In Juneau, Alaska, the 30-year annual snowfall average is 86. 7 inches with a standard deviation of 40. 4 inches. The last four years saw an average annual snowfall of 115. 7 inches, 62. 9 inches, 168. 5 inches, and 135. 7 inches. Hia performs a hypothesis test on this data to determine if the next 30-year norm will have a different average if the trend from the last four years continues. She uses a significance level of 5%. Which of the following is a conclusion that she may make? The z-statistic is 1. 44, so the null hypothesis cannot be rejected. The z-statistic is 1. 68, so the null hypothesis cannot be rejected. The z-statistic is 1. 85, so the null hypothesis should be rejected. The z-statistic is 4. 6, so the null hypothesis should be rejected.

Answer:

(2x + y)(2x - y - 1)

Step-by-step explanation:

4x² - y² - 2x - y

4x² - y² is a difference of squares and factors in general as

a² - b² = (a - b)(a + b) , then

4x² - y²

= (2x)² - y²

= (2x - y)(2x + y)

expression is now

(2x - y)(2x + y) - (2x + y) ← factor out (2x + y) from each term

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

Answer:

The answer is 16.4 inches

Step-by-step explanation:

The result is calculated by adding all the values together. 3.3+10.6+2.5=16.4

Answer:

Step-by-step explanation:

X1=-4

Y1=7

X2=-3

Y2=6

(-2,0 ) X INTERCEPT

(0,-7)Y INTERCEPT OR B

M=6-7/-3+4

M=_1

Y=-1X+-7

The standerd form 4m – 2m^4 – 6m^2 +9.

We have given that the polynomial given below we have to find the standerd form  of the polynomial.

[tex]P(x)=a_nx^n+a_{n-1}x^{n-1}+......+a_1x+a_0[/tex]

n=4

Standard form of the polynomial

[tex]4m - 2m^4 - 6m^2 + 9[/tex]

Rearranginge term we get

[tex]=-2m^4 - 6m^2 + 4m + 9[/tex]

The third term of the given polynomial is 0.

Therefore,the standard form is,

[tex]-2m^4 - 6m^2 + 4m + 9[/tex]

To learn more about polynomial visit:

https://brainly.com/question/5366408

To find the probability, we'll need to find the number of possibilities with an outcome that we want, as well as the total number of outcomes.

Multiples of 4: 4, 8, 12

---There are 3 possibilities

Total outcomes: 12

3 / 12 = 1/4 = 0.25 = 25%

Probability Amy rolls a multiple of 4 = 25%

Hope this helps!

Answer:

$5280

Step-by-step explanation:

Since the radius of the circle is 70m, the perimeter or circumference of the circle is 2πr --> 2 * 70 * 22/7 which is 440 meters. Since each meter of fencing costs $12, the total cost of the fencing is $5280

Answer:

[tex]-3m-2k[/tex]

Step-by-step explanation:

Given to simplify : 3k - (2m + 5K) - m

Solution :

[tex]\mathrm{Apply\:the\:distributive\:law}:\quad \:-\left(a+b\right)=-a-b[/tex]

[tex]-\left(2m+5k\right)=-2m-5k[/tex]

[tex]=3k-2m-5k-m[/tex]

[tex]\mathrm{Group\;like\;terms}[/tex]

[tex]=-2m-m+3k-5k[/tex]

[tex]\mathrm{Group\;like\;terms}[/tex]

[tex]=-3m+3k-5k[/tex]

[tex]\mathrm{Group\;like\;terms}[/tex]

[tex]=-3m-2k[/tex]

[RevyBreeze]

Use the distributive property:-

-(2m+5k) = -2m-5k [tex]\checkmark[/tex]

[tex]\rule{270}{1}[/tex]

Let's simplify this expression by combining like terms:-

[tex]\bigstar[/tex] The like terms are:-

3k, -5k

and

-2m, -m

[tex]\bigstar{[/tex] Combine Like terms:-

3k-5k=-2k

-2m-m=-3m

Hence, we have:-

[tex]\bigstar{\boxed{\pmb{-2k-3m}}[/tex]

Hope everything is clear; if you need any clarification/explanation, kindly let me know, and I will comment and/or edit my answer :)

Answer:

x =(7-√97)/-4= 0.712

Or

x =(7+√97)/-4=-4.212

Answer: 3/10

Step-by-step explanation: so you add 15+3+2+4+5+1 and that is 30 then you simplify 30 and get 3/10

Let's solve this inequality:-

3x<18

Divide both sides by 3:-

x<6

So numbers less than 6 will make this inequality [tex]\sf{true}[/tex].

