What is the estimate of 92 times 68

Mathematics

2 answers:

solong [7]3 years ago

8 0

92 can be rounded to 90
68 can be rounded to 70

90 x 70 = 6300

insens350 [35]3 years ago

3 0

92 rounded to 90
68 rounded to 70
90(70) is 9*7*100
63*100
6300

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Step-by-step explanation:

$\dfrac{x^2}{4}-\dfrac{y^2}{4}=\dfrac{x^2}{2^2}-\dfrac{y^2}{2^2}\qquad\text{use}\ \left(\dfrac{a}{b}\right)^n=\dfrac{a^n}{b^n}\\\\=\left(\dfrac{x}{2}\right)^2-\left(\dfrac{y}{2}\right)^2\qquad\text{use}\ (a-b)(a+b)=a^2-b^2\\\\=\left(\dfrac{x}{2}-\dfrac{y}{2}\right)\left(\dfrac{x}{2}+\dfrac{y}{2}\right)=\dfrac{x-y}{2}\cdot\dfrac{x+y}{2}$

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ivolga24 [154]

Answer:

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Step-by-step explanation:

We can make a probability tree as the attached picture.

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