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Law Incorporation [45]
3 years ago
14

Part A: Divide (8x4y3 + 4x3y2 - 2x2y - 12x2y4) by -2x2y. Show your work, and justify each step.

Mathematics
1 answer:
FinnZ [79.3K]3 years ago
5 0
Let's simplify step-by-step.<span><span><span><span><span>8<span>x4</span></span><span>y3</span></span>+<span><span>4<span>x3</span></span><span>y2</span></span></span>−<span><span>2<span>x2</span></span>y</span></span>−<span><span>12<span>x2</span></span><span>y4</span></span></span><span>=<span><span><span><span><span><span><span>8<span>x4</span></span><span>y3</span></span>+<span><span>4<span>x3</span></span><span>y2</span></span></span>+</span>−<span><span>2<span>x2</span></span>y</span></span>+</span>−<span><span>12<span>x2</span></span><span>y4</span></span></span></span>Answer:<span>=<span><span><span><span><span>8<span>x4</span></span><span>y3</span></span>−<span><span>12<span>x2</span></span><span>y4</span></span></span>+<span><span>4<span>x3</span></span><span>y2</span></span></span>−<span><span>2<span>x2</span></span><span>y</span></span></span></span>
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A dealer sold a car to a man and made
fenix001 [56]

Answer:

<u>110.000</u>

<u></u>

Step-by-step explanation:

Selling at a loss of 5% means it was sold for 95% of its purchase value.

If 120.175 equals to 95% then 100%(the purchase value) is 126.500.

120.175/95*100 = 126.500 (plenty of other ways to calculate this, but this is one of the easiest)

So now we change to the dealer's perspective, he sold the car for 126.500 and for him that meant a 15% profit. If the purchase value is 100%, then the sale value is 115% (purchase value+15% profit)

Calculate the purchase value:

126.500/115*100 = 110.000

The dealer bought the car for 110.000, sold it for 126.500, so he made a profit of 16.500 (126.500-110.000) which is a 15% profit (15% of 110.000 is 16.500).

5 0
3 years ago
I’m putting the right answer which is “6” but the computer keeps telling me I’m wrong, I don’t understand, what else is there to
iragen [17]

You may have have forgotten to find the measure of A. Which would by using your 6 that you got would be 19.  

16X-6=90

96=16X

X=6

8X6-29

48-29

19

3 0
3 years ago
Roll a number cube. If the number cube comes up odd, you win the same number of points as the number on the cube. If the number
laila [671]

Answer:

–0.5

Step-by-step explanation:

Expected value is found by multiplying the probabilities of each roll by the amount won or lost with each roll.

The odd rolls are 1, 3 and 5.  The probability of rolling a 1 is 1/6, and the value is 1; this gives us 1/6(1) = 1/6.

The probability of rolling a 3 is 1/6, and the value is 3; this gives us 1/6(3) = 3/6.

The probability of rolling a 5 is 1/6, and the value is 5; this gives us 1/6(5) = 5/6.

Rolling any even number gives us the same value.  The probability of rolling an odd number is 3/6, and the value is -4; this gives us 3/6(-4) = -12/6.

Together we have

1/6+3/6+5/6-12/6 = 4/6+5/6-12/6 = 9/6-12/6 = -3/6 = -0.5

5 0
3 years ago
Read 2 more answers
Elsie loves to garden the width of her current garden is half the length. Elsie wants to increase both the width and the length
Pani-rosa [81]

Answer:

length of new garden: 3x or 3y times 2

width of new garden: 3y or 3x/2

Area: 3x times 3y

Step-by-step explanation:

x= original length of garden

y= original width of garden

if she triples it she needs to multiply the old measurements by 3

The area of  her new garden is the new measurements multiplied by one another

4 0
3 years ago
The measure of each angle of a regular octagon is _____ the measure of each exterior angle of a regular hexagon.
VikaD [51]
The answer is "A. greater than" because if the number of edges increase, the measure of each exterior angle increases too!

Hope this helps. :)
6 0
3 years ago
Read 2 more answers
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