Simultaneous Linear Equations

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What is the gradient of the line shown in the graph above

1 point

-3/2

-2/3

2/3

3/2

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How many elements are there in the sample space when two cards are selected without replacement from cards labelled A, B, C, D, E, F, G ?

1 point

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A straight line has the equation of y = -x -3. What is the y-intercept

1 point

-3

-1

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The cost of manufacturing bags (C) is given by the formula C = 40x + 150, where x is the number of bags produced. What is the cost of manufacturing 2 bags?

1 point

$40

$150

$190

$230

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What is the point of intersection of the lines y = x + 2 and y = -x + 2

1 point

(2, 0)

(0, 2)

(0, -2)

(1, 1)

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A letter is chosen at random form the word WEDNESDAY. What is the probability that the letter will not be a vowel?

1 point

1/9

2/9

1/3

2/3

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The frequency of an event is 12 and the total number of times the experiment was conducted was 40. What is the relative frequency?

1 point

14%

26%

30%

70%

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Two unbiased coins are tossed 50 times. Which is the correct calculation for determining the expected number of times you would get a tail and a head?

1 point

1/4 x 50

1/2 x 50

1/3 x 50

1/4 x 100

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A card is selected at random from a normal pack of playing cards. The card is replaced each time. What is the expected number of times you would select an Ace from 260 trials.

1 point

Other:

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