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Oksi-84 [34.3K]
2 years ago
15

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Mathematics
1 answer:
irinina [24]2 years ago
8 0

Answer:

Step-by-step explanation:

Remark

f(x) = 9x^2 - 5x + 3 is given. The notation means that wherever you see and x on the right, you replace it with the x in the brackes on the left. f(3) is a direction, not anything you have to adjust or manipulate.

Solution

f(-3) = 9*(-3^2) - 5*(-3) + 3       (-(3))^2 = -3 * -3 = 9  two minuses make a +

f(-3) = 9*(-3)(-3) + 15 + 3          -3 times an operation of minus equals a +

f(-3) = 9 * 9 + 15 + 3

f(-3) = 81 + 15 + 3

Answer: f(-3) = 99

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3 0
3 years ago
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4x-5=19 please help thank you
frosja888 [35]

Answer:

x=6

Step-by-step explanation:

4x - 5 = 19

4x = 19 + 5

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x =  \frac{24}{4}

x = 6

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2 years ago
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DedPeter [7]
A= n+3
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3 years ago
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6 0
3 years ago
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Convert base 10 273 to a base 12
Margaret [11]
The highest power of 12 that divides 273 (with remainder) is 12^2=144, and dividing gives

273=1(144)+129

Divide the remainder term by the next highest power of 12, 12^1=12.

129=10(12)+9

So 273_{10}=1a9_{12}, since

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