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Allisa [31]
3 years ago
15

Please help 25POINTS pls need ASAP

Mathematics
1 answer:
Travka [436]3 years ago
6 0

Answer:

The answer is - x² - 12x + 9

Step-by-step explanation:

1. Using (a-b)²= a²-2ab+b², expand the expression

2. Collect the like terms.

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Tom, Michael and Jane visit the same sport club. Tom visits the club every 5th day, Michael every 6th day and Jane every 8th day
Sedaia [141]

Answer: December 3rd.

Step-by-step explanation:

To solve this question, we have to calculate the multiples of 5, 6 and 8 and then choose the lowest common multiple. After then, we add the number chosen to the date earlier given to derive our answer.

For Tom:

Multiples of 5: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100, 105, 110, 115, 120

For Michael:

Multiples of 6: 6, 12, 18, 24, 30, 36, 42, 48, 54, 60, 66, 72, 78, 84, 90, 96, 102, 108, 114, 120.

For Jane:

Multiples of 8: 8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 88, 96, 104, 112, 120.

L. C. M = 120

It should be noted that when we use the calendar or calculate the number of days we have, August 5 will be 217 days.

The next day when the three of them will be at the sports club will be:

= August 5 + 120

= 217 days + 120 days

= 337 days

The 337th day will be December 3rd.

7 0
3 years ago
Given these scores: 31, 32, 32, 33, 34, 35, 35, 35, 35 What number is the median? What number is the mode?
irinina [24]
For this case we have the following data:
 31, 32, 32, 33, 34, 35, 35, 35, 35
 The median is given by the central datum:
 Median = 34
 Mode is given by the most repeated data:
 Mode = 35
 Answer:
 
Median = 34
 Mode
 = 35
5 0
4 years ago
Read 2 more answers
2.5 kg of potatoes is £1.40<br> What is the cost of 4.25
Kobotan [32]
2.18


Mark brainliest please


Hope this helps
5 0
2 years ago
N=4; 2i and 3i are zeros <br> f(-1)=50
Nonamiya [84]

Solution:- \text{Let f(x) be any nth degree polynomial with n=4}\\

\text{Given that 2i and 3i are the zeroes of f(x)}

\text{so (x-2i) and (x-3i) are factors of f(x)}

\text{Since 2i is a zero of f(x) then its conjugate -2i is also a zero of f(x)}

\Rightarrow(x+2i) \text{is a factor}\\\text{Similarly, conjugate of 3i is -3i is also a zero of f(x) }\\\Rightarrow(x+3i)\text{is a factor}\\\text{So , }\\f(x)=k(x-2i)(x+2i)(x-3i)(x+3i)\\=k(x^2-(2i)^2)(x^2-(3i)^2)\\=k(x^2-4i^2)(x^2-9i^2)\\=k(x^2+4)(x^2+9)\\=k(x^4+13x^2+36)\\\text{As given}\\f(-1)=50\\\Rightarrow k((-1)^4+13(-1)^2+36)=50\\\Rightarrow k(1+13+36)=50\\\Rightarrow k(50)=50\\\Rightarrow k=1\\\text{So by substituting k=1 in f(x) we get ,}\\f(x)=(x^4+13x^2+36)

6 0
3 years ago
How do I remove the 1 on the numerator when solving for x <br>1/x = 5 <br>​
m_a_m_a [10]

Answer:

x = \frac{1}{5}

Step-by-step explanation:

\frac{1}{x} = 5 ( multiply both sides by x to clear the fraction )

1 = 5x ( divide both sides by 5 )

\frac{1}{5} = x

4 0
3 years ago
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