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strojnjashka [21]
4 years ago
7

Combine like terms. (–3y2 – 7y – 9) – (4y2 + 6y + 9)

Mathematics
2 answers:
8090 [49]4 years ago
7 0

To combine like terms: -7y2 - 13y - 18

balu736 [363]4 years ago
3 0
-7y^2-13y-18

___________________________________________________________

Like this answer? PM me for more awesome answers! - Boodle
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Right isosceles ΔA B C has hypotenuse length h . DE is a midsegment with length 4 x that is not parallel to the hypotenuse. What
Kruka [31]

The perimeter of right isosceles ΔABC with midsegment DE is 16 + 8√2.

If right isosceles ΔABC has hypotenuse length h, then the two other sides are congruent.

side a = side b

Using Pythagorean theorem, c^2 = a^2 + b^2

h^2 = a^2 + b^2      a = b

h^2 = 2a^2

a = h/√2

If DE is a midsegment not parallel to the hypotenuse, then it is a segment that connects the midpoints of one side of a triangle and the hypotenuse. See photo for reference.

ΔABC and ΔADE are similar triangles.

a : b : h = a/2 : 4 : h/2

If a/2 = a/2, then b/2 = 4.

b/2 = 4

b = 8

If a = b, then a = 8.

If a = h/√2, then

8 = h/√2

h = 8√2

Solving for the perimeter,

P = a + b + h

P = 8 + 8 + 8√2

P = 16 + 8√2

P = 27.3137085

To learn more about midsegment: brainly.com/question/7423948

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5 0
1 year ago
Graph y=4sin pi/4 (x+3)+1
Shtirlitz [24]
Where is the graph????
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3 years ago
A hike starts at an elevation 20 meters below sea level and ends at a point 3400 meters higher than the starting point. What wou
QveST [7]

The correct answer is 3380 meters

Explanation:

The initial elevation of the hike can be represented as -20 meters, this is because the initial elevation is below the sea level, and in terms of elevation the sea level is considered to be 0. Now, using this number the final elevation can be calculated by adding the two numbers:

-20 + 3400 = 3380

This implies the final elevation has 3380 meters

You can also get this same result by considering there are 20 meters from the initial elevation to the sea level and then 3380 meters from the sea level to the final elevation (3380+20 = 3400).

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3 years ago
(01.01 MC)Why is 2 + (−3) equal to −1?
Mama L [17]

Answer:

Think of it like a number line. If you start at 2 and move three to the left you land on -1.

4 0
4 years ago
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Is this relation a function. please help me​
Juliette [100K]

no this relation is not a function, because for each input (x), there is no output (y)

7 0
4 years ago
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