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Nataly [62]
3 years ago
11

Find

Mathematics
1 answer:
Ahat [919]3 years ago
8 0

Answer:

  D)  5.0×10^6

Step-by-step explanation:

Judging by the answer choices, it looks like you want the value of ...

  \dfrac{(2.2\cdot 10^7)(5\cdot 10^8)}{(2.5\cdot 10^3)(8.8\cdot 10^5)}=\dfrac{2.2(2\cdot 2.5)}{2.5(2.2\cdot 4)}\cdot 10^{7+8-3-5}\\\\=0.5\cdot 10^7=\boxed{5\cdot 10^6}

Common factors in numerator and denominator cancel, and the usual rules of exponents apply.

  (a^b)(a^c) = a^(b+c)

  1/a^b = a^-b

__

Of course 2/4 = 1/2 = 0.5 = 5×(1/10) = 5×10^-1.

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WILL GIVE ALL MY POINTS working alone, machine a takes 2 hours to build a car, working alone machine b takes 3 hours to build a
kati45 [8]

Answer:

It will take Machine A 20 additional minutes.

Step-by-step explanation:

First we have get the rate of work per hour, Machine A builds 1/2 of a car per hour, while Machine B builds 1/3 of a car per hour.

Using this we can determine the amount of work that has been done so far in one hour before Machine B broke down:

1/2 + 1/3 = 3/6 + 2/6 = 5/6

Now we can produce an equation accordingly to determine how much time it'll take machine a to finish the job:

5/6 + 1/2x = 1

1/2x = 1/6

x = 1/3 hours = 20 minutes

Note: In the question you typed "how much additional time will it take machine b to finish" but I think you meant machine a because machine b broke down. Please correct me if I'm wrong.

Hope this helps! And let me know if you have any questions!

7 0
4 years ago
Transversal problems with equations level 1 (6x+10) (10x+10)
IRISSAK [1]

Answer:

10

Step-by-step explanation:

Since m||n the sum of given angles is equal to 180 (they are supplementary)

6x + 10 + 10x + 10 = 180 add like terms

16x + 20 = 180 subtract 20 from from both sides

16x = 160 divide both sides by 16

x = 10

4 0
2 years ago
If the leading coefficient of a quadratic function is negative then the graph of the function extends from?
coldgirl [10]
I wouldn't use the phrase "extends from."  If the leading coeff. is neg, then the graph opens downward.  Without more info we do not know the max of this fn.  If we did know it, we could state that the graph max is (value) and that the graph "extends downward from this value."

5 0
3 years ago
Read 2 more answers
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Lemur [1.5K]
48 in total theirs two people so that’s 12 each but joe had 2 twice as many as Ed. Which Ed ate 6
6 0
3 years ago
3. Ally has a piece of string that is 6 yards 2 feet long. How many inches of string does she have?​
inna [77]
240 inches will be the correct answer.
5 0
2 years ago
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