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3 years ago

Whwat is 2 pwus 1 pweass hellpe itz vary hard

Mathematics

2 answers:

hichkok12 [17]3 years ago

8 0

Answer: 3

Step-by-step explanation: 2+1=3

frozen [14]3 years ago

8 0

Answer: 3

Step-by-step explanation: i have two cars and want another so first i see how much cars i have OHHH YEAH I HAVE TWO cars so i buy another one and so TWO PLUS ONE MORE IS THREE

kanzaki chan

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An online survey company wants to know if customer age is important in deciding to subscribe. The company has gathered a random

aleksley [76]

Answer:

service subscription and age are not independent

Step-by-step explanation:

The appropriate statistical test to adopt for the above problem is the Chisquare test.

The hypothesis :

H0 : service subscription and age are independent

H1 : service subscription and age are not independent

Observed values :

Under 18 18-34 35 and Over Total

Yes__ 120 __262 __237__ 619

No___ 41 ___103 __237 __381

Total 161 365 574 1000

χ² = (Observed - Expected)²/Expected

Expected Values:

99.659 __ 225.935 __ 293.406

61.341 ___ 139.065 __ 180.594

The Chisquare values :

4.15172__ 5.7569__ 10.8438

6.74518_ 9.35307 __ 17.6176

χ² = 4.15172 + 5.7569 + 10.8438 + 6.74518 + 9.35307 + 17.6176 = 54.46827

Degree of freedom = (row-1)*(column-1) = (2-1)*(3-1) = 1*2 = 2

Pvalue at df = 2 ; Pvalue = 0

α = 0.05

Pvalue < Α ; Hence, we reject H0 ; and conclude that service subscription and age are not independent

3 0

2 years ago

If f(x) = <img src="https://tex.z-dn.net/?f=%5Csqrt%7Bx%7D" id="TexFormula1" title="\sqrt{x}" alt="\sqrt{x}" align="absmiddle"

kogti [31]

Answer:

Step-by-step explanation:

Given are two functions f and g defined as

$f(x) =\sqrt{x} \\g(x) = x^3+8$

we have to find the composition of functions in all orders

1) $a)(fog)(x)=f{g(x)}=f(x^3+8) =\sqrt{x^3+8} \\\\(fog)(2) = =4,-4$

$b) (fof)(x) = f{f(x)}=f(\sqrt{x} {=\sqrt[4]{x} \\\\When x=25, ans= \sqrt{5}$

$c) (gof)(x) = g(\sqrt{x}) = (\sqrt{x})^3+3 = x^{\frac{3}{2} } +8\\\\d)(fog)(x)=f{g(x)}=f(x^3+8)$

8 0

2 years ago

Describe how you would use Distributive Property to simplify (39 x 5).

Brrunno [24]

You would do, "(30*5)+(9*5)" soo...they would be separated and it would be easier to solve

3 0

3 years ago

Help pls<br> Slope from graph

tresset_1 [31]

I’m pretty sure the slope is 7/4

8 0

2 years ago

Given that (0,3) is on the graph of f(x), find the corresponding point for the function f(x)-2

natima [27]

Answer:

(0 , 1)

Step-by-step explanation:

given y = f(x), then

y = f(x) + c is a vertical translation

• If c > 0 then vertical shift up of a units

• If c < 0 then vertical shift down of a units

here c = - 2, hence shift down of f(x) by 2 units

(0, 3) → (0, 3 - 2 ) = (0, 1)

4 0

3 years ago