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lana [24]
3 years ago
9

Need help w precal/algebra 2

Mathematics
1 answer:
Daniel [21]3 years ago
3 0

Answer:

g(-2) = -7

Step-by-step explanation:

To find g(-2), plug -2 into g(x).

g(x) = -4x² + 3x + 15

g(-2) = -4(-2)² + 3(-2) + 15

g(-2) = -4(4) + 3(-2) + 15

g(-2) = -16 + (-6) + 15

g(-2) = -1 + (-6)

g(-2) = -7

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\\ \quad \\ \quad \\
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4 years ago
Solve: -23 = x - 23 * please help I'll add extra points
Serjik [45]
X=0

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4 0
3 years ago
X2 + 4x - 9 = 5x + 3<br> O A. 4<br> O B. -3<br> O C. -7<br> O D. 5<br> E. -2<br> F-4
elena-14-01-66 [18.8K]

Answer:

{x}^{2}  + 4x - 9 = 5x + 3 \\  {x }^{2}  - x - 12 \\  {x}^{2}  - 4x + 3x - 12 \\ x(x - 4) + 3(x - 4) \\ (x - 4)(x + 3) \\ x = 4 \: and - 3

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3 years ago
How do I simplify this equation?
cupoosta [38]

Answer:

\large\boxed{\sqrt[3]{3^{15}}=243}

Step-by-step explanation:

\sqrt[3]{3^{15}}\\\\\text{use}\ (a^n)^m=a^{nm}\\\\=\sqrt[3]{3^{5\cdot3}}=\sqrt[3]{(3^5)^3}\\\\\text{use}\ \sqrt[n]{a^n}=a\\\\=3^5=243

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3 years ago
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Answer:

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