty sure its D :) hope this helps you out.

Answer:

Step-by-step explanation:

Parts + 3($40 labor)=183.30

parts + 120=183.30

parts=63.30 but it includes tax. To find costs of parts before tax you

63.30/1.055=60 so parts are $60

or to solve with one equation:

parts(1.055) + 3($40 labor) = 183.30

parts(1.055) + 120=183.30

parts(1.055)=63.30

Parts = 63.30/1.055

parts = 60

Answer:

Step-by-step explanation:

CI ( 95 % )   means   α = 5 %    α  = 0,05   α /2 = 0,025

If we have a normal distribution and build a CI by symmetry such CI has as a middle point the mean in this case

CI 95 %  =  ( 520 ;  560 )

the mean is (520 + 560 ) / 2  

mean  = 540

Answer:

-285

Explanation:

I did it on my calculator