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3 years ago

9

I am thinking of a number. I subtract 10 then divide by 2 and I now have 19. What was my original number? (Hint: Start with the

number at the end, 19, and work in "reverse". In other words, 19 × 2 + 10.)

2 answers:

saw5 [17]3 years ago

5 0

48 because that's what you get following your equation in PEMDAS order :)

erma4kov [3.2K]3 years ago

5 0

48 is the answer bacause 38 plus 10

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Step-by-step explanation:

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3 years ago

Which binomial is a factor of 49x2 + 84 xy + 36y2?

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Answer:

(7x+6y) is a binomial factor of the given expression $49x^2+84xy+36y^2$

Therefore $49x^2+84xy+36y^2=(7x+6y)(7x+6y)$

Step-by-step explanation:

Given expression is $49x^2+84xy+36y^2$

To find the binomial factor :

$49x^2+84xy+36y^2$

Rewritting the above expression as

$=7^2x^2+2(7)(6)xy+6^2y^2$

$=(7x)^2+2(7x)(6y)+(6y)^2$

$=(7x+6y)^2$ ( using the formula $=(a+b)^2=a^2+2ab+b^2$ here a=7x and y=6y )

$=(7x+6y)(7x+6y)$ ( using the formula $=(a+b)^2=(a+b)(a+b)$ )

Therefore $49x^2+84xy+36y^2=(7x+6y)(7x+6y)$

(7x+6y) is a binomial factor of the given expression $49x^2+84xy+36y^2$

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3 years ago

Ill give brainliest, please

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1st One goes to the third one

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