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3 years ago

(BRAINLIEST) Choose 1 from the following Unit 8 sub-topics and expound: (need 5-6 sentences just on ONE of these topics)

Mathematics

1 answer:

Vladimir79 [104]3 years ago

4 0

Answer:n

Step-by-step explanation:

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The value of y varies directly with x, when y = 36, and x = 9. What is the equation for the relationship?

trapecia [35]

Answer:

4x = y

Step-by-step explanation:

If y is 36 and x is 9, you know 9 x 4 = 36. So it would be 4x = y

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3 years ago

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A 12 foot ladder is leaning against a wall the bottom of the latter is 5 feet away from the bottom of the wall approximately how

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Answer:

10.9 feet

Step-by-step explanation:

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3 years ago

ANSWER QUICK PLZ

musickatia [10]

A. 60(2/3) + 35(7/10) + 45(5/6) = $102.00

b. 60 + 35 + 45 = 140 = original price
140 - 102 = $30 saved

c. 102/140 = .7286 * 100 = 72.86 % (not sure how you need it rounded)

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3 years ago

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Natasha2012 [34]

There are a lot of dots but do I you have a question

I tried to count them but I kept losing track

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3 years ago

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:

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 $E_{11}=12$

5 0

3 years ago