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3 years ago

Find the zeros of the following polynomial x^2-2x+1

Mathematics

2 answers:

Mashcka [7]3 years ago

5 0

It factors to (x - 1)(x - 1)

the zeroes are ix = 1. Duplicity 2.

muminat3 years ago

4 0

If the polynomial is of the form x^2+bx+c (ie., no factor in front of the x^2!!) then you can look for numbers that add up to b and multiply to c.

So in this case: what two numbers, when added, give -2 and when multiplied, give 1? A little trial and error gives you -1 and -1.
So the factorization is (x-1)(x-1). This is zero for x=1. There is only one zero.

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91 more than the square root of a number

Genrish500 [490]

Answer:

Step-by-step explanation:

y = x 2 + 91

Explanation:

Let the number be x

, then Square of the number is x ^2

91 more than the square of a number" will be x^ 2 + 91

So, we can write it as an algebraic expression with two variables as :

y = x ^2 + 91

3 0

3 years ago

Find the exact solution to the equation. Show your work plz

mina [271]

I am sending more pictures so you can see how I got the answer

7 0

3 years ago

Which value for x makes the sentence true? 567 + x = 1,257 a. 700 b. 1,924 c. 690 d. 1,824

Shalnov [3]

Given,

567 + x = 1257

=> x = 1257 - 567

=> x = 690

Option c is correct.

5 0

2 years ago

Read 2 more answers

How would I solve these problems?

oksian1 [2.3K]

You add the whole numbers together first and then you do the numerators then the denominators. Like for example, #2 would be 2 and then 4 on the top and 6 on the bottom since they share a common denominator! Hoped this helps.

3 0

3 years ago

A survey found that 50% of teenagers prefer to watch a movie at a theater over other viewing options. You want to know the estim

ella [17]

Answer:

1. Flip a fair coin four times, with heads representing teenagers who prefer watching a movie at a theater and tails representing those who do not.

2. Pick a card from a deck of standard playing cards four times, with red suits representing those who prefer watching a movie at a theater and black suits representing those who do not.

4. Roll a six-sided die four times, with even numbers representing those who prefer watching a movie at a theater and odd numbers representing those who do not.

Step-by-step explanation:

Basically you need to do something 4 times, with each time having a 50/50 chance.

For 1, it flips the coin 4 times and a coin toss is 50/50

For 2, it pics 4 cards, and the deck of cards has a 50-50 chance of either red or black

For 3, it spins it only 3 times, so is wrong

For 4, it rolls the die 4 times, and even and odd is 50-50

For 5, 0-5 consist of 6 number, while 6-9 is only 4 numbers thus is not 50-50 so is wrong

6 0

3 years ago