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Vladimir79 [104]
3 years ago
5

Question Progress

Mathematics
1 answer:
Alik [6]3 years ago
4 0

Answer:

60 ; - 40 ; 22 ; - 11

Step-by-step explanation:

Given that:

Number of questions = 20

Rules :

Every correct answer scores 3 points.

Each incorrect answer loses 2 points.

A question not answered scores 0 points.

It is possible to finish the quiz with a negative score.

a)

Maximum score : answering all questions correctly :

(3 points * 20 questions)

= 3 * 20

= 60 points

b)

Minimum score is obtainable by answering all questions incorrectly ;

(-2 points * 20)

= - 40 points

c)

10 correct answers = (3 * 10) = 30 points

(14 - 10) = 4 incorrect answers = (-2 * 4) = - 8 points

Net total = 30 + (-8) = 30 - 8 = 22 points

d) Another student answers 18 questions,

5 are correct. How many points does she score?

5 correct answers = (5 * 3) = 15 points

(18 - 5) incorrect answers = (13 * - 2) = - 26 points

Net total = 15 + (-26) = - 11 points

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tresset_1 [31]

P=s1+s2+s3

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p-s1=s2+s3

Move s2 to the other side. Sign changes from s2 to -s2

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p-s1-s2=s3

Answer: p-s1-s2=s3

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3 years ago
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Answer:

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Step-by-step explanation:

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Simplify the following without using a calculator<br>a)<br>- 4 x (8-(-3)) + 7​
bulgar [2K]
-4(8-(-3))+7

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3 0
3 years ago
Write a polynomial function f of least degree that has rational coefficients, a leading coefficient of 1, and the given zeros.
butalik [34]
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6 0
3 years ago
HELP PLS!!! find x and y please show steps
loris [4]

Answer:

<h3>            x = 7 ,   y = 7√2</h3>

Step-by-step explanation:

The sum of measures of angles in triangle is 180°

so:

180° - 90° - 45° = 45°

two angles angles of the same measure, that means: x = 7

so:

      7^2+7^2=y^2\\\\y^2=7^2\cdot2\\\\y=\sqrt{7^2\cdot2}\\\\\bold{y=7\sqrt2}

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3 years ago
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