You haven't listed any numbers, so I don't know what options you have,

Please list the numbers in the comments & I will edit my answer :)

Hope everything is clear; if you need any explanation/clarification, kindly let me know, and I'll comment and/or edit my answer :)

Answer:

The possible answers are all numbers above 6.

Step-by-step explanation:

3x>18

3x/3> 18/3

x> 6

Answer:

5

Step-by-step explanation:

Determina el grado de y =3r⁵ + 8r³

5

Answer:

C. (25,20)

Step-by-step explanation:

Edge2022 <3

Good luck and remember (yall that take edge) , you can get through the day no matter how hard it may seem. I have faith In you guys :).

If number of hours worked is less than 20, 500 flat rate is preferable

and, If number of hours is more than 20, hourly rate i.e. 20 per hour is better.

An inequality is a mathematical statement that compares two values or expressions using inequality symbols such as "<" (less than), ">" (greater than), "<=" (less than or equal to), ">=" (greater than or equal to), or "≠" (not equal to).

In the first scenario, where there is a $500 flat rate regardless of the number of hours worked, the pay per hour remains constant at $500 divided by the number of hours worked.

So, the graph for this scenario would be a horizontal line at a height of $500.

In the second scenario, where the contractor is paid $20 per hour worked, the pay per hour is fixed at $20.

let the number of hours be worked be x.

Then, 20x < 500

x< 25

So, if number of hours worked is less than 20, 500 flat rate is preferable

and, If number of hours is more than 20, hourly rate i.e. 20 per hour is better.

Learn more about Inequality here:

https://brainly.com/question/11854205

#SPJ7

Answer: 40 degrees

Step-by-step explanation:

The required function when the parent function is stretched comes to be [tex]f(x)=x^{3} +4[/tex].

The parent function is:

[tex]f(x)=x^3[/tex]

If a function f(x) is vertically translated by k units f(x) becomes f(x)+k where k is positive.

Given function [tex]f(x)=x^3[/tex] is vertically shifted by 4 units

So, f(x) will become f(x)+4

[tex]f(x)+4 = x^{3} +4[/tex]

So, the required function is [tex]f(x)=x^{3} +4[/tex]

Therefore, the required function when the parent function is stretched comes to be [tex]f(x)=x^{3} +4[/tex].

To get more about graphs visit:

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Answer:

A

Step-by-step explanation:

edge, 2022

[tex]\qquad\qquad\huge\underline{{\sf Answer}}[/tex]

Area of a Parallelogram is ~

[tex]\qquad \sf  \dashrightarrow \:base \times height[/tex]

[tex]\qquad \sf  \dashrightarrow \:7 \times 5[/tex]

[tex]\qquad \sf  \dashrightarrow \:35 \: {cm}^{2} [/tex]

Answer:

(5,18)

Step-by-step explanation:

Plug in the X value into the Y equation,

Y=3(5) +3

Y=15 +3

Y=18

Then format your results as coordinates in the standard (X,Y) format

(X,Y)

(5,Y)

(5,18)

Answer:

3.486 feet (1.06 m) or 3 feet (0.91 m) five inches

Step-by-step explanation:

17 percent of 4.2 is 0.714 and 4.2–0.714 is 3.486

Step-by-step explanation:

Answer:

118.25

Step-by-step explanation:

Answer:

a) 3 hr    b  )  32.5 miles

Step-by-step explanation:

195 m / 65 m/hr = 3 hr

65 m/hr  *  1/2 hr = 32.5 miles

Answer:

27

Step-by-step explanation:

