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svetlana [45]
3 years ago
9

ASAP please help i’ll give brainliest

Mathematics
1 answer:
Sever21 [200]3 years ago
7 0

Answer: all of them!!

Step-by-step explanation: hope this helps :)

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A student ran out of time on a multiple choice exam and randomly guessed the answers for 2 problems. Each problem had 5 answer c
frozen [14]
So if there are 5 choices and only one is correct, there is a 1/5 chance of being correct. since there was 2 questions, you need to multiply 1/5 by 1/5 to get 2/25 of getting both questions correct.

i hope this helps!!
3 0
3 years ago
consider the equation is Y equals 1/square root of x and y=x-2. approximate solution of the system equations
emmasim [6.3K]

Answer:

x=1 and x=4

Step-by-step explanation:

We have the following system of equations:

y=\sqrt{x} and y=x-2

To solve the problem, we need to equal the two equations:

x-2=\sqrt{x} ⇒ (x-2)^{2} =x ⇒ x^{2} -4x + 4 = x  

⇒ x^{2} -5x + 4 = 0  

So you need to find two numbers that added equal to 5 and multiplied equal to 4. These two numbers are x=-1 and x=-4.

Then, the factorized form of the polynomial is: (x-1)(x-4).

The, the solution to the system of equations is: x=1 and x=4.

5 0
3 years ago
What is the coefficient of the term of degree 4 in this polynomial 4x^8+5x^4-2x^3+
eduard

5Answer:

Step-by-step explanation:

sorry if this is wrong

8 0
3 years ago
Salina's age is one-quarter the age of her aunt. If a represents her aunt's age, which expression represents Salina's
alukav5142 [94]

Answer:

D. A over 4

Step-by-step explanation:

One quarter is equal to \frac{1}{4}. If her aunt is age 'a', than Salina's age is a/4

Hope this helps.

4 0
3 years ago
Read 2 more answers
Solve using the elimination method! 2x + 8y = 4 x - 5y = 11
Lina20 [59]

Answer: The answer is {(0,0)} !

Step-by-step explanation:

4 0
3 years ago
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