Ricky is testing soil for a contaminant at a building site,
He'll take action to stop construction if there's strong
evidence that the soil has more than 400 parts per
million (ppm) of the contaminant. He plans on using soil
from n = 30 randomly selected locations at the building
site. His hypotheses are H, :p < 400 ppm and
H:u > 400 ppm, where u is the mean amount of the
contaminant in the soil at this site,
Suppose that in reality, H, is actually true,
Which situation below would result in the lowest
probability of a Type Il error?

A) The dimensions are (x+10) by (x+10).

B) The perimeter is given by 4x+40.

C) The perimeter when x is 4 is 56.

The quadratic can be factored by finding factors of c, the constant, that sum to b, the coefficient of x.  Our c is 100 and our b is 20; we want factors of 100 that sum to 20.  10*10=100 and 10+10=20, so those are what we need.  This gives us (x+10)(x+10 for the factored form.  

Since the dimensions are all (x+10), and there are 4 sides, the perimeter is given by 4(x+10).  Using the distributive property we have 4*x+4*10=4x+40.

To find the perimeter when x=4, substitute 4 into our perimeter expression:

4*4+40=16+40=56.

Answer:

A) The dimensions are (x+10) by (x+10).

B) The perimeter is given by 4x+40.

C) The perimeter when x is 4 is 56.

Step-by-step explanation:

I filled two notebook papers to solve this

Answer:

Step-by-step explanation:

Answer:

[tex]x^3+8x^2+2x+1[/tex]

Step-by-step explanation:

Combine like terms (terms with the same exponent).

[tex]x^3+(3x^2+5x^2)+(x+x)+1=x^3+8x^2+2x+1[/tex]

"Standard form" means to list terms so the exponents go from high to low (descending order).

Answer:

The surface area of the composite figure is 1108 square inches.

Step-by-step explanation:

The surface area of the composite figure ([tex]A_{T}[/tex]) is equal to the sum of external faces of the rectangular and triangular prisms, all measured in square inches:

[tex]A_{T} = 20\,in \times 12\,in + 2\times 5\,in \times 12\,in + 2\times 20\,in \times 5\,in + 2\times 20\,in \times 11\,in + 2\times \frac{1}{2}\times 12\,in \times 9\,in[/tex]

[tex]A_{T} = 1108\,in^{2}[/tex]

The surface area of the composite figure is 1108 square inches.

Answer:

Octopus Location: 0

Step-by-step explanation:

If the octopus was swimming 3 ft below the surface, it's considered -3.

The octopus then swam up 3 feet, so we add 3 to the -3 from the previous statement.

-3 + 3 = 0

Answer:

b) 9.99 + 1.29n ≤ 50

Step-by-step explanation:

  I think,  this question is incomplete., may be there is typo. To complete the question, it's suppose to be like this  

a)9.99 + 1.29n ≥ 50

b)9.99 + 1.29n ≤ 50

c)9.99 − 1.29n  ≤ 50

d)9.99 − 1.29 n ≥ 50

well,  we have to figure out  the information given  

price of the album: $9.99

each song cost : $1.29

gift card: $50

number of songs : n

The answer  is b) 9.99 + 1.29n  ≤ 50 , because the sum of the price of the album ($9.99) and the songs ($1.29 n) must be less or equal to the value of the gift card ($50). Fore sure it 's correct.....

Answer:

11 1/5

Step-by-step explanation:

2 1/3 × 4 4/5

=7/3 × 24/5

=56/5

=11 1/5

Answer:

B

Step-by-step explanation:

7x + 1 isn't equal to 8x

For example:

Addition. In this equation, you can add all of the coefficients (2, 5, and 4) because the variables are the same (a).

2a + 5a + 4a = 11a

Subtraction. In this equation, you can subtract all of the coefficients (11, 5, and 4) because the variables are the same (a).

11a – 5a – 4a = 2a

Answer:

In two or more complete sentences, describe the transformation(s) that take place on the parent function, f(x)… ... parent function, f(x) = log(x), to achieve the graph of g(x) = log(-2x-4) + 1. 2 ... Re-write the transformed function by taking -2 common,. Step 1 -. Shift 2 unit left i.e, f(x)→f(x+b) shifting left by b unit.

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

[tex] \frac{4x - 3}{7} [/tex]

Replace y with x.

[tex]x = \frac{4y - 3}{7} [/tex]

Solve for y.

[tex]7x = 4y - 3[/tex]

[tex]{7x + 3}{} =4 y[/tex]

[tex] \frac{7x + 3}{4} = y[/tex]

Hello, I Am BrotherEye

Answer:

A. Yes a triangle can be constucted

Step-by-step explanation:

All you have to do is use the Triangle Inequality Theorem, which states that the sum of two side lengths of a triangle is always greater than the third side. If this is true for all three combinations of added side lengths, then you will have a triangle.

