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2 years ago

After a shipwreck, Sam is stranded on a desert island. He needs to build a shelter, so he

Mathematics

1 answer:

Llana [10]2 years ago

7 0

Answer:

There kind of needs to be more information. We don't have any other information other than the backstory. You're gonna need to elaborate.

Step-by-step explanation:

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State the requirements that must be satisfied to use the one-way ANOVA procedure. Select all that apply. A. The k samples must

Sergeu [11.5K]

Answer:

The correct option are: (A), (B), (C) and (E).

Step-by-step explanation:

The One-Way ANOVA is a statistical test used to compare the three or more population means.

The hypothesis is:

H₀: The population means are equal, i.e. μ₁ = μ₂ = μ₃ =...= μₙ

Hₐ: At least one of the population mean differ.

The Assumptions of One-way ANOVA are:

The samples selected from each population are independent of each other.
The population distribution of the dependent variables follow Normal distribution.
The population variances are always equal for all the groups.

Thus, the correct option are: (A), (B), (C) and (E).

3 0

2 years ago

If X²⁰¹³ + 1/X²⁰¹³ = 2, then find the value of X²⁰²² + 1/X²⁰²² = ?

enyata [817]

Step-by-step explanation:

$\bf➤ \underline{Given-} \\$

$\sf{x^{2013} + \frac{1}{x^{2013}} = 2}\\$

$\bf➤ \underline{To\: find-} \\$

$\sf {the\: value \: of \: x^{2022} + \frac{1}{x^{2022}}= ?}\\$

$\bf ➤\underline{Solution-} \\$

Let us assume that:

$\rm: \longmapsto u = {x}^{2013}$

Therefore, the equation becomes:

$\rm: \longmapsto u + \dfrac{1}{u} = 2$

$\rm: \longmapsto \dfrac{ {u}^{2} + 1}{u} = 2$

$\rm: \longmapsto{u}^{2} + 1 = 2u$

$\rm: \longmapsto{u}^{2} - 2u + 1 =0$

$\rm: \longmapsto {(u - 1)}^{2} =0$

$\rm: \longmapsto u = 1$

Now substitute the value of u. We get:

$\rm: \longmapsto {x}^{2013} = 1$

$\rm: \longmapsto x = 1$

Therefore:

$\rm: \longmapsto {x}^{2022} + \dfrac{1}{ {x}^{2022} } = 1 + 1$

$\rm: \longmapsto {x}^{2022} + \dfrac{1}{ {x}^{2022} } = 2$

★ Which is our required answer.

$\textsf{\large{\underline{More To Know}:}}$

(a + b)² = a² + 2ab + b²

(a - b)² = a² - 2ab + b²

a² - b² = (a + b)(a - b)

(a + b)³ = a³ + 3ab(a + b) + b³

(a - b)³ = a³ - 3ab(a - b) - b³

a³ + b³ = (a + b)(a² - ab + b²)

a³ - b³ = (a - b)(a² + ab + b²)

(x + a)(x + b) = x² + (a + b)x + ab

(x + a)(x - b) = x² + (a - b)x - ab

(x - a)(x + b) = x² - (a - b)x - ab

(x - a)(x - b) = x² - (a + b)x + ab

6 0

2 years ago

Helppppppppppppppppppppppp

Vitek1552 [10]

Answer:

yes, it is a right angle triangle

Step-by-step explanation:

If it is a right angle triangle, then sq(14) + sq48) = 2500 = sq(50)

5 0

2 years ago

PLEASE HELP!!!!!!Chef Alfredo wants to offer some specials in the Sunday edition of the Pepperville Press. What is the discounte

Degger [83]

Answer: The discounted price is $14.72 for the two medium cheese pizzas.

17.95 × 0.18 (18%) = 3.231

17.95 - 3.231 = 14.719

3 0

2 years ago

An eagle is flying around and its velocity vvvv as a function of time tttt is given in the graph below where rightwards is the p

mojhsa [17]

9514 1404 393

Answer:

8 units

Step-by-step explanation:

Displacement is the area under the velocity curve. The area of interest is in the shape of a trapezoid, so we can use the formula ...

A = (1/2)(b1 +b2)h

to find the area.

Here, b1=3, b2=1, h=4, so the area is ...

A = (1/2)(3 +1)(4) = 8

The displacement is 8 units in the time from t=1 to t=4.

7 0

3 years ago