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Andreas93 [3]
3 years ago
9

What is x squared minus 4x minus 45

Mathematics
1 answer:
Mazyrski [523]3 years ago
3 0

That's a second-degree expression in 'x'.  It represents a number,
but the number it represents completely depends on the value of 'x'. 
And if the value of 'x' ever changes, then the value of the whole
expression instantly changes.

The expression is also the product of   (x + 5)  and  (x - 9) .
 
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To practice for a competition, Kate swam 710 meters in the pool each day for 3 weeks. How many kilometers did Kate swim in those
gayaneshka [121]

Answer:

14910 meters

Step-by-step explanation:

3 weeks= 21 days

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21 days= 14910 m

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2 years ago
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A

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3 years ago
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A carpenter has a rectangular wooden board. The diagonal of the board is 18 inches long and one side of the board is 12 inches l
BaLLatris [955]

In this question, it is given that the diagonal of the board is 18 inches long and one side of the board is 12 inches long.

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Now we use pythagorean identity, which is

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Substituting these values, we will get

12^2 + b^2 = 18^2 \\ 144 + b ^2 = 324 \\ b^2 = 324-144 \\ b^2 = 180 \\ b= \sqrt{180} \\ b = 13.4164 inches

And the formula of perimeter is

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3 years ago
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padilas [110]

Answer:

3.2

Step-by-step explanation:

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Hope This Helps bud ^^

6 0
3 years ago
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David 1,988-1,956+32

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