3 years ago

(9\times100)+(8\times10)+\left (7\times\dfrac{1}{1000} \right )(9×100)+(8×10)+(7×

Mathematics

1 answer:

Tanya [424]3 years ago

3 0

Answer:

7,980

Step-by-step explanation:

900 + 80 + (7 x 1000)

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pentagon [3]

Answer:

A. add 81; $(x-9)^2$

Step-by-step explanation:

The perfect square formula

$(a-b)^2=a^2-2ab+b^2$

Rewrite expression $x^2-18x$ as follows:

$x^2-2\cdot 9\cdot x$

So, to form a perfect square, $+9^2$ is missed.

When we add $9^2=81,$ we will get

$x^2-2\cdot 9\cdot x+9^2=(x-9)^2$

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Answer:

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kolezko [41]

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3 years ago

A photocopier can make 20 copies per minute. which equation can be used to find m, the number of minutes the copier takes to mak

Alex777 [14]

Answer:

It's Option'A' i.e 20m=75

Step-by-step explanation:

or,m=75/20

or,m=3.75

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omeli [17]

Answer:

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Step-by-step explanation:

there you go bud

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