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Snezhnost [94]
3 years ago
11

4/5 miles in 1/5 hour unit rate

Mathematics
1 answer:
eduard3 years ago
5 0

Answer:

4 miles an hour

Step-by-step explanation:

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The inverse variation equation shows the relationship between wavelength in meters, x, and frequency, y. y = 3x10^8/x What is th
Andreyy89

Answer:

.1 (or 1/10)

Step-by-step explanation:

3 * 10^9 = 3 * 10^8/x

<em>Use PEMDAS to interpret</em>

3* 10^9  = 3 * (10^8)/x

<em>Divide both sides by 3</em>

10^9 = (10^8)/x

<em>Divide both sides by 10^8</em>

10 = 1/x

<em>Find the reciprocal of both sides</em>

1/10 = x

8 0
3 years ago
Read 2 more answers
Which of the following is an arithmetic sequence?
guajiro [1.7K]

Answer:

D

Step-by-step explanation:

In an arithmetic sequence, the order must be least to greatest and there must be a consecutive sequence in addition, not any other operation. A is wrong because it is in greatest to least. B is wrong because 0 is the least so all 0's should be at the front instead. C is wrong because each following value is x2.

7 0
3 years ago
Please please need help on these two
kati45 [8]

Answer:

( f + g ) (x) = 2 x^{2}  + x - 4

g(x) - f(x) = x^{2}  - 2 x - 4

Step-by-step explanation:

  1. f(x) = 4 x - 4 and g(x) = 2 x^{2} - 3 x

( f + g ) (x) = f(x) + g(x)

                = 4 x - 4 + 2  x^{2}  - 2 x

                = 2 x^{2} + x -4

   2.  g(x) = x^{2}  + 1 and f(x) = 2 x + 5

g(x) - f(x) = x^{2}  + 1 - (2 x + 5)

              = x^{2}  + 1 - 2 x - 5

              = x^{2}  - 2 x - 4

6 0
3 years ago
Factor 7y^2-21y^3 completely
maksim [4K]
Well you can take out a 7 and y^2 since both have it.
-3y should be your answer because you got rid of 7y^2 and then you have to divide -21/7 to get -3. Also if you take y^2 from y^3 you are left with just a "y".
8 0
3 years ago
Find the widest range of scores that you can get on a final exam in order to receive a grade of B for the class. Using interval
Drupady [299]

Answer:

Correct choice is B

Step-by-step explanation:

Let x% be your final test score, then the average of all test scores is

\dfrac{96+77+74+x}{4}.

Since you must have an average between 80% and 89%, then

80\le \dfrac{96+77+74+x}{4}\le 89,\\ \\320\le 247+x\le 356,\\ \\73\le x\le 109.

X is measured in percent, then the greatest value of x can be 100%. You get that

73\%\le x\le 100%.

4 0
4 years ago
Read 2 more answers
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