3 years ago

For f(x)=4x+1 and g(x)=(x^2)-5, find (f+g)(x).

Mathematics

1 answer:

Maslowich3 years ago

8 0

$f(x)=4x+1;\ g(x)=x^2-5\\\\(f+g)(x)=f(x)+g(x)\\\\(f+g)(x)=(4x+1)+(x^2-5)=4x+1+x^2-5=x^2+4x+(1-5)\\\\=\boxed{x^2+4x-4}$

You might be interested in

If you can do this thank you :)

garik1379 [7]

Answer:

391

Step-by-step explanation:

because according to the questions that's it

7 0

3 years ago

The formula for simple interest I is I = Prt. Solve the formula for the interest rate r. What is the interest rate r if the prin

julia-pushkina [17]

3% a year is your answer

4 0

3 years ago

A researcher is planning to compare the effects of two different types of lights on the growth of bean plants. She expects that

kicyunya [14]

Answer:

The sample size is $n = 36$

Step-by-step explanation:

From the question we are told that

The sample standard deviation is $s = 1.5$

The mean difference of the two groups is $\=x _ 1 - \=x_2 = 1$

The standard error is $SE = \frac{ \= x_1 - \= x_2}{4}$

=> $SE = \frac{1}{4}$

Let assume that the confidence level is 95% hence the level of significance is

$\alpha = (100-95)\%$

=> $\alpha = 0.05$

So the critical value of $\frac{\alpha }{2}$ obtained from the normal distribution table is

$Z_{\frac{\alpha }{2} } = 1.96$

Generally the margin of error is mathematically evaluated as

$E = Z_{\frac{\alpha }{2} } * SE$

$E = 1.96 * \frac{1}{4}$

$E = 0.49$

Generally the sample size is mathematically represented as

$n =[ \frac{Z_{\frac{\alpha }{2} * s^2}}{E}]^2$

=> $n = [\frac{1.96 * 1.5}{0.49} ]^2$

=> $n = 36$

6 0

3 years ago

1. Find f(3) for<br> the function<br> below.<br> f(x) = 4^x

Wewaii [24]

Answer:

Step-by-step explanation:

f(x) = 4^x,

When x = 3,

=> f(3) = 4^3

= 4 * 4 * 4

= 64

7 0

3 years ago

Read 2 more answers

Anyone out