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Lunna [17]
3 years ago
8

In a test containing 10 questions, (+5) marks are awarded for every correct answer, (-1) mark for every incorrect answer and 0 f

or not attempting the questions. If Rashid gets 4 correct answers and 6 incorrect answers, what is his score?
Mathematics
1 answer:
natka813 [3]3 years ago
6 0

Answer:

14

Step-by-step explanation:

10 questions = 4 correct + 6 incorrect

4 correct = 4* 5 = 20

6 incorrect = 6* (-1) = -6

His score is 20 -6 = 14 points

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-8xc = 1 solve for x
Nastasia [14]

Answer:

[-8c]⁻¹ = x

Step-by-step explanation:

-8xc = 1

____ ___

-8c -8c

x =   - \frac{1}{8c}  \\  \\ or \\  \\ x = ({ -8c})^{-1}

This, according to the Negative Exponential Rule [Reverse], is how you write this as a rational exponent. You bring the denominator to the numerator while ALTERING THE INTEGER SYMBOL FROM POSITIVE TO NEGATIVE:

b⁻ⁿ = 1\bⁿ

I am joyous to assist you anytime.

3 0
3 years ago
Find the value of x to the nearest tenth.
vladimir1956 [14]

Answer:

The answer to your question is  x = 14.7  

Step-by-step explanation:

Data

∠A = 20°

∠B = 46

a = 7

b = x

Process

To solve this problem use, the law of sines. This law states that the ratio of a side of a triangle to the sine of the opposite angle is the same for all three sides.

The law of sines for this problem is

                   x / sin 46 = 7 / sin 20

-Solve for x

                          x = 7 sin 46 / sin 20

-Simplification

                          x = 7 (0.719) / 0.342

                          x = 5.035/0.342

-Result

                         x = 14.7  

6 0
3 years ago
A teacher announce that from the 35 students in the class, 28 passed the first quiz,30 passed the second quiz, and 25 passed bot
Law Incorporation [45]

Answer:

5 students

Step-by-step explanation:

.............,

5 0
3 years ago
Quadrilateral LMNO is a rectangle. Find MN.
Cloud [144]
(4x-1)=(5x-8)
x=7

4(7)-1= 27

5(7)-8= 27

So the answer is 27

<span>MN = 27</span>

3 0
3 years ago
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You ride your skateboard to school and tell all your friends you rode at a speed of 25 mph. They know this cannot he true becaus
andrew-mc [135]
<span>The distance between your house and school and how long it took you to get there</span>
7 0
3 years ago
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