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tigry1 [53]
3 years ago
10

Triangle ABC below has a right angle C and a height CD. (A height in a triangle connects its vertex and the opposite side, and i

s perpendicular to that side.)
If AC is 3 units long and BC is 4 units long, what is the length of AD?
Mathematics
1 answer:
Y_Kistochka [10]3 years ago
5 0

can you show the picture please?

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Help answer and EXPLAIN STEP BY STEP
pychu [463]

15. (-k^{3} -5k^{2} + 1) - (6k^{3}-k^{2} -2)

Step 1: Distribute the subtraction sign to all the numbers in the second set of parentheses...

(-k^{3} -5k^{2} + 1) - (6k^{3}-k^{2} -2)

-k^{3} -5k^{2} +1 - 6k^{3} +k^{2} +2

Step 2: Combine like terms (k^{2}'s go with k^{2}'s)

-k^{3} -5k^{2} + 1 - 6k^{3}+k^{2} +2

-5k^{2} +k^{2}

-4k^{2}

-k^{3} -4k^{2} + 1 - 6k^{3}+2

Step 3: Combine like terms (k^{3}'s go with k^{3}'s)

-k^{3} -4k^{2} + 1 - 6k^{3}+2

-k^{3} + (- 6k^{3})

-7k^{3}

-7k^{3} -4k^{2} + 1 +2

Step 4: Combine like terms (normal numbers go with normal numbers)

-7k^{3} -4k^{2} + 1 +2

1 + 2

3

-7k^{3} -4k^{2} + 3

You were correct!

16. 49m^2 - 84mn + 36n^2

I don't really know how to explain this one but I got: (7m-6n)(7m-6n)

7 0
4 years ago
Mr. Stanton bought 121 feet of rope to repair a rope bridge. The ratio of the two pieces that he needs from the length he bought
shutvik [7]
The length of piece will be 44 and 77.
7 0
4 years ago
Help help math math math please
natita [175]

Answer:

-2) -14

0) -8

2) -2

4) 4

Step-by-step explanation:

Plug in each input for x, and solve for y

3 0
2 years ago
To the nearest 10,000 the population of Vermont was estimated to be about 620,000 in 2008 what might have been the exact populat
makvit [3.9K]

Answer:

619,500 to 620,499

Step-by-step explanation:

Estimated Population of Vermont = 620,000

This figure is rounded to nearest 10,000. The actual figure could have been either rounded up or rounded down to get this estimated figure.

Remember that, a number is rounded up when the digit to its right is 5 or greater than 5. Likewise, a number if rounded down if the digit to its right is lesser than 5.

So, the population from 619,500 to 619,999 will be rounded up to 620,000.

And

Population from 620,001 to 620,499 will be rounded down to 620,000 when we are rounding to nearest 10,000

From this we can conclude that the actual population of Vermont can be anywhere between the extreme limits mentioned above i.e. anywhere between 619,500 to 620,499

8 0
4 years ago
Graph y=8 sec1/5 Ø the answers are graphs I am just unsure of how to answer
Phoenix [80]

Answer:

Use a graphing calc.

Step-by-step explanation:

5 0
4 years ago
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