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2 years ago

6

A safety regulation states that the height hh of a guardrail should be 106 centimeters with an absolute deviation of no more tha

n 7 centimeters. Write and solve an absolute value inequality that represents the acceptable heights of a guardrail. What is the absolute value inequality?

1 answer:

AlexFokin [52]2 years ago

6 0

Well 106 divided by 7 is 15 so 15 times 7 is 106

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A sample of 100 people is classified by gender (male/female) and by whether they are registered voters. The sample consists of 8

uysha [10]

Answer:

12

Step-by-step explanation:

Given :

Male Female Total

Registered 60

Non registered 40

Total 20 80

Solution :

N= 100

Formula of expected frequency = $E_{ij}=\frac{T_i \times T_j}{N}$

$E_{ij}$ = expected frequency for the ith row/jth columm.

$T_i$ = total in the ith row

$T_j$ = total in the jth column

N = table grand total.

So, using formula $E_{11}=\frac{T_1 \times T_1}{100}$

$E_{11}=\frac{60 \times 20}{100}$

$E_{11}=12$

$E_{12}=\frac{T_1 \times T_2}{100}$

$E_{12}=\frac{60 \times 80}{100}$

$E_{12}=48$

$E_{21}=\frac{T_2 \times T_1}{100}$

$E_{21}=\frac{40 \times 20}{100}$

$E_{21}=8$

$E_{22}=\frac{T_2 \times T_2}{100}$

$E_{22]=\frac{80 \times 40}{100}$

$E_{22}=32$

Expected frequency table

Male Female Total

Registered 12 48 60

Non registered 8 32 40

Total 20 80

So, the expected frequency for males who are registered voters are $E_{11}=12$

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3 years ago

Standard form of y+2=1/2(x-4)

gogolik [260]

$y + 2 = \frac{1}{2} (x - 4) \\ 2y + 4 = x - 4 \\ - x + 2y = - 8$

6 0

3 years ago

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How do you solve this math problem-2(x+3y)=18

ss7ja [257]

Greetings!

Solve for <em>x</em>.
$-2(x+3y)=18$
Distribute the Parenthesis. <em>How?</em> Multiply all of the terms inside the parenthesis by the number outside the parenthesis.
$(-2)*x+(-2)*3y=18$
$-2x-6y=18$
Add 6y to both sides.
$(-2x-6y)+6y=(18)+6y$
$-2x=18+6y$
Divide both sides by -2.
$(-2x)/-2=(18+6y)/-2$
The Answer Is:
$x=-9-3y$
$x=-3y-9$

Hope this helps.
-Benjamin

7 0

3 years ago

Which intervals show f(x) increasing? choose two options

vivado [14]

Answer:

(-1.6, 0)

(0, 0.8)

Step-by-step explanation:

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3 years ago

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Please help me do this i’ll give brainlist and points

lorasvet [3.4K]

To make enough brew for 4 people you would need:

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2 years ago