3 years ago

Expand. Your answer should be a polynomial in standard form. (x - 2) (x – 6) =

Mathematics

1 answer:

andrew-mc [135]3 years ago

3 0

Answer:

$x^{2} -8x+12$

Step-by-step explanation:

im pretty sure its this smack me if im wrong

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stiv31 [10]

Answer: She will have to work 9 hours

Step-by-step explanation:

$10+ $7 = 17 x 9 = 153

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2 years ago

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steposvetlana [31]

Step-by-step explanation:

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3 years ago

Factor 81x²-25. Remember there is no middle term. This is a sum and difference of 2 squares.

natulia [17]

Hey there!!

Basic formula :

... a² - b² = ( a + b ) ( a - b )

Equation given :

... 81x² - 25

... ( 9x )² - ( 5 )²

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3 years ago

Rich also has £400 pounds invest 3% compound interest . How many years does he need to invest the money to get at least £475

zepelin [54]

Answer: 6 years

Step-by-step explanation:

Formula to calculate compound amount: $A=P(1+r)^t$ , where P= Principal , r=rate of interest, t= time

Given: P = £400, r = 3% = 0.03 , A= 475

Required equation: $400(1+0.03)^t\geq475$

$400(1.03)^t\geq475\\\\\Rightarrow\ (1.03)^t\geq\dfrac{475}{400}\\\\\Rightarrow\ (1.03)^t\geq1.1875$

Taking log on both sides , we get

$t \log 1.03\geq\log1.1875\\\\\Rightarrow\ t(0.0128372)\geq(0.0746336)\\\\\Rightarrow\ t\geq\dfrac{0.0746336}{0.0128372}=5.81385\approx6$

Hence, he needs to invest the money for 6 years to get atleast £475.

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2 years ago

Given f(x) = 3x- 1 and g(x) = 2x-3, for which value of x does g(x) = 2)?

EastWind [94]

Answer:

Step-by-step explanation:

can i get that answer lol

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3 years ago