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andreyandreev [35.5K]
3 years ago
9

Multiply. assume that no denominator equals zero x^2-16

Mathematics
1 answer:
lawyer [7]3 years ago
4 0
There's nothing to multiply. However, you can factor it to get (x + 4)(x - 4). 
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In his boat, Sheldon can travel 45 mi downstream in the same time that it takes to travel 9 mi upstream. If the rate of the curr
Nataliya [291]

Answer:

9 mph

Step-by-step explanation:

-let x be the speed of current and t be time. The speed equation for both directions can then be represented as:

Speed=\frac{Distance}{Time}\\\\\#Upstream\\(u-6)t=9\\\\\#Donwstream\\\\(u+6)t=45

#Since t is equal in both, we can do away with t.

#We the divide the downstream equation by the upstream equation as:

\frac{u+6}{u-6}=\frac{45}{9}\\\\(u+6)=5(u-6)\\\\u+6=5u-30\\\\4u=36\\\\u=9

Hence, the boat's speed in still water is  9 mph

7 0
3 years ago
Compute the probability of tossing a six-sided die (with sides numbered 1 through 6) and
goblinko [34]

Answer:

the answer is 1 in 6 odds.

4 0
3 years ago
You earn $18 for watching three cars how much do you earn to Washing 2 cars
Sever21 [200]

Answer:

$12

Step-by-step explanation:

3 cars divide that by $18 and u get $6 per car. multiply that by two cars nd you get $12.

6 0
2 years ago
Kyle order pizza for his party. He paid $11.50 a pizza plus an onetime delivery fee of $4.50. Would this be an example of a prop
sergejj [24]

Answer:

No

Step-by-step explanation:

You only pay the $4.50 once.

7 0
3 years ago
You pick a card, roll a die, and find the sum. How many different sums are possible?
lawyer [7]

Answer:

14

Step-by-step explanation:

We know that the lowest number on a die is 1 and the lowest number on a card is 2. We can add these two together to find our first sum, 3.

Next, we will add our highest numbers; 6 + 10, which equals 16. Instead of solving for everything in between, since we have found the lowest and the highest and we are only looking for different sums, we can do the following:

16 - 2

You may be wondering why we would do 16 minus two instead of three. This is because three is included as one of the different combinations. The result of this formula is 14, so we know that there are 14 different combinations.

4 0
2 years ago
Read 2 more answers
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