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3 years ago

12

Jada’s teacher ask her to write a three-digit number that uses the digit 4 once and the digit 7 twice. The value of one 7 needs

to be 1/10 the value of the other 7. What number can jada write?

1 answer:

viva [34]3 years ago

6 0

477

The value of the first 7 from the left is 70.

If you divide 70 by 10, you get the value of the second seven, 7.

Another way to know this is equivalent fractions:

1/10 = 7/10

10 X 7 = 70
1 X 7 = 7

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Let $f(x) = 2x^2 + 3x - 9,$ $g(x) = 5x + 11,$ and $h(x) = -3x^2 + 1.$ Find $f(x) - g(x) + h(x).$

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QUESTION 1

Given that:

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Then;

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QUESTION 2

Given that;

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and

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Substitute the functions;

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Let

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The range is:

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$y-1\ge0$

$y\ge1$

The interval notation is;

$[1,+\infty)$

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