[tex]\frac{3^2\left(2^3+4\right)}{2^2}[/tex]

[tex]\mathrm{Solve\;3^2\cdot(2^3+4):108}[/tex]

[tex]\mathrm{Solve\;2^2:4}[/tex]

[tex]=\frac{108}{4}[/tex]

[tex]\mathrm{Divide\:the\:numbers:}\:\frac{108}{4}=27[/tex]

~Lenvy~

Answer:

f(1) = 12

Step-by-step explanation:

We know that f(x)=f(x-1)+2x+1

We are told that f(2) = 17

Use the first equation to calculate f(1).  Since f(2) is known and f(x-1) will become f(1) after f(2-1) is simplified to f(1).

17 = f(2-1)+2*2+1

f(2-1) = 17 - 5

f(1) = 12

By finding the side length of the square, we will see that the area is 20 square units.

For a square of side length S, the area is:

A = S^2

In this case, the side length of the square will be the distance between two consecutive vertices, so we can say that S is the distance between points G and O.

Remember that the distance between two points (x₁, y₁) and (x₂. y₂) is:

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

So the distance between the points G(1, 0) and O(5, 2) is:

[tex]S = \sqrt{(5 - 1)^2 + (2 - 0)^2} = \sqrt{20}[/tex]

Then the area of this square is:

[tex]A = S^2 = (\sqrt{20})^2 = 20[/tex]

The area is 20 square units.

If you want to learn more about squares, you can read:

https://brainly.com/question/24487155

Hey there!

(4x - 6)(x + 6y)

= (4x - 6)(1x + 6y)

= 4x(1x) + 4x(6y) - 6(1x) - 6(6y)

= 4x^2 + 24xy - 6x - 36y

Therefore, your answer is:

4x^2 + 24xy - 6x - 36y

Good luck on your assignment & enjoy your day!

~Amphitrite1040:)

Answer:

V≈2144.66cm³

Step-by-step explanation:

Answer: B. K < 13. K is 12.5, 12.5 is less than 13

1. Its not D because at the ending points of the number line; 10-20, which is less than 30.

2 It is not C because K is not on 15

3 It is not A because 12.5 is less than 13.

Hope it helps!!

length : [tex]\sf \sqrt{89}[/tex]

Explanation:

use the distance formula : [tex]\sf \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]

[tex]\sf \rightarrow \sf \sf \sqrt{(7--1)^2+(4-9)^2}[/tex]

[tex]\sf \rightarrow \sf \sf \sqrt{(8)^2+(-5)^2}[/tex]

[tex]\sf \rightarrow \sf \sf \sqrt{64+25}[/tex]

[tex]\sf \rightarrow \sf \sf \sqrt{89}[/tex]

Answer:

[tex]\sf \sqrt{89}[/tex]

Step-by-step explanation:

Let A = [tex]\sf (x_1,y_1)[/tex] = (-1, 9)

Let B = [tex]\sf (x_2,y_2)[/tex] = (7, 4)

Distance formula:

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

Input values into the distance formula and solve for d:

[tex]\sf \implies d=\sqrt{(7-(-1))^2+(4-9)^2}[/tex]

[tex]\sf \implies d=\sqrt{8^2+(-5)^2}[/tex]

[tex]\sf \implies d=\sqrt{64+25}[/tex]

[tex]\sf \implies d=\sqrt{89}[/tex]

w = won game

l = lost game

w + l = 15

and

w = I + 3

so

l + 3 + l = 15

2l = 12

l = 6

lost = 6

won = 9

Answer:

The ratio of wins to losses is 3 to 1, out of 32 total games. 3:1 has a total of 4 parts (3+1).

Total games divided by total parts is 32/4 = 8.

Now multiplying number of parts to divisor gives us 3x8 : 1x8 or 24:8. Therefore they won 24 games, lost 8.

Step-by-step explanation:

Answer:

60 hours

Step-by-step explanation:

300 ÷ 30 = 10

10 x 6 = 60

Hope this helps :)

Answer: 60 hours

Step-by-step explanation:

30=300- times 10

6=_60_