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diamong [38]
1 year ago
7

Which of these is a correct expansion of (3x − 1)(4x² + 5)?

Mathematics
1 answer:
My name is Ann [436]1 year ago
8 0
The correct expansion is B. 3x. 4x^2 + 3x•5 + (-1) • 4x^2+ (-1) • 5
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Scorpion4ik [409]
The points that are graphed would be (0,-1) and (1/2, 2).

Reasoning: Slope is 2, and the y-intercept is (0,-1)
4 0
3 years ago
Evaluate the integral using integration by parts with the indicated choices of u and dv. (Use C for the constant of integration.
Aleksandr-060686 [28]

Take

u=\ln x\implies\mathrm du=\dfrac{\mathrm dx}x

\mathrm dv=4x^2\,\mathrm dx\implies v=\dfrac43x^3

Then

\displaystyle\int4x^2\ln x\,\mathrm dx=\frac43x^3\ln x-\frac43\int x^2\,\mathrm dx=\frac43x^3\ln x-\frac49x^3+C

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3 years ago
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Sphinxa [80]
1) Answer: The part of the quadratic formula tells us whether the quadratic equation can be solved by factoring is b^2-4ac

2) 4x^2+6x+2=0
ax^2+bx+c=0; a=4, b=6, c=2
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Answer: b^2-4ac=4
7 0
3 years ago
Help pls!!!
SVEN [57.7K]

Answer:

an = -6n + 5.

Step-by-step explanation:

This is an arithmetic sequence with first term a1 = -1 and common difference d = -6

an = a1 + d(n-1)

an = -1 + -6(n - 1)

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an = -6n + 5.

3 0
3 years ago
GE = 3x + 12 and GH = 72. Find the value of x.
Furkat [3]

Answer: x=20

Step-by-step explanation:

5 0
3 years ago
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