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vladimir2022 [97]
3 years ago
12

If x= -3 is one solution of x2 + 9x + 18, what is the other solution?​

Mathematics
1 answer:
Softa [21]3 years ago
6 0
(x+6)(x-3)
So x=-6 or x=3
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Which number is irrational?<br> -4<br> 2/9<br> 8.26<br> 11
kipiarov [429]

Answer:

None of them are irrational.

Step-by-step explanation:

An Irrational Number is a real number that cannot be written as a simple fraction.

Therefore:

-4 can be written as -4/1

2/9 is already in fraction

8.26 can be written as 826/100

11 can be written as 11/1

None of them are irrational.

However numbers like  \sqrt{x}, \pi are irrational as they can not be represented as fractions.

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3 years ago
Use two points to enter an equation for the function. Give your answer in the form a(b)^n. In the event that a = 1, give your an
levacccp [35]

Answer:

m(n) = 24 (0.75)^n

Step-by-step explanation:

1) <u>The two points are</u>:

a) On the first swing she swings forward by 18 degrees: <em>(1, 18)</em>

b) On the second swing she only comes 13.5 degrees forward: <em>(2,13.5)</em>

2) <u>The general equation using the form given is</u>:

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3) <u>Substitute the two points</u>:

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4) <u>Divide the second equation by the first one</u>:

⇒ 13.5 / 18 = B

⇒ B = 0.75

5) <u>Substitue B = 0.75 into the first equation</u>:

18 = A (0.75) ⇒ A = 18 / 0.75 = 24

Hence, the equation is:

m(n) = 24 (0.75)^n

5 0
3 years ago
Subtract the quotient of 18 and 2 from the sum of 22 and 9. A. 22 B. 4 C. 23 D. 5
frez [133]
Okay, so this is simple. It just needs steps.

Quotient of 18 and 2 = 9.
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31 - 9 = 22. 
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I'm pretty sure its b

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3 years ago
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421 - 195 = $226 over 

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