~

BrotherEye

Answer:

down below.

Step-by-step explanation:

20 × 400 = 8000

8000 - 7200 = 800

therefore the % mark up is 10%, because 10% of 8000 is 800.

800 + 7200 = 8000

Answer:

the answer is 11%

Step-by-step explanation:

hit me with praise and love this answer HAHA your welcome

Answer:

if that is x^2 -3|x-2|-4x=-6, then this should be the answer other wise it would be a biiiit diffrent

Step-by-step explanation:

Answer:

m=0

Step-by-step explanation:

3-3/21-8

0/21-8

0/13

0

Answer:

(8, 3) (21, 3)

slope = change in y divided by change in x

slope = (3 - 3) / (21 -8)

slope = 0 / 13

slope = 0

Step-by-step explanation:

Answer:

The polygon is a triangle, and is not a regular polygon.

Step-by-step explanation:

The polygon is a triangle because of it's three sides. It's also a non regular polygon since it's no equilateral or equiangular.

Answer:

The data is a random sample from the population of interest and The sample size is less than 10% of the population size. ( b )

Step-by-step explanation:

roasted beef protein = 20 grams  ( mean value )

sample size of soybean compound = 5

mean value of their protein = ( 15 + 22 + 17 + 18 + 23)  / 5 = 19

The conditions that have been met are :

The data is a random sample from the population of interest. and

we can say the sample size is less than 10% of population size because we do  know the population size is a large supply

Answer:

45 you have and 38 is cutted down

then 45-38 = 7 hair piece

Answer:

B because if you use 10% off it would be less thN the 5% off one the other 2 answer make no sense

9514 1404 393

Answer:

  sin(θ) = -12/13

Step-by-step explanation:

The distance from the origin to the given point is ...

  r = √(5² +(-12)²) = √169 = 13

For point (x, y) ⇔ (r; θ), recognize that (x, y) = (r·cos(θ), r·sin(θ)). This translates to ...

  sin(θ) = y/r

  sin(θ) = -12/13

Answer:

V= 8

x=4.5

BCF =48 CFE=132

V=352.8 =8.4x8.4x5

For the volume one i cant read the number but if the bottom number is 8 then V=803.84

if its 6 then v = 452.16

Step-by-step explanation:

v= 2x2x2 v = 8

x is 11x-9=7x+9 | 4x=18 | x=4.5

15x=180 x=12 | CFE = 11x12=132 | BCF = 4x12=48

Answer:

12 because imagine 40 / 3  ok?   now what makes 160 40 x 4    so you do that for the button 4 x 3 please put heart

Answer:

3

Step-by-step explanation:

it's D 13 divided by 6

Answer:

12/25

Step-by-step explanation:

1/2 = 25/50

1) 3/5 = 30/50

2) 12/25 = 24/50  (closest to 25/50)

3) 27/50

Step-by-step explanation:

Let x and y denote the cost of one hot dog and the cost of one hamburger.

ATQ,

Five hot dog(s) and four hamburger(s) cost $16.75 and four hot dog(s) and five hamburger(s) cost $17.00

So,

5x+4y = 16.75 ....(1)

4x + 5y = 17 ....(2)

Multiply equation (1) by 4 and equation (2) by 5.

20x+16y = 67 ....(3)

20x+25y= 85 ....(4)

Subtract equation (3) and (4).

20x+16y-(20x+25y) = 67-85

16y-25y = -18

-9y = -18

y = 2

Put the value of y in equation (2).

4x + 10 = 17

4x = 7

x = 1.75

So, the cost of one hot dog is $1.75 and that of cost of one hamburger is $2.

Answer:

[tex] \frac{Sin(80)}{RS} = \frac{Sin(52.5)}{7} [/tex]

Step-by-step explanation:

Given:

S = 52.5°

s = QR = 7

Q = 80°

q = RS = ?

Required:

Equation that could be used to find the length of RS

Solution:

We would need the law of Sines which is given as:

[tex] \frac{Sin(A)}{a} = \frac{Sin(B)}{b} = \frac{Sin(C)}{c} [/tex]

Applying the Law of Sines, we would have the following equation:

[tex] \frac{Sin(Q)}{q} = \frac{Sin(S)}{s} [/tex]

Plug in the values

[tex] \frac{Sin(80)}{RS} = \frac{Sin(52.5)}{7} [/tex]

Therefore, the equation that can be used to determine the length of RS is [tex] \frac{Sin(80)}{RS} = \frac{Sin(52.5)}{7} [/tex]

Answer: 2

Step-by-step explanation:

2+2+1+3=8/4=2