A random sample of internet subscribers from the west coast of the United States was asked if they were
satisfied with their internet speeds. A separate random sample of adults from the east coast was asked the same
question. Here are the results:


A market researcher wants to perform a x2 test of homogeneity on these results.
What is the expected count for the cell corresponding to east coast subscibers who
responded "yes"?
You may round your answer to the nearest hundredth.

Answer:

f(x)= x(x+2)(x-1)(x-2)

Step-by-step explanation:

before taking the zeros each zeros were in the forrm

x+a=0 where 'a' is any number

then after taking the zeros, the zeros were in the form x=0 x=2 x=1

so we are gonna take then back to the form before taking the zeros

[tex]a = \pi \times {r}^{2} \\ a = 3 \times {r}^{2} [/tex]

Hey, welcome to Brainly! You need to attach a picture, for users to give you an answer (or give us the radius of the circle.) If you have the radius of the circle, multiply 3 by the radius square (πr^2)

Answer:

C) Trapezoid

Step-by-step explanation:

Given

[tex]A = (0,0)[/tex]

[tex]B = (4,8)[/tex]

[tex]C = (12,8)[/tex]

[tex]D=(16,0)[/tex]

Required

The possible shape

The above are 4 vertices.

Hence, the shape cannot be

(a) Triangle ---- it has 3 vertices

(b) Pentagon ---- it has 5 vertices

Calculate distance AB using distance formula

[tex]AB = \sqrt{(x_1 - x_2)^2 + (y_1 - y_2)^2[/tex]

Where:

[tex]A = (0,0)[/tex]

[tex]B = (4,8)[/tex]

[tex]AB = \sqrt{(0 - 4)^2 + (0 - 8)^2[/tex]

[tex]AB = \sqrt{( - 4)^2 + ( - 8)^2[/tex]

[tex]AB = \sqrt{16+64[/tex]

[tex]AB = \sqrt{80[/tex]

[tex]AB = 8.94[/tex]

Calculate distance BC using distance formula

[tex]BC = \sqrt{(x_1 - x_2)^2 + (y_1 - y_2)^2[/tex]

Where:

[tex]B = (4,8)[/tex]

[tex]C = (12,8)[/tex]

[tex]BC = \sqrt{(4 - 12)^2 + (8 - 8)^2[/tex]

[tex]BC = \sqrt{(-8)^2 + (0)^2[/tex]

[tex]BC = \sqrt{64 +0[/tex]

[tex]BC = \sqrt{64[/tex]

[tex]BC = 8[/tex]

Since

[tex]AB \ne BC[/tex]

Then, the polygon is not a square

The last available option is (c) trapezoid

Answer: C. Trapezoid

Step-by-step explanation:

Graph the points and you get a trapezoid!!!

Hope this helps!!!

Answer:

912

Step-by-step explanation:

Answer:

[tex]Perimeter = 124m\\\\Length = 38m\\\\Perimeter = 2(length + breadth)\\\\124 = 2( 38 + breadth)\\\\62 = 38 + breadth\\\\breadth = 24m\\\\Area = length \times breadth = 38 \times 24 = 912m^2[/tex]

Answer:

previous questions have been asked using this same question

Step-by-step explanation:

A.) adjusted balance method

Answer:

(-8, 3)

Step-by-step explanation:

Answer: ( -8,3)

Step-by-step explanation:

It's not rocket science.

An ordered pair is a composition of the x coordinate (abscissa) and the y-coordinate (ordinate).

To find the ordered pair you need to be able to identify the y and x axis.

y axis is vertical

x  axis is horizontal

You want to start on the x axis and find where you think the dot is stopping at...which is -8 in the problem... once you do that move on up to the dot and move your finger to the left to see where that dot is leading you to, which is 3.

And there you have it. I hope this helps. I tried my best to explain.

Answer:

The y-intercept is (0,0) or the origin, it's basically the point that intercepts the line of y.

Answer:

0

Step-by-step explanation:

I think 0...

...

...

...

Hope this helps <3

hehe it hit 0 and it is on y so uhh yeah...

[tex]\mathfrak{\huge{\orange{\underline{\underline{AnSwEr:-}}}}}[/tex]

Actually Welcome to the concept of expo functions.

f(x) = -8(2)^x - 12 ,

for f(0) ,here substitute x = 0

so we get as ,

==> f(0) = -8(2)^0 -12

==> f(0) = -8-12

==> f(0) = -20

hence, f(0) = -20

Answer:

Step-by-step explanation:

If it went from f(x) ⟹ f(0), that means that x=0.

So, you would plug in 0 for x in f(x)=-8(2)^x-12.

