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Brilliant_brown [7]
2 years ago
11

Y+47x12.6 rewrite the equation below as a function of x

Mathematics
1 answer:
ella [17]2 years ago
3 0
I'm confused is the x a × symbol or the letter x?
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Solve the system of equations using any appropriate method: 5x + 2y = -4 and -x + 2y = 8
Maru [420]

Answer:

A

Step-by-step explanation:

-x + 2y = 8

5x + 2y = -4

+ x. -2y. -8

6x = -12

÷6. ÷6

x = -2

5(-2) + 2y = -4

-10 + 2y = -4

+10. +10

2y = 6

÷2. ÷2

y = 3

4 0
3 years ago
What is the LCD of 5/42 and 7/30
weqwewe [10]
<span>The lowest common denominator of 5/42 and 7/30 is 210.</span>
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Solve x2-4x-7=0 by completing the square ​
aleksklad [387]
HEY mate here is pratyush from India for your help...

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8 0
3 years ago
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If a polynomial function f(x) has roots 3 and square root of 7, what must also be a root of f(x)
Neko [114]

Answer:

x = - \sqrt{7}

Step-by-step explanation:

Radical roots occur in pairs, that is

x = \sqrt{7} is a root then so is x = - \sqrt{7}

3 0
3 years ago
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40% of what number is 18?
vladimir1956 [14]

Answer:

45

40 percent (calculated percentage %) of what number equals 18? Answer: 45.

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