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nalin [4]
3 years ago
5

Hey can you please help me posted picture of question :)

Mathematics
1 answer:
IRINA_888 [86]3 years ago
4 0
If you observe carefully, you can see that the graph is crossing x-axis at the points 1 and 9. This means x = 1 and x = 9 are the roots of the polynomials and x - 1 and x - 9 are thus the factors of the polynomial.

We can express the polynomial as the product of its factors. So the above polynomial can be expressed as (x - 1)(x - 9)

Thus, the answer to the question is option D
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Sara threw her math book off a building . The height of the book, seconds after being thrownis modeled by the equation below. Th
Vikentia [17]

Answer: 70 ft

Step-by-step explanation:

Given

height of book is measured by the function is

h(x)=-5(x+2)(x-7)

when the book is thrown x=0

\therefore h(x=0)=-5(0+2)(0-7)\\\Rightarrow h(x=0)=70\ ft

The height of the book is 70\ ft

4 0
3 years ago
Find all zeros x^3+2x^2+4x+21
dlinn [17]

Answer:

see explanation

Step-by-step explanation:

note when x = - 3

(- 3)³ + 2(- 3)² + 4(- 3) + 21 = - 27 + 18 - 12 + 21 = 0

hence x = - 3 is a zero and (x + 3) is a factor and dividing gives

\frac{x^3+2x^2+4x+21}{x+3} = (x + 3)(x² - x + 7)

For zeros equate to zero

(x + 3)(x² - x + 7) = 0

equate each factor to zero and solve for x

x + 3 = 0 ⇒ x = - 3

x² - x + 7 = 0 ← solve using quadratic formula

x = (1 ± \sqrt{1-28} ) / 2 = (1 ± 3i\sqrt{3} ) / 2

x = \frac{1}{2} ± \frac{3i\sqrt{3} }{2}

zeros are x = - 3, x = \frac{1}{2} ±\frac{3i\sqrt{3} }{2}


5 0
3 years ago
11) The function: f(x)= x^2 – 2x + 3 belongs to<br> which family of functions?
Dmitrij [34]

Answer:

i believe a quadratic function

Step-by-step explanation:

quadratics are when an equation is x^2 so yeah (sorry if thats not what it's asking)

7 0
3 years ago
Which of these scales are equivalent to 3 cm to 4 km?
satela [25.4K]

Answer: The answer is A and D

3 0
3 years ago
Bryce ordered a set of beads. Of the beads he received, 17 were orange and 33 were a different color. What percentage of the bea
Arte-miy333 [17]

Answer:

id say around the 50 - 52 percent range

sorry if im wrong

brainly pls

3 0
3 years ago
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