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3 years ago

Please help!!!!!!!!!!!!!!!!!

Mathematics

1 answer:

kobusy [5.1K]3 years ago

6 0

Answer:

Step-by-step explanation:

a) 5 & 3 are vertical angles

b) 5 & 4 are linear pair

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Georgetown passed an ordinance that requires a 5-cent water-bottle tax to be charged for every bottle of

professor190 [17]

Answer:

c,13

Step-by-step explanation:

Cause if you divide 65 by 5 you get 13. And to check it you can multiply 13 times 5 and you would still get 65. And can I get your g-mail

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3 years ago

8x^2 - 2x = 1 quadratic simplification

ziro4ka [17]

Answer:

x = -1/4 = -0.250

Step-by-step explanation:

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3 years ago

How many solutions does this<br>quadratic have?<br>f(x) = -4x2 + 12x - 9

BartSMP [9]

Answer:

one, (1.5, 0)

Step-by-step explanation:

4 0

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

PLS HELP ME ASAP FOR 17!! (MUST SHOW WORK!!/ STEPS!!) +LOTS OF POINTS!! *brainliest*

azamat

You must distribute first.
8 times (3x-2)= 24x-16
2 times (12x-5.5)= 24x-11
What you have left is
(24x-16)-(24x-11)
24x-24x=0
-16- -11=-5
The answer is -5

8 0

4 years ago