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3 years ago

I know its big...sorry for that, but i really need the awnsers -_-

Mathematics

2 answers:

melamori03 [73]3 years ago

7 0

16- 3cm^3 because 3x3x3=27
24- 1-3
25- 1, because any number to the 0 power equals 1.

sorry i couldn’t answer the rest!!

BlackZzzverrR [31]3 years ago

3 0

Answer:

#20 is irrational, #24 is 33/100, and #25 is 0

Step-by-step explanation:

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Suri solved the equation x squared = 49 and found that x=7. What error did Suri make?

Anastaziya [24]

Answer:

x = $\frac{+}{-}$ 7

Step-by-step explanation:

$x^{2}$ = 49

$\sqrt{49}$ can equal 7 or -7

7 x 7 = 49. -7 x -7 = 49

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3 years ago

Simplify the expression (2x − 9)(x + 6)

kenny6666 [7]

Answer:

Simplified form of given expression (2x – 9 )( x + 6 ) is $2 \mathrm{x}^{2}+3 \mathrm{x}-54$

Solution:

We need to simplify following expression.

(2x – 9) ( x + 6)

For sake of simplicity lets first assume 2x – 9 = A

So expression becomes A(x+6)

= Ax + A6

Now replace A by 2x – 9

= (2x – 9 ) x + (2x – 9 ) 6

$=2 \mathrm{x}^{2}-9 \mathrm{x}+12 \mathrm{x}-54$

On simplification, we get

$=2 \mathrm{x}^{2}+3 \mathrm{x}-54$

Hence simplified form of given expression (2x – 9 )( x + 6 ) is $= 2 \mathrm{x}^{2}+3 \mathrm{x}-54$

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3 years ago

What is the image of point (4,3) if the rotation is -270

Gre4nikov [31]

Were is the image so i can help you

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3 years ago

How can you create a rational number ?

trasher [3.6K]

-- Write a fraction with whole numbers on top and bottom.
or
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3 years ago

Which is the equation of the line that has a slope of 3 and goes through the point (-3,-5)

xeze [42]

y = mx + b

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Hope this helps! ;)

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3 years ago