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2 years ago

Please help! I will mark you as brainliest!

Mathematics

2 answers:

lisov135 [29]2 years ago

8 0

Answer:

7/9

Step-by-step explanation:

Think of 1 as being 9/9. The difference between 9/9 and 2/9 is 7/9, which is the answer

alekssr [168]2 years ago

6 0

7/9
You’re welcome

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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:

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

2 years ago

Find the slope of the line that contains the points named.

8090 [49]

Answer:

M= 0

Step-by-step explanation:

the ys are the same

6 0

2 years ago

A ball is released from a height of 180 meters. In the first second, the ball drops 5 meters, in the second 15 meters, in the 3r

sergejj [24]

Answer:

a. 4

Step-by-step explanation:

4 0

2 years ago

So if I buy something for $36.97 and the and buy something else for $9.48 what will be the Total all Together?

Paul [167]

Answer:

36.97+9.48

=$46.45

Step-by-step explanation:

hope it helps

5 0

2 years ago

Read 2 more answers

Find the length of CU, the triangles are similar.

Otrada [13]

Answer:

CU = 117

Step-by-step explanation:

Since the triangles are similar then the ratios of corresponding sides are equal, that is

$\frac{WC}{WU}$ = $\frac{CD}{UV}$

substituting in values to the ratios

$\frac{26}{36x-1}$ = $\frac{24}{132}$ ( cross- multiply )

24(36x - 1) = 3432 ( divide both sides by 24 )

36x - 1 = 143 ( add 1 to both sides )

36x = 144 ( divide both sides by 36 )

x = 4

CU = 36x - 1 - 26 = (36 × 4) - 27 = 144 - 27 = 117

3 0

3 years ago