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Westkost [7]
3 years ago
10

F(x)=-x^2-4x-19 Find f(−9)

Mathematics
2 answers:
maxonik [38]3 years ago
8 0

Answer:

-64.

Step-by-step explanation:

f(x)=-x^2-4x-19            Replacing x by -9:-

f(-9)= -(-9)^2-4(-9)-19

= -81 + 36 - 19

= 36 - 100

= -64.

My name is Ann [436]3 years ago
5 0

Answer:

-64

Step-by-step explanation:

f(x)=-x^2-4x-19

Let x = -9

f(-9) = - (-9)^2 -4(-9) -19

     = -81 +36 -19

     =-64

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When there's a line under < and >.

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Solve each system by substitution. Y=-4 Y=x-8
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Is 5√2 rational or irrational
Allushta [10]
First solve it. It will be 7.071.......

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5 0
3 years ago
6
Maksim231197 [3]

Answer:

5 10 16 17 18

Step-by-step explanation:

Using the box plot above, the 5 number summary is this :

Minimum = value at the starting point of the left whisker = 5

Lower quartile = value at the start point of the box = 10

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4 0
3 years ago
No links
timurjin [86]

The answer is 75°

________________________________

The total degrees of this polygon is 540°

We know this because the formula to find this

<u>180° (n-2) </u>

n is the number of sides the polygon has!

180° (5-2) ⇒ 180° ×3 = 540°

540° - 90 - 120 - 120 -135 = ?

75° = ?

4 0
3 years ago
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