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2 years ago

9

Which property is used to write a(x y) = ax ay?

1 answer:

Zinaida [17]2 years ago

7 0

If you are referring to:
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a(x + y) = ax + ay ; AND
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a(x − y) = ax <span>− ay ;
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The property is the "distributive property of multiplication".
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The circle has a radius of 3 cm. What is the area of the circle?

STatiana [176]

You would do
3.14*r^2
which is 3
r=3
what you do is
3.14*3*3 which is 28.26cm^2 which is D

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3 years ago

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PLEASE HEP ME QUICK!!!!: Tom travels between the two mile markers shown and then finds his average speed in miles per hour. Sele

slega [8]

Answer:

$speed=\frac{195\ miles}{3\ hours}$

$3\ hours=\frac{195\ miles}{speed}$

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Step-by-step explanation:

we know that

The speed is equal to divide the distance by the time

Let

x -----> the distance in miles

y ----> the time in hours

$speed=\frac{x}{y}$

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The time is equal to subtract 1:30 pm from 4:30 pm

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substitute in the formula of speed

$speed=\frac{195\ miles}{3\ hours}$

<em>Isolate 3 hours</em>

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$195\ miles=3\ hours*(speed)$

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2 years ago

Need help with math problem give 5 stars and a good rating

slavikrds [6]

Answer:

B,C,D

Step-by-step explanation:

24ft =288 in A IS FALSE

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2 years ago

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Answer: $46x^2+73x+15$

Step-by-step explanation:

The area of a rectangle can be calculated with the formula:

$A=lw$

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w: the width of the rectangle.

The area of the remaning wall after the mural has been painted, will be the difference of the area of the wall and the area of the mural.

Knowing that the dimensions of the wall are $(6x+7)$ by $(8x+5)$ , its area is:

$A_w=(6x+7)(8x+5)\\\\A_w=48x^2+30x+56x+35\\\\A_w=48x^2+86x+35$

As they are planning that the dimensions of the mural be $(x+4)$ by $(2x+5)$ , its area is:

$A_m=(x+4)(2x+5)\\\\A_m=2x^2+5x+8x+20\\\\A_m=2x^2+13x+20$

Then the area of the remaining wall after the mural has been painted is:

$A_{(remaining)}=A_w-A_m\\\\A_{(remaining)}=48x^2+86x+35-(2x^2+13x+20)\\\\A_{(remaining)}=48x^2+86x+35-2x^2-13x-20\\\\A_{(remaining)}=46x^2+73x+15$

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Add using a number line. -3/4 + 1 1/4

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Find 1 1/4 on the number line and count back 3/4 (why it is negative) answer is 1/2.

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