If you help me with this question ill give you brainliest

Answer:

There is significant evidence to support that more than 3% of the population of the city got infected by the virus.

Step-by-step explanation:

x = 40 ; n = 1000

phat = x / n = 40 / 1000 = 0.04 = 4%

H0 : p = 0.3

H1 : p > 0.3

The test statistic :

(Phat - P) ÷ √(p(1 - p) / n)

1 - p = 1 - 0.3 = 0.7

(0.4 - 0.3) ÷ √(0.3(0.7) / 1000)

0.1 ÷ 0.0144913

= 6.9

Pvalue ; Using the Pvalue from Zstatistic calculator :

Pvalue < 0.00001

Reject H0, if Pvalue < α

0.00001 < α ; We reject H0 ; Hence, there is significant evidence to support that more than 3% of the population of the city got infected by the virus.

Answer:

is this a joke question? it is very easy. one half or 1/2

Step-by-step explanation:

3. 606

please mark brainliest

C. 4140

Thanks & im sorry ^^

Answer:

3960 degree is the answer

Step-by-step explanation:

180(n-2)

180(24-2)

180*22

3690

here,n =number of sides

Answer:

-14

Step-by-step explanation:

(-12)+(-2)

You solve using Pemdas, doing the (-8/4) first, and then doing (-6)(2)

The answer is the two values added together.

Answer:

1 < a < 2

Step-by-step explanation:

8 < 2 (a+3) <10

8 < 2a+6 < 10 (Simplify all parts of the inequality)

8+ −6 < 2a +6+ −6 < 10+ −6 (Add -6 to all parts)

2 < 2a < 4

2/2 < 2a/2 < 4/2 (Divide all parts by 2)

=1 < a < 2

Given:

The function is:

[tex]g(a)=\dfrac{8-a}{4}[/tex]

To find:

The difference quotient of the function.

Solution:

Formula for difference quotient of the function f(x) is:

[tex]DQ=\dfrac{f(x+h)-f(x)}{h}[/tex]

We have,

[tex]g(a)=\dfrac{8-a}{4}[/tex]

The difference quotient of the function g(a) is:

[tex]DQ=\dfrac{g(a+h)-g(a)}{h}[/tex]

[tex]DQ=\dfrac{\dfrac{8-(a+h)}{4}-\dfrac{8-a}{4}}{h}[/tex]

[tex]DQ=\dfrac{\dfrac{8-a-h-8+a}{4}}{h}[/tex]

[tex]DQ=\dfrac{-h}{4h}[/tex]

[tex]DQ=-\dfrac{1}{4}[/tex]

Therefore, the difference quotient of the given function is [tex]-\dfrac{1}{4}[/tex].

Answer:

They are right, It is -1/4. The second one.

Step-by-step explanation:

Edge 2021

Answer:68

Step-by-step explanation:

I guesses but most likely right lol

You speak my language :0

jsnhdnfdjenkenhfbtrhgnvc

Answer:

-3.5+27

Step-by-step explanation:

-2.7+x=-3.5

x=-3.5-(-2.5)

x=-3.5+2.5

x=2.0

Answer:

7

Step-by-step explanation:

Let the missing number of the data be x.

[tex] \because mean = \frac{3 + 4 + x + 7 + 2 + 1}{6} \\ \\ \therefore 4 = \frac{17 + x }{6} \\ \\ \therefore 4 \times 6 = 17 + x \\ \\ \therefore 24 - 17 = x \\ \\\therefore x = 7[/tex]

Thus, the missing number of the data is 7.

Answer:

so basically this is easy if you break it down

Step-by-step explanation:

the triangle area= 5x4/2= 20/2= 10

there are 4 triangles so 10 x 4=40

square area= 5x5= 25

40+25= 65units^2

Answer:

3,266.53

Step-by-step explanation:

Rounded to the nearest hundreth thousandths

9514 1404 393

Answer:

  (b)  976 m³

Step-by-step explanation:

The total surface area is the sum of the areas of the faces and bases.

The two bases are triangles, each with area ...

  A = 1/2bh

So, the two of them together will have an area of ...

  A = 2(1/2)bh = bh

where b is the base of the triangle, and h is its height. These values are shown as 14 m and 24 m, respectively.

  Total base areas = (14 m)(24 m) = 336 m²

__

The total area of the rectangular faces is the sum of products of length and width. The width of each face is the same as the height of the prism, and the sum of face lengths is the perimeter of the triangular base.

The prism height is 10 m, and the perimeter of the base triangle is  (14 m +25 m +25 m) = 64 m. Then the lateral area of the prism is ...

