Answer: Should be -5
Step-by-step explanation:
Answer:
The product of the other two zeros is c
Step-by-step explanation:
Let α, β and γ be the zeros of the polynomial x³ + ax² + bx + c. Since one of the zeros is -1, therefore let γ = -1. Hence:
sum of the roots = α + β + γ = -a
-1 + β + γ = -a
β + γ = -a + 1
αβ + αγ + βγ = b
-1(β) + (-1)γ + βγ = b
-β -γ + βγ = b
Also, the product of the zeros is equal to -c, hence:
αβγ = -c
-1(βγ) = -c
βγ = c
Hence the product of the other two zeros is c
Given the radius of the discus used in the track field competition, the circumference of the discus is 69.08cm.
<h3>What is the circumference of the discus?</h3>
Note that; a circumference is the perimeter of a circle or ellipse.
It is expressed as C = 2πr
Where r is the radius and π is the constant pi ( π = 3.14 )
Given that;
- Radius of the discus r = 11cm
- Circumference C = ?
C = 2πr
C = 2 × 3.14 × 11cm
C = 69.08cm
Therefore, given the radius of the discus used in the track field competition, the circumference of the discus is 69.08cm.
Learn more about circumference and area circles here: brainly.com/question/11952845
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Answer:
<h2>
<em><u>Option</u></em><em><u> </u></em><em><u>B</u></em><em><u> </u></em><em><u>and</u></em><em><u> </u></em><em><u>D</u></em></h2>
Step-by-step explanation:
As,
![{64}^{ \frac{2}{3} } = {(\sqrt[3]{64})}^{2} = \sqrt[3]{ {64}^{2} }](https://tex.z-dn.net/?f=%20%7B64%7D%5E%7B%20%5Cfrac%7B2%7D%7B3%7D%20%7D%20%20%3D%20%20%7B%28%5Csqrt%5B3%5D%7B64%7D%29%7D%5E%7B2%7D%20%20%3D%20%20%5Csqrt%5B3%5D%7B%20%7B64%7D%5E%7B2%7D%20%7D%20%20)
Number of links = 100
Shape of each link = Circle
Radius = 2.5
Area = πr²
= 3.14×2.5×2.5
= 19.625
Now for 100 links
19.625×100
1962.5Cm²
Cost = 1962.5 × 0.06
= $117.75
Must click thanks and mark brainliest
