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stepan [7]
1 year ago
6

PLEASE HELP ASAP 30 POINTS!

Mathematics
2 answers:
Zarrin [17]1 year ago
7 0

Answer:-4/3

Step-by-step explanation:

sveta [45]1 year ago
6 0

Answer:

-4/3

Step-by-step explanation:

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Using the given zero, find all other zeros of f(x). -2i is a zero of f(x) = x4 - 45x2 - 196
lakkis [162]
Hello,

f(x)=(x-2i)(x+2i)(x-7)(x+7)



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Solve the following system of equations using substitution. What is the value of y?
jonny [76]
X = 15 and y = 25
hope this helps

3 0
3 years ago
Solve each system by elimination<br><br> 5x+y=9<br> 10x-7y=-18<br><br> -4x+9y=9<br> x-3y=-6
tiny-mole [99]
5x + y = 9....multiply by 7
10x - 7y = -18
----------------
35x + 7y = 63 (result of multiplying by 7)
10x - 7y = -18
----------------add
45x = 45
x = 45/45
x = 1

5x + y = 9
5(1) + y = 9
5 + y = 9
y = 9 - 5
y = 4

solution is : (1,4)
=========================
-4x + 9y = 9
x - 3y = -6 ....multiply by 4
----------------
-4x + 9y = 9
4x - 12y = -24 (result of multiplying by 4)
---------------add
- 3y = - 15
y = -15/-3
y = 5

x - 3y = -6
x - 3(5) = -6
x - 15 = -6
x = -6 + 15
x = 9

solution is : (9,5)
3 0
3 years ago
4x-5y+2z=-3<br> 6x+4y+9z=8<br> 11x-2y-z=7
Nutka1998 [239]

Answer:

thank you i need that

Step-by-step explanation:

4 0
3 years ago
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