  Total lateral area = (10 m)(64 m) = 640 m²

So, the total surface area of the prism is ...

  base area + lateral area = 336 m² + 640 m² = 976 m²

9514 1404 393

Answer:

  Only Glass B is large enough

Step-by-step explanation:

For repetitive calculations, I like to use a calculator or spreadsheet. The attachment shows the volumes for the three glasses. Only Glass B has a volume that exceeds 75 cubic inches.

__

Note that Glass A has a diameter of 5 inches, so a radius of 2.5 inches.

Answer:

[tex]first \: answer \: is \: correct \: \\ [/tex]

Answer:

3.2

Step-by-step explanation:

0.8(4) = 3.2

Answer:

The sum of the series is: 749

Step-by-step explanation:

Given

[tex]a_1 = 8[/tex]

[tex]a_{14} = 99[/tex]

[tex]n = 14[/tex]

Required

The sum of the series

This is calculated using:

[tex]S_n = \frac{n}{2}[a_1 + a_n][/tex]

Substitute 14 for n

[tex]S_{14} = \frac{14}{2}[a_1 + a_{14}][/tex]

[tex]S_{14} = 7[a_1 + a_{14}][/tex]

Substitute values for a1 and a14

[tex]S_{14} = 7[8 + 99][/tex]

[tex]S_{14} = 7*107[/tex]

[tex]S_{14} = 749[/tex]

Answer:

0.0825

Step-by-step explanation:

33/400=0.0825

Answer:

[tex]x =\sqrt 5[/tex]

[tex]y = \sqrt{5[/tex]

Step-by-step explanation:

Given

The attached triangle

Required

Solve for x

Considering angle 45 degrees, we have:

[tex]\cos(45) = \frac{y}{\sqrt{10}}[/tex] --- cosine formula i.e. adj/hyp

Solve for y

[tex]y = \sqrt{10} * \cos(45)[/tex]

In radical form, we have:

[tex]y = \sqrt{10} * \frac{1}{\sqrt 2}[/tex]

[tex]y = \sqrt{10/2}[/tex]

[tex]y = \sqrt{5[/tex]

To solve for x, we make use of Pythagoras theorem

[tex]x^2 + y^2 = (\sqrt{10})^2[/tex]

[tex]x^2 + y^2 =10[/tex]

Substitute for y

[tex]x^2 + (\sqrt 5)^2 =10[/tex]

[tex]x^2 + 5 =10[/tex]

Collect like terms

[tex]x^2 =10-5[/tex]

[tex]x^2= 5[/tex]

Solve for x

[tex]x =\sqrt 5[/tex]

Answer:

12

Step-by-step explanation:

because 6x=72 so you could do 72/6 which 72/6 is 12 so the answer is 12

Answer:

If 83% is incorrect the answer would be A - 93%

Hope this helps!

Mark me brainliest if I'm right :)

Answer: C

Step-by-step explanation:

To find the end behavior of a function, we find it's limits as x approaches infinity, getting the correct option as:

As x approaches plus-or-minus infinity = limit of StartFraction 4 Over x Superscript 5 EndFraction as x approaches plus-or-minus infinity, so as x approaches infinity, g (x) approaches 0.

Function:

The function given is:

[tex]g(x) = \frac{4x+9}{x^6+1}[/tex]

Limit as x goes to infinity:

To find the limit of a function as x goes to infinity, we consider the term with the highest exponent in the numerator and in the denominator. So

[tex]\lim_{x \rightarrow \infty} g(x) = \lim_{x \rightarrow \infty} \frac{4x+9}{x^6+1} = \lim_{x \rightarrow \infty} \frac{4x}{x^6} = \lim_{x \rightarrow \infty} \frac{4}{x^5} = \frac{4}{\infty^5} = 0[/tex]

The graphic of the function, given at the end of this answer, corroborates the answer.

Thus, the correct option is:

As x approaches plus-or-minus infinity = limit of StartFraction 4 Over x Superscript 5 EndFraction as x approaches plus-or-minus infinity, so as x approaches infinity, g (x) approaches 0.

For more on limits as x approaches infinity, you can check brainly.com/question/12207599.

Answer:

A

E

F

Step-by-step explanation: there the even ones

as we are to find the perimetre of a circle 2πr

it will be 87.96m

since its a semi circle lets just divide by 2

now we get our answer that's 43.96m

Answer:

9

Step-by-step explanation:

Answer:

.................30..................

9514 1404 393

Answer:

  $2,617.50

Step-by-step explanation:

Using this table, the tax is ...

  tax = 2% × $3000 + 3% × (5000 -3000) + 5% × (17000 -5000) + ...

     5.75% × (50,000 -17,000)

  = $60 + 60 + 600 + 1897.50

  tax = $2,617.50

__

Additional comment

Above $17,000, the tax is more easily computed as ...

  tax = (5.75% × income) - 257.50

Each tax bracket can have a simplified formula like this.