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kati45 [8]
3 years ago
15

How many students answered exactly two questions incorrectly

Mathematics
1 answer:
Artyom0805 [142]3 years ago
7 0

Step-by-step explanation:

you didn't post the questions yk?!

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Point R is the midpoint of line segment XY. If XR=3n+1 and YR=16-2n, what is the length of line segment XY?
Kitty [74]
1) 3n+1=16-2n - add 2n to both sides - you should now be left with 5n+1=16 (remember the 2n gets canceled out) - subtract 1 from both sides - you should now be left with 5n=15 - now you divide by 5 to get n by itself - 15 divided by 5 is 3 - n=3 2) substitute n with 3 in to the original equation - so 3n+1=16-2n now becomes 3(5)+1=16-2(3) - you should get 10 for both so 10=10 3) according to the segment addition postualte , XR + YR = XY. - add 10+10 which stands for the lengths of XR and YR Answer - XY = 20
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4 years ago
If a polynomial cannot be written as the product of two other polynomials​ (excluding 1 and minus−​1), then the polynomial is sa
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In mathematics, a polynomial is an algebraic expression containing more than two terms. When the polynomial could not be reduced to a lower degree, it is classified as a prime polynomial. Just like whole numbers, a prime polynomial cannot be broken down into factors except 1 and by the number itself. Take for example, the polynomial x² + 5x + 6. It can be reduces to its factors x=-2 and -3. That would be expressed to x² + 5x + 6 = (x+2)(x+3). But if the polynomial is, say, x² + 5x + 7, there is no roots that are whole numbers. Therefore, it can't be reduced into factored groups because it is a prime polynomial.
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3 years ago
kylee has a coin and a number cube. she flips the coin once and rolls the number cube once. what is the probability that the coi
IceJOKER [234]

Answer:

flip the coin again

Step-by-step explanation:

cuz yes pp poopie

7 0
3 years ago
Help with number 8 please
pav-90 [236]

Answer:

the answer for this question is 1.5

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7nadin3 [17]

Answer:

w = -3/4 or -0.75

there is only one solution

Step-by-step explanation:

4 0
3 years ago
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