What is the length of a radius of the circle represented by the equation

x2 + y2 - 4x - 4y + 4 = 0?


A) 2 units

B) 4 units

C) 8 units

D) 16 units

Answer:

Given:

Sample size, n = 6965

Sample proportion p' = [tex] \frac{1330}{6965} = 0.19 [/tex]

Let's claim that the return rate is less than​ 20%, ie, P = 0.2

Significance level = 0.01

The null and alternative hypotheses:

H0 : P = 0.2

H1 : P < 0.2

Option A is correct

_____________________________

For the test statistic, Z, let's use the formula:

[tex] Z = \frac{p'- P}{\sqrt{\frac{P(1-P)}{n}}} [/tex]

[tex] = \frac{0.19 - 0.2}{\sqrt{\frac{0.2(1 - 0.2)}{6965}}} = -1.887 [/tex]

Z = -1.887 ≈ -1.89

___________________________

The p-value.

This is a left tailed test.

Using z table,

P-value = P(Z ≤ -1.89) = 0.029

The pvalue is 0.029

Decision:

Because the pvalue, 0.029 is greater than level of significance, 0.01, we fail to reject null hypothesis, H0.

Conclusion:

There is not enough sufficient evidence to conclude that the return rate is less than 20%

Answer:

y = 6x - 7

Step-by-step explanation:

We can use the equation y = mx + b as a guide to help us solve this problem

The variables are given in the problem, so we just need to replace them with their respective variables, which give us:

y = 6x - 7

Answer:

The third one down is the correct answer.

Answer:

[tex]-\frac{2197}{3375}\\\mathrm{Decimal:\quad }\:-0.65096[/tex]

Step-by-step explanation:

[tex]-\left(\frac{13}{15}\right)^3\\\mathrm{Apply\:exponent\:rule}:\quad \left(\frac{a}{b}\right)^c=\frac{a^c}{b^c}\\\left(\frac{13}{15}\right)^3=\frac{13^3}{15^3}\\=-\frac{13^3}{15^3}\\13^3=2197\\=-\frac{2197}{15^3}\\15^3=3375\\=-\frac{2197}{3375}[/tex]

Answer:

[tex] = \frac{ - 2197}{3375} [/tex]

Step-by-step explanation:

[tex]cube = {x}^{3} \\ (\frac{ - 13}{15}) ^{3} \\ \frac{ - 13}{15} \times \frac{ - 13}{15} \times \frac{ - 13}{15} \\ \\ = \frac{ - 2197}{3375} [/tex]

hope this helps

brainliest appreciated

good luck! have a nice day!

Answer:

1. x = 0

2. x= 0

3. x = 10

4. x = -4

5. x = 0

6. x = -1

Answer:

Step-by-step explanation:

8x^2 + 12x

(x+4)^2

Answer:

Step-by-step explanation:

8x2 + 12x = (4x) × (2x) + (4x) × (3)   ; we factor 4x out.

                = 4x( 2x + 3)

Answer:

No

Step-by-step explanation:

Not all parallelograms are rhombuses, some parallelograms include rectangles, squares, hexagons, etc.

No. Jan is not correct. So, all parallelograms are not rhombuses.

A rhombus is a parallelogram because the opposite sides are parallel but every parallelogram is not a rhombus because all sides may not be equal. Every square is a rectangle because opposite sides are equal but not every rectangle is a square because all sides might not be equal. Every square is rhombus because all sides are equal but not every rhombus is a square because the angles might not be right angles.

here, we have,

We need to identify the properties of the given figure in order to answer why one figure can not be the other one:

A rhombus has all sides equal as well as parallel but all angles might not be right angles.

A square has all four sides equal and has 4 right angles.

A rectangle has equal opposite sides and 4 right angles.

A parallelogram has opposite parallel sides.

Hence, a rhombus can be a parallelogram because the opposite sides are parallel but every parallelogram can not be a rhombus because all sides may not be equal. Every square is a rectangle because opposite sides are equal but not every rectangle is a square because all sides might not be equal. Every square is rhombus because all sides are equal but not every rhombus is a square because the angles might not be right angles.

