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2 years ago

22/9 divided by 8, please hurry test is timed!

Mathematics

2 answers:

zheka24 [161]2 years ago

6 0

Answer: Hello, it equals 0.30555555555

Step-by-step explanation: demical from 0.305 eacxt from is 11/36 witch one do u have?

OverLord2011 [107]2 years ago

3 0

Answer:

0.30(5)

the 5 is repeating

Step-by-step explanation:

calculator

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If £25 = 750 rubles, how many £ are in 780 rubles?

-Dominant- [34]

Answer:

Step-by-step explanation:

25/750=0.033333

0.033333x780=26

8 0

3 years ago

Sum of positive roots of the equation (x2 - 12x + 35) (x2 + 10x + 24) = 504 is

Digiron [165]

Answer:

(3)11

Step-by-step explanation:

We are given that

$(x^2-12x+35)(x^2+10x+24)=504$

We have to find the sum of positive roots of the equation.

$x^2(x^2+10x+24)-12x(x^2+10x+24)+35(x^2+10x+24)=504$

$x^4+10x^3+24x^2-12x^3-120x^2-288x+35x^2+350x+840=504$

$x^4-2x^3-61x^2+62x+840-504=0$

$x^4-2x^3-61x^2+62x+336=0$

Factor of 336

2,3,4,6,8,7,

Let x=2

$2^4-2^4-61(2^2)+62(2)+336\neq0$

x=2 is not the root of equation

x=-2

$(-2)^4-2(-2)^3-61(-2)^2+62(-2)+336=0$

Hence x=-2 is the root of equation.

x+2 is a factor of equation.

x=3

$3^4-2(3^3)-61(3^2)+62(3)+336=0$

Therefore, x=3 is the root of equation.

$(x+2)(x-3)(x^2-x-56)=0$

$(x+2)(x-3)(x^2-8x+7x-56)=0$

$(x+2)(x-3)(x(x-8)+7(x-8))=0$

$(x+2)(x-3)(x-8)(x+7)=0$

$x-8=0\implies x=8$

$x+7=0\implies x=-7$

Positive roots are 3 and 8

Sum of positive roots=3+8=11

Option (3) is true.

4 0

3 years ago

What are the answers ?

Oksanka [162]

Answer:

no idea

Step-by-step explanation:

i think it just rubbish

4 0

2 years ago

Plz help?!!? it's due by 11

Jobisdone [24]

Step-by-step explanation:

1. x^2 + 10x + 25

2. x^2 - 25

.........

7 0

2 years ago

Read 2 more answers

Can someone help me out my grade are bad

ArbitrLikvidat [17]

Answer:

i think you plot point -13

Step-by-step explanation:

let me know if this is incorrect

4 0

2 years ago