2 years ago

-2(2x + 9) =2 i need to know the answer please help

Mathematics

2 answers:

Yuliya22 [10]2 years ago

5 0

Divide both sides by the numeric factor on the left side, then solve.

X =−5

Alex17521 [72]2 years ago

3 0

Answer:

x=-5

Step-by-step explanation:

distribute -2 [ -4x-18=2 ]

add 18 to both sides [ -4x = 20 ]

divide both sides by -4 [ x=-5 ]

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State the measurement of <1

Colt1911 [192]

Answer:

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Step-by-step explanation:

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2 years ago

Which shows one way to determine the factors of x^3 - 9x^2 + 5x - 45 by grouping ?

adoni [48]

You can group first two conjunctions and second two:
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2 years ago

Work out the area of this circle. Take pi to be 3.142 and give your answer to 1 decimal place

Rashid [163]

Step-by-step explanation:

<em>I think you have forgotten to attach the question. </em>

<em>Anyways....</em>

In order to find the area of a circle use the formula:

π $r^{2}$ Where r is the radius

For example the radius is 3cm. The area of the circle will be:

π × $3^{2}$

Since you have taken pi as 3.142...

3.142 × $3^{2}$

3.142 × 9

= 28.278

In order to find the answer to 1 decimal place, check the number next to the number right after the decimal. Is it a number greater than or equal to 5? then add +1 to the number.

= 28.3 $cm^{2}$