A parallelogram has opposite sides parallel and equal in length. Also, opposite angles are equal. Squares, rectangles, and rhombuses are all parallelograms. So all parallelograms are not rhombuses.

Not all parallelograms are rhombuses, some parallelograms include rectangles, squares, hexagons, etc.

To know more about rhombus here

brainly.com/question/12665650

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Answer:

20 miles = 32 kilometers

64 kilometers = 40 miles

Step-by-step explanation:

Answer:

Applying Pythagorean theorem:

r = sqrt(3^2 + (14/2)^2) = sqrt(9 + 49) = sqrt(58) = ~7.6 cm

Hope this helps!

:)

Answer:

its 3.1 miles hope this helped :)

Answer:

see explanation

Step-by-step explanation:

Given

[tex]\frac{x}{7}[/tex] + 2y = 6

Multiply through by 7 to clear the fraction

x + 14y = 42 ( subtract 14y from both sides )

x = 42 - 14y

Answer:

-The volume of the cone is 100.5[tex]in^3[/tex] .

Step-by-step explanation:

To find the volume of cone, you need the formula:

[tex]V =\frac{1}{3} \pi r^2 h[/tex]

-Use the radius and the height for the formula:

[tex]V =\frac{1}{3} \pi 4^2 6[/tex]

-Then, you solve:

[tex]V =\frac{1}{3} \pi 4^2 6[/tex]

[tex]V = \frac{1}{3}\pi[/tex] × [tex]4^2[/tex] × [tex]6[/tex]

[tex]V = \frac{1}{3}\pi[/tex] × [tex]16[/tex] × [tex]6[/tex]

[tex]V = \frac{1}{3}\pi[/tex] × [tex]96[/tex]

[tex]V = \frac{96}{3} \pi[/tex]

[tex]V = 32\pi \approx 100.53[/tex]

-Round to the nearest tenth:

[tex]V \approx 100.5[/tex]

So, therefore, the volume of the cone is 100.5[tex]in^3[/tex] .

So the right answer is 1.8

Look at the attached picture

Hope it will help you

Good luck on your assignment

Answer:

A

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

[tex]r=\frac{\frac{4}{25} }{\frac{2}{5} } \\r=\frac{4}{25} \times \frac{5}{2} =\frac{2}{5} <1\\s_{\infty}=\frac{a}{1-r} =\frac{\frac{2}{5} }{1-\frac{2}{5} } =\frac{2}{5} \times \frac{5}{3} =\frac{2}{3}[/tex]

Answer:12m

Step-by-step explanation:

The length of the lace required will be the same as that obtained by calculating the perimeter of that table, so p= (L+W)×2

Hence, P=(4m+2m)×2

P= 12m

Answer:

49.81

Step-by-step explanation:

the formula I used is distance=[tex]\sqrt{(x_{2}-x_{1})+(y_{2}-y_{1})}[/tex]

Lets say we are finding the distance from c to y

c=(-6,9)

y=(5,9)

cy=[tex]\sqrt{(5-(-6))^{2}+(9-9)^2 }[/tex]

cy=[tex]\sqrt{(11)^2+(0)^2}[/tex]

cy=[tex]\sqrt{121+0}[/tex]

cy=[tex]\sqrt{121}[/tex]

cy=11

And you can find the distance between y and i, i and d, d and o, o and c, using the same formula.

After solving the distance of all I got

yi=16.55294536

id=1

do=9.219544457

oc=12.04159458

After you add them all up you get 49.8140844 which rounded to the nearest hundredth is 48.81.

Thank you and I hope that is helpful.

Sorry that is actually wrong

Check out the other answer.

Answer:

51.53

Step-by-step explanation:

Answer:

Step-by-step explanation:

y intercept please scroll down--i need to see the rest of the graph-- y intercept is where the graph intersects with the y axis

x intercepts are x=2 and x=6

greatest value of y is y=2 and it occurs when x=4

for x between... what are the options?

   if the options are greater than, equal to, or less than, the answer is greater than

Answer:

7t +5

Step-by-step explanation:

6t +7 -2 +t

Combine like terms

6t+t  +7-2

7t +5

Answer:

Relax. The answer is 7t +5

Step-by-step explanation:

Circle the 2 variables (T)

Next re-write the equation and put the varbiles equation 6t+t.

