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lozanna [386]
3 years ago
6

Find the value of this expression if x = -9. x2 + 3 x +6

Mathematics
1 answer:
iren [92.7K]3 years ago
7 0

Answer:

Step-by-step explanation:

x² + 3 = (-9)² + 3          {  (-9)² = -9 *-9 = 81}

     = 81 + 3

       = 84

x + 6 = -9 + 6 = -3

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Ineed help help me please
melamori03 [73]
The symbol ₁₂P₉ represents the permutations of 9  quantities out of 12.
By definition,
_{12}P_{9} =  \frac{12!}{(12-9)!} = \frac{12!}{3!}

From the calculator,
12! = 479,001,600
3! = 6

Therefore
₁₂P₉ = 479001600/6 = 79,833,600

Answer: 79,833,600
8 0
3 years ago
Explain why y = 3x IS an exponential function and y = x3 is NOT an exponential function.
arlik [135]
Because y=3x has a coefficient of 3 and y=x3 does not have a coefficient because the variable is the first terms. therefore it is not an exponential function.
8 0
3 years ago
PLEASE HELP WILL GIVE BRAINLIEST
vekshin1

Answer:

Step-by-step explanation:

Tod did not want the answer?

3 0
2 years ago
Ten times the sum of half a number and 6 is 8.
Sedaia [141]
That would be 

10( \frac{1}{2} n + 6) = 8
\frac{1}{2} n+6= \frac{8}{10}
.5n + 6 = .8
.5n = -5.2
n=-2.6

Hope that helps :)
8 0
3 years ago
What are the x and the y in this function
Marianna [84]

Answer:

X = 3

Y = all real numbers

Step-by-step explanation:

x is the input

y is the output

The equation would be x = 3

7 0
2 years ago
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