After plugging in the value of x, x=0, into the equation, you should have

f(0)=8(2)^0-12

Now, we are solving for f(0) (or f(x)).

You would use PEMDAS to solve this:

P-PARENTHESIS

E-EXPONENT

M-MULTIPLICATION

D-DIVISION

A-ADDITION

S-SUBTRACTION

There are no parenthesis

there are exponents,

(2)^0 and that =1

so we have f(0)=8(1)-12

there is multiplication, 8(1) which =8

so now we have f(0)=8-12

there is no division

there is subtraction

8-12, which equals -4

f(0)=-4

Answer:

h= 33mm

volume of square pyramid =1/3 Sh

5 x 5=25 /3 =8.3

275/8.3 =33

Answer:

its the 4 on the number line under her name

Answer:

4.5 is the answer to k I've done this before

Answer:

3.5

Step-by-step explanation:

19.5 divided 6.5 is 3. 16.5 divided by 5.5 is also 3. Therefore you must

divide 10.5 by 3 (in order to find K) which leads to 3.5.

Answer:

B

Step-by-step explanation: Count the egdes

Answer:

20 is the answer

Step-by-step explanation:

If you multiply 2.4 enough times until you hit 50 it’s 20x2.4 bc 2.4x21 is 50.4 a little over

Answer:

50%

Step-by-step explanation:

because it is a two side coin

Answer:

[tex]Sum = 64[/tex]

Step-by-step explanation:

Given

[tex]n = 55[/tex]

[tex]x \to 55\ digit[/tex] 1's

Required

The sum of the [tex]digits[/tex] of the [tex]product[/tex]

To do this, we start with smaller numbers

[tex]55*11 = 605[/tex]  ---- 2 digits

[tex]55*111 = 6105[/tex] --- 3 digits

[tex]55*1111 = 61105[/tex] -- 4 digits

[tex]55*11111 = 611105[/tex] -- 5 digits

[tex]55*111111 = 6111105[/tex] --- 6 digits

Notice that as the 1's increase on the left-hand side, the 1's increase on the right-hand side

The difference between the count of both 1's is 2 1's

So, for n digits, we have: 6[n - 2, 1's]05

So, the sum is:

[tex]Sum = 6 + (n - 2) + 0 + 5[/tex]

For 55 digit, [tex]n = 55\\[/tex]

So, we have:

[tex]Sum = 6 + (55 - 2) + 0 + 5[/tex]

[tex]Sum = 6 + 53 + 0 + 5[/tex]

[tex]Sum = 64[/tex]

Answer:

c = 3

Step-by-step explanation:

Given

[tex]\frac{2}{c-2}[/tex] - [tex]\frac{3}{c+2}[/tex] = [tex]\frac{7}{c^2-4}[/tex] ← factor the difference of squares

[tex]\frac{2}{c-2}[/tex] - [tex]\frac{3}{c+2}[/tex] = [tex]\frac{7}{(c-2)(c+2)}[/tex]

Multiply through by (c - 2)(c + 2) to clear the fractions

2(c + 2) - 3(c - 2) = 7 ← distribute and simplify left side

2c + 4 - 3c + 6 = 7

- c + 10 = 7 ( subtract 10 from both sides )

- c = - 3 ( multiply both sides by - 1 )

c = 3

Answer:

73.2x - 9

Step-by-step explanation:

Answer:

7.32 x 10-9 =64.2

Step-by-step explanation:

Answer:

20%

Step-by-step explanation:

300 divide by 60. the answer is 20 percent

Answer: C

Step-by-step explanation:

Mistook the last one for different type of math apologies...

I just answered in the comments.

The correct answer is option C.

24% (24/100)

Got answer by adding all of them together and dividing by 20

Answer:

10/41

Step-by-step explanation:

Answer:

exponential growth

Step-by-step explanation:

Answer:

im sorry

Step-by-step explanation:

i need points or else i fail

Answer: 252 ft

Step-by-step explanation:

Perimeter is 2(l + w), so when length and width are scaled by 3.5 the new perimeter is 2(3.5l + 3.5w), when factored is 7(l+w). since we are multiplying both sides by 3.5, we multiply 72 by 3.5 to get 252.

Answer:

4 books

Step-by-step explanation:

$3.80 divided by 95cents = 4

Answer:

27

Step-by-step explanation:

Answer: D

Step-by-step explanation:

Answer:

Step-by-step explanation:

D none of them hope this helps

Answer:

x ≤ 6

Step-by-step explanation:

Cost of fish = $8

You can spend at most ​$48

How many of these fish can you​ buy?

Let

x = number of fishes you can buy

The inequality is

8x ≤ 48

Divide both sides by 8

x ≤ 48/8

x ≤ 6