2 years ago

Let f(x)= 3x2 +5 and g(x) = - 5x + 3. Find the following. (f-g)(-4) (f-9)(-4)=

1 answer:

5 0

Answer: 3x^2 - 3

Step by step explanation:

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crimeas [40]

The answer is A. X=-1/3 or x=2/3

5 0

2 years ago

Varvara68 [4.7K]

Answer:

a = 1.5

b = 1.75

Step-by-step explanation:

First, we need to solve $(x+a)^2$ and replace the result in the initial equation as:

$x^2+3x+4=(x+a)^2+b\\x^2+3x+4=x^2+2ax+a^2+b$

Then, this equality apply only if the coefficient of $x$ is equal in both sides and the constant is equal in both sides.

It means that we have two equations:

$3x=2ax\\4=a^2+b$

So, using the first equation and solving for a, we get:

$3x=2ax\\3=2a\\a=\frac{3}{2}=1.5$

Finally, replacing the value of a in the second equation and solving for b, we get:

$4=a^2+b\\4=1.5^2+b\\b=4-1.5^2\\b=4-2.25\\b=1.75$

3 0

3 years ago

dsp73

Answer:

36 and 72

Step-by-step explanation:

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2 years ago

labwork [276]

Now I'm not completely sure of this answer but by my calculations the member can visit at least 36 times with $42.

6 0

2 years ago

Maru [420]

Slope = (-6 - 2)/(-1 - 3)= -8/-4 = 2

answer
slope = 2

3 0

3 years ago