All categories

3 years ago

Which two values of x are roots of the polynomial below x^2-11x+17

Mathematics

1 answer:

svetlana [45]3 years ago

3 0

<u>Answer</u>

9.14 and 1.86

<u>Explanation</u>

x²-11x+17

The first thing is to equate it to zero.

x²-11x+17 = 0

x²-11x = -17

x² - 11x + (11/2)² = -17 + (11/2)²

(x² - 11/2)² = -17 + 121/4

(x - 11/2)² = 13.25

x -11/2 = √13.25 or x - 11/2 = -√13.25

x = √13.25 + 11/2 x = -√13.25 + 11/2

= 3.64 + 5.5 = -3.64 + 5.5

= 9.14 = 1.86

You might be interested in

WILL MARK BRAINLIEST Suppose MyBook has roughly 1,000,000 users, and as each member signs up for an account, he or she is assign

irinina [24]

Answer:

Surveying every 25,000th number

6 0

2 years ago

Read 2 more answers

Identify a1 r and n for the sum of the geometric sequence. 1/2 + 3/8 + 9/32 + 27/128 + 81/512

Bess [88]

Answer:

a1=1/2

r=3/4

n=5

Step-by-step explanation:

a1 is the first term in the geometric series

a1=1/2

r is the common ratio of the first and second term

r=(3/8)/(1/2)

r=3/4

where n is the no of the term in the geometric series

In algebra, the polynomial remainder theorem or little Bézout's theorem is an application of Euclidean division of polynomials. It expresses that the rest of the division of a polynomial by a direct polynomial is equivalent to. Specifically, is a divisor of if and just if a property known as the factor hypothesis.

The number multiplied at each stage of a geometric sequence is called its common ratio.

4 0

2 years ago

Read 2 more answers

the admission fee for a charity event is 7 dollars for children and 10 dollars for adults the event was attended by 700 people a

ollegr [7]

Given:
$7/child
$10/adult
Total people = 700
Total money = $6,400

First, make two equations.
Let a = # of adults & Let c = # of children.
Let p = total people

1. a+c = 700
2. 10a+7c = 6,400

Then, rearrange the equation to solve for a variable.
c = 700-a

Substitute (700-a) for c, or the # of children in the second equation.
10a+(700-a) = 6400
9a+700 = 6400
9a+700-700 = 6400-700
9a = 5700
9a/9 = 5700/9
a = 633 $\frac{1}{3}$ = # of adults attended

700-633 $\frac{1}{3}$ = c = 66 $\frac{2}{3}$ = # of children attended

4 0

2 years ago

What is the diameter of a circle with a radius of 7 inches

In-s [12.5K]

Answer:

Step-by-step explanation:

the diameter is the radius multiplied by 2

7 0

2 years ago

A survey of a random sample of voters shows that 29% plan to vote for Martin and 71% plan to vote for

Iteru [2.4K]

Range=±7%

Martin=71%, Lang=29%

Range for Martin=71%±7%

So, highest %=71%+7%=78%

Lowest %=71%-7%=64%

Therefore,range for Martin is between 64%-78% which is 14%

3 0

3 years ago