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dimaraw [331]
3 years ago
10

(√7)5=7n, what is n?

Mathematics
2 answers:
Burka [1]3 years ago
6 0

(√7)5 = 7n

Divide both sides by n.

(√7)5/7 = n

iren [92.7K]3 years ago
5 0

Answer:

n = 5/√7

Step-by-step explanation:

(√7) 5 = 7n

5√7 = 7n

7n = 5√7

n = 5√7/7

n = 5/√7

-<u>TheUnknownScientist</u>

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Write a polynomial function in factored form with double roots at -2 and 5 and the constant term of the polynomial in standard f
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Answer:

f(x)=-0.4x^4+2.4x^3+8.4x^2-24x-40

Step-by-step explanation:

If -2 and 5 are double roots of the polynomial function, then the function expression is

f(x)=a(x-(-2))^2(x-5)^2\\ \\f(x)=a(x+2)^2(x-5)^2

Rewrite this function in standard form:

f(x)=a(x^2+4x+4)(x^2-10x+25)\\ \\f(x)=a(x^4-10x^3+15x^2+4x^3-40x^2+100x+4x^2-40x+100)\\ \\f(x)=a(x^4-6x^3-21x^2+60x+100)\\ \\f(x)=ax^4-6ax^3-21ax^2+60ax+100a

The constant term of the polynomial in standard form is -40, so

100a=-40\\ \\a=-\dfrac{40}{100}=-0.4

Therefore, the function expression is

f(x)=-0.4x^4-6\cdot (-0.4)x^3-21\cdot (-0.4)x^2+60\cdot (-0.4)x+100\cdot (-0.4)\\ \\f(x)=-0.4x^4+2.4x^3+8.4x^2-24x-40

7 0
4 years ago
What is an equation of the line that passes through the points (-4, -1) and (2, 8)?
aev [14]

Answer:

Gggyu

Step-by-step explanation:

Hbyuk

6 0
3 years ago
What is 6800/5788 please hurry
trasher [3.6K]
1.7484450 is the answer
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3 years ago
Read 2 more answers
Can someone pls help me solved this problem plz! I really need help plz someone help me solved it! I need help ASAP!
kati45 [8]

Answer:

a) 0

b) 4.5

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Step-by-step explanation:

Formula: 3x + 4y = 12

The questions contains the values of x. So here's an example of:

d) x = -4, y = ?

   Using the formula:   3(-4) + 4y = 12

                                     -12 + 4y = 12

                                      4y = 24

                                       y = 6

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3 years ago
An underwater earthquake produces a tsunami 1,500 km away from Hawaii. If the tsunami travels at 600 km/h, how long will it take
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