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GalinKa [24]
3 years ago
5

Joe takes part in math competitions. A particular contest consists of 25 multiple-choice questions, and each question has 5 poss

ible answers. It awards 6 points for each correct answer, 1.5 points for each answer left blank, and 0 points for incorrect answers. Joe is sure of 12 of his answers. He ruled out 2 choices before guessing on 4 of the other questions and randomly guessed on the 9 remaining problems. What is his expected score?
69.2
75.6
90.8
97.2
Mathematics
2 answers:
motikmotik3 years ago
7 0
<h2>C. 90.8 </h2>

Is the correct answer.

Hope I helped!

Romashka-Z-Leto [24]3 years ago
5 0

your answer is C.


HOPE THIS HELPS!!

PLEASE MARK ME AS BRAINLIEST!!



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tamaranim1 [39]
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Which ofnthe following shows the correct use of distributive property when solving 1/3(33-x)=135,2
madam [21]

Answer: OPTION C.

Step-by-step explanation:

The missing options are:

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In order to solve this exercise you need to remember the following:

1. The Distributive property states that:

a(b+c)=ab+ac\\\\a(b-c)=ab-ac

2. The multiplication of signs:

(+)(+)=+\\(-)(-)=+\\(-)(+)=-\\(+)(-)=-

In this case the exercise gives you the following equation:

\frac{1}{3}(33-x)=135.2

Since you need to solve for the variable "x" in order to  find its value, the first  step you must apply in the in the procedure is to eliminate the parentheses applying the Distributive property.

Then, you must multiply everyting inside the parentheses by \frac{1}{3}.

Therefore,based on the explanation, you know that the correct use of the Distributive property is:

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8 0
3 years ago
On a 50-question test, a student answered 5 questions incorrectly. What percent did the student answer correctly? A. 45% B. 90%
nadya68 [22]
Hey there,

Pretend that 50 = 100

And that 5 = 10.

I did a 100 test unit test, and I got 10% wrong.

If you think about this, the answer would be 90%

So, it's the same in this case,

50 in half of 100

5 is half of 10.

So . . .

This would mean that your correct answer would be 90% because 5 in this case is to be considered to be 10.

Your correct answer is  . . . . 

\boxed{\boxed{90 \ would \ be \ your \ correct \ answer }}

Hope this helps
~Jurgen
7 0
3 years ago
Find the prime factorization of 75
VMariaS [17]
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7 0
3 years ago
Read 2 more answers
The expression (a^2 + b^2)^2 is equivalent to
Alexxandr [17]

Answer:

Step-by-step explanation:

(x + y)² = x² + 2xy + y²

(a² + b²)²  = (a²)² + 2*a²*b² + (b²)²      {x = a² ;  y = b²}

                = a⁴ +2a²b² + b⁴    

6 0
3 years ago
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