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3 years ago

Is the expression a valid way to calculate the total bill with a 15% tip. (Yes it no for each letter)

Mathematics

2 answers:

prisoha [69]3 years ago

5 0

Answer:

x*15% (x times fifteen percent)

Step-by-step explanation:

Say x is 20, you multiply 20 times 15% and that will be your answer

____ [38]3 years ago

4 0

Answer:There are more numbers so were are they?

Step-by-step explanation:

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If f has a local maximum value at x = a, what would you expect the graph of f ' to look like near x = a?

DanielleElmas [232]

Local maximum looks like a downward U
So flip that letter U and you'll be looking at a local max.
The graph of f ' should be positive and increasing as x approaches a.

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3 years ago

The shool is 2 kilometers away from the town library.what is the distance in meters

tia_tia [17]

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3 years ago

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a square red rug has a purple square in the center. the side length of the purple square is x inches. the width of the red band

Bumek [7]

Answer:

Area of red band is $(20x + 100) inch^{2}$

Step-by-step explanation:

We know that area of square = $side^{2}$

Please refer to the attached figure, we have to calculate the area of red band.

Required area = Area of square ABCD - Area of purple square

Side of purple square = $x$

So, area of purple square = $x^{2}$

ABCD is a square with purple square at the center and there is symmetry in the figure.

So, width of red band towards both the end is 5 inches.

$\Rightarrow \text{side of }ABCD = 5 + 5 +x = (x+10) inches$

Required area = $(x+10)^{2} - x^{2}$

Using formula $a^{2} - b^{2} = (a-b)\times (a+b)$

$\Rightarrow (x+10-x)(x+10+x)\\\Rightarrow (10)(2x+10)\\\Rightarrow (20x+100)$

Hence, Area of red band is $(20x + 100) inch^{2}$

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3 years ago

Which graph shows line symmetry about the y-axis?

frutty [35]

Answer:

1st one does

Step-by-step explanation:

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Example of conjectures

stiks02 [169]

Conjectures are statements believed to be true that are based upon observations.
Example: 2,4,6,8,10,12
What would be the next number? 14

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4 years ago