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EastWind [94]
3 years ago
15

I need a answer pls

Mathematics
1 answer:
atroni [7]3 years ago
3 0
The answer is 36. You subtract 6 each time. You multiply 6 by 45 and that equals
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Pressure head of 120 inches of water produces _______ psi of pressure
Gennadij [26K]
4.335275019289474 this is water column by the way.
8 0
2 years ago
Find the quotient (a) x^n-1 ÷ x-1 for n = 2, 3, 4, and 8 (b) What patterns do you notice? (c) Use your work in part (a) to write
musickatia [10]

Answer:

(a)  \frac{x^{2} -1}{x-1} =1+x

\frac{x^{3} -1}{x-1} =1+x+x^{2}

\frac{x^{4}-1 }{x-1} =x^{3}+x^{2}  +x+1

\frac{x^{8}-1 }{x-1} =x^{7}+x^{6}+x^{5}+x^{4}+x^{3}+x^{2}+1

(b) when we divide (x^{n} -1) with (x-+1) then the quotient will be a polynomial of x with (n-1) degree and all the coefficients are 1.

(c) [1+x^{2} +x^{3}+x^{4}+x^{5}+.....+x^{n-2} +x^{n-1} ]

Step-by-step explanation:

(a) We have, \frac{x^{2} -1}{x-1} =\frac{(x-1)(x+1)}{x-1} =1+x (Answer)

and, \frac{x^{3} -1}{x-1} =\frac{(x-1)(x^{2}+x+1) }{x-1}=1+x+x^{2} (Answer)

and, \frac{x^{4}-1 }{x-1} =\frac{(x-1)(x+1)(x^{2}+1) }{x-1}=(x+1)(x^{2}  +1) =x^{3}+x^{2}  +x+1 (Answer)

and, \frac{x^{8}-1 }{x-1} = \frac{(x-1)(x+1)(x^{2}+1)(x^{4} +1) }{x-1} =(x+1)(x^{2}+1)(x^{4} +1) =x^{7}+x^{6}+x^{5}+x^{4}+x^{3}+x^{2}+1 (Answer)

(b) From the above four quotients it is clear that when we divide (x^{n} -1) with (x-+1) then the quotient will be a polynomial of x with (n-1) degree and all the coefficients are 1. (Answer)

(c) Hence, from the above pattern of the quotients we can write the expression which is equivalent to \frac{x^{n}-1 }{x-1} will be

[1+x^{2} +x^{3}+x^{4}+x^{5}+.....+x^{n-2} +x^{n-1} ] (Answer)

4 0
2 years ago
The circumference of a circle is 127 cm. What is the area,
bogdanovich [222]
A≈ 1283.51
I hope this will help u
6 0
3 years ago
If 39% of the sample population voted for Addair, how many of the 20,000 voters voted for Addair?
fomenos
The answer is B

Multiple 20000 by .39
8 0
2 years ago
An art class has 33 students. The ratio of boys to girls is 5:6. How many girls are in this
lesya692 [45]

Answer:

boys = 15

girls = 18

---

Step-by-step explanation:

g/b = 6/5

g = (6/5)b

g + b = 33

---

g + b = 33

(6/5)b + b = 33

(6/5)b + (5/5)b = 33

(11/5)b = 33

---

b = 33(5/11)

---

7 0
2 years ago
Read 2 more answers
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