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2 years ago

I'm stuck on this question plz help

Mathematics

1 answer:

frozen [14]2 years ago

5 0

4X3=12 The answer is C
6X2=12

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How many solutions are there to an inequality?

zhenek [66]

Answer: 3

Step-by-step explanation: There can be none, one, or infinite solutions. Therefore there can be up to three possible solutions to an inequality.

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2 years ago

Multiply (FOIL) ( x - 3)( 2x + 5) (3x + 7)(2x - 1)

Troyanec [42]

$(x-3)(2x+5)=2x^2+5x-6x-15=\boxed{2x^2-x-15}\\\\(3x+7)(2x-1)=6x^2-3x+14x-7=\boxed{6x^2+11x-7}$

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2 years ago

Given that f ( x ) = 2 x − 3 and g ( x ) = 2 x , evaluate f ( f ( 3 ) )

Anna [14]

Answer:

Step-by-step explanation:

f(3) = 2*3 -3

= 6-3=3

f(f(3)) = f(3)

so again,

f(3) = 2*3 -3

= 6-3= 3

4 0

2 years ago

A rectangular parking lot has a perimeter of 384 meters. The length of the parking lot is 36 meters less than the width. Find th

-Dominant- [34]

Answer:

The length and width of the parking lot is 78 meters and 114 meters respectively.

Step-by-step explanation:

Given;

Perimeter of the parking lot = $384\ m$

Solution,

Let the width of the parking lot be x.

Then, according to question length = (x-36).

The perimeter of a rectangle is sum of all the sides of rectangle. Which is given by an expression;

$perimeter=2\times(length+width)$

Now substituting the values, we get;

$384=2\times(x-36+x)\\\frac{384}{2}=(2x-36)\\192=2x-36\\192+36=2x\\2x=228\\x=\frac{228}{2}= 114$

Width = $114\ m$

Length = $x-36=114-36=78\ m$

Hence the length and width of the parking lot is 78 meters and 114 meters respectively.

6 0

2 years ago

Which expressions are equivalent to the expression 7(5 + m) - 8?

Akimi4 [234]

Answer:

27 + 7m

Step-by-step explanation:

$7(5 + m) - 8$

open the bracket:

$= 35 + 7m - 8 \\ = 27 + 7m$

3 0

2 years ago