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mestny [16]
2 years ago
14

A test has 40 questions. The test awards 2 points if the answer is correct and takes away 1 point if the answer is incorrect. A

student answered 5 questions incorrectly. And got 35 questions correct. What was his score?
$5
$12
$10
$60
Mathematics
2 answers:
Vladimir79 [104]2 years ago
8 0

Answer: 65...

Step-by-step explanation: (65 is not on there but..)

35x2= 70 (correct)

5x1= 5 (incorrect)

70-5= 65 (total)

-Dominant- [34]2 years ago
3 0
If he got 35 right you would do 35+35=70
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melamori03 [73]

Answer:

Z= 0.253

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Step-by-step explanation:

Formulate the null and alternative hypotheses as

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Here ∝= 0.005

For alpha by 2 for a two tailed test Z∝/2 = ± 1.96

Standard deviation = s= 15

n= 10

The test statistic used here is

Z = x- x`/ s/√n

Z= 2058- 2046 / 15 / √10

Z= 0.253

Since the calculated value of Z= 0.253 falls in the critical region we reject the null hypothesis.

There is  evidence at the 0.05 level that the doors are too short and unusable.

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AleksandrR [38]
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Answer:

The answer is A

Step-by-step explanation:

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Step-by-step explanation:

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