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SpyIntel [72]
3 years ago
10

Use the appropriate identity to rewrite the expression 4x^6-9

Mathematics
1 answer:
lawyer [7]3 years ago
5 0

Answer:

D.

Step-by-step explanation:

4x⁶-9 = (2x³)² - (3)²

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A freight train from city A to city B and a passenger train from city B to city A left the cities at the same time, at 10:00 AM,
djyliett [7]

Answer: Both trains would meet at 1 pm

Step-by-step explanation:

Let t represent the time at which both trains will pass each other.

The distance between the cities is 360 miles. This means that by the time both trains meet, the total distance covered would be 360 miles.

Distance = speed × time

The freight train is travelling at 50 mph. Distance covered by the freight train in t hours is 50t.

The passenger train is travelling at 70 mph. Distance covered by the passenger train in t hours is 70t.

Since the total distance covered is 360 miles, it means that

50t + 70t = 360

120t = 360

t = 360/120

t = 3 hours

Both trains would meet at 1 pm

8 0
4 years ago
Find the probability of rolling a prime number when a 16-sided die is rolled.
Katen [24]

Answer:

6/16

Step-by-step explanation:

On a 16 sided die there would be number as follows :

1,2,3,.. 16 The prime number out in this set of numbers are

2,3,5,7,11, and 13

There are 6 prime number so the probability of rolling a prime number is

6/16

4 0
3 years ago
Read 2 more answers
What is 5 tens+ 19 ones equal? Gdyugygeuifh hfuiehfiuheoih fioh;ewiofhoiwe fhuowhrfiuho h j k l ;
Mrrafil [7]

5x10=50+19=69

Your answer is 69

4 0
3 years ago
Read 2 more answers
Ive.
allochka39001 [22]

Answer:

50 + 200h

Step-by-step explanation:

4 0
3 years ago
A coordinate plane with a line passing through the points (negative 4, negative 5) and (1, negative 1).
Ksju [112]

Answer:

4x - 5y - 9 = 0

\frac{9}{4}

\frac{-9}{5}

Step-by-step explanation:

The equation of a straight line passing through the points (-4,-5) and (1,-1) is given by \frac{y - (-5)}{-5-(-1)} =\frac{x-(-4)}{-4-1}

⇒ \frac{y+5}{-4} =\frac{x+4}{-5}

⇒ 5y + 25 = 4x + 16

⇒ 4x - 5y - 9 = 0 ....(1) (Answer)

Now, this above equation can be represented as

\frac{x}{\frac{9}{4} } + \frac{y}{\frac{-9}{5} } =1

Therefore, the x-intercept is \frac{9}{4} (Answer)

And the y-intercept is \frac{-9}{5}. (Answer)

7 0
4 years ago
Read 2 more answers
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