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3 years ago

Please help which property is illustrated by this example (3 . 2) . 6 = 3 . (2 . 6)

Mathematics

1 answer:

Sunny_sXe [5.5K]3 years ago

7 0

The answer is A, the associative property. being able to group numbers without changing the outcome.

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-3ab+b2+a2 i need help plz

vfiekz [6]

Answer:

a2 - 3ab + b2

Step-by-step explanation:

just saying the 2s are squared :)

7 0

3 years ago

What is the net of a triangular prison?

Olenka [21]

A net of a triangular prism looks like this

4 0

3 years ago

Twelve increased by a number

pochemuha

Answer:

12+# OR 12+x

Step-by-step explanation:

Increased by 12 means plus 12. The word "is" in equations is an equal sign. So far, you have 2n+12. On the other side of the equal sign, you have 31 less than 3 times a number.

3 0

3 years ago

Could someone help me understand how to solve this?

monitta

Answer:

Amount in 4% account: $550

Step-by-step explanation:

Use simple interest formula $I=P\cdot r\cdot t,$ where

I = interest

P = principal

r = rate (as decimal)

t = time.

<u>4% account:</u>

$P_1=x\\ \\r_1=0.04\\ \\t_1=1,$

then

$I_1=x\cdot 0.04\cdot 1=0.04x$

<u>5% account:</u>

$P_2=1,500-x\\ \\r_2=0.05\\ \\t_2=1,$

then

$I_2=(1,500-x)\cdot 0.05\cdot 1=0.05(1,500-x)$

You have earned $69.50 in total, so

$I_1+I_2=69.50\\ \\0.04x+0.05(1,500-x)=69.50\\ \\4x+5(1,500-x)=6,950\\ \\4x+7,500-5x=6,950\\ \\4x-5x=6,950-7,500\\ \\-x=-550\\ \\x=550\\ \\1,500-x=1,500-550=950$

Amount in 4% account: $550

Amount in 5% account: $950

8 0

3 years ago

Find each product.<br><br> 1. (5a3b)(2ab)<br><br> 2.5y(-y2+7y-2)<br><br> PLEASE HELP!!?!

maks197457 [2]

Answer:

(5a3b)(2ab)

Expand

That's

15ab( 2ab )

we have the answer as

5y(-y² + 7y - 2)

Expand

That's

Hope this helps you

5 0

3 years ago