Then you have 7-2 left, you then put it next to the new equation but make sure when you do that it looks like this 6t+t+7-2.

Last you solve and your answer should be 7t+5.

Note: If a variable is alone like the t then make sure you put a one next to it

Answer:

(9,12).

Step-by-step explanation:

If a figure dilated by a scale factor of k and origin is the center of dilation, then the relation between point and its image is defined as

[tex]P(x,y)=P'(kx,ky)[/tex]

It is given that a figure is dilated by a scale factor of 3 and origin is the center of dilation. So,

[tex]P(x,y)=P'(3x,3y)[/tex]

We need to find the image of a vertex located at (3, 4). So, substitute x=3 and y=4 in the above rule of dilation.

[tex]P(3,4)=P'(3(3),3(4))[/tex]

[tex]P(3,4)=P'(9,12)[/tex]

Therefore, the image of a vertex located at (3, 4) is (9,12).

Answer: 9,12

Step-by-step explanation:

Answer: nonnumeric growing patteren: A repeating pattern has a pattern unit that repeats over and over again. nonnumeris repeating patteren: A growing pattern gets bigger in the same way over and over again.

Answer:

Chord = 2 • sine (Central Angle) • radius

radius = 8 cm / 2 * 0.86603

radius = 4.6187776405  cm

Step-by-step explanation:

Answer:

figure it out urself

Step-by-step explanation:

Answer:

4/8 +6/8 I just verfying the other person's. ok

Step-by-step explanation:

I did it on a calculator ;b

PLEASE MARK FallOutChild brainliest!!

Answer:

4/8 + 6/8 = 10/8 or 1 2/8, 1 1/4

Step-by-step explanation:

When it asks for like units, it's asking for the same denominator value. You can not add fractions together when they do not have a common denominator

if you multiply the denominator and numerator in 2/4 by 2, you get 4/8

Result of 4/8 + 6/8 gives you an improper fraction of 10/8

Hope this Helps!

Answer:

$754.05

Step-by-step explanation:

We have to find the volume of one tank and multiply it by the cost of renting the tank per cubic foot.

The volume of a cylinder is:

[tex]V = \pi r^2h[/tex]

where r = radius

h = height

Each tank has a diameter of 8 feet (radius = 4 feet) and a height of 3 feet.

The volume of the tank is therefore:

[tex]V = \pi * 4^2 * 3 = 150.81 ft^3[/tex]

The cost of renting is $5 per cubic foot.

Therefore, the cost of renting a tank is:

150.81 * 5 = $754.05

It costs $754.05 to rent a tank.

Answer:2.5 cups

Step-by-step explanation:

Given

Rosanne runs 6 miles in an hour

If she drinks 0.5 cups of water every  [tex]\frac{1}{3}[/tex]  of an hour

So in 1 hour Rosanne drinks 1.5 cups

So, for 6 miles Rosanne drinks 1.5 cups

i.e. For   [tex]1\ mile \quad \equiv \quad \frac{1}{4}\ \text{cup}[/tex]

for    [tex]10\ mile\quad \equiv \quad \frac{10}{4}\ \text{cup}[/tex]

[tex]=2.5\ \text{cup}[/tex]

Answer:

2.5

Step-by-step explanation:

Answer:

B),D),E)

Step-by-step explanation:

Trust

Answer:

B,D,E

Step-by-step explanation:

I got it correct on the quiz

Answer:

-15

Step-by-step explanation:

Since each vial contains one gram. and he has 33 grams, so he has 33 vials of one gram each. since he has a box that has 48 vials. he needs 15 less vials to divide the salt into vials that contain one gram each

Please mark as brainliest

Answer:

V = h·w·t cm³

Step-by-step explanation:

The volume is calculated no different than you would with a box.

V= length x width x height and yes centimeters cubed Answer:

Step-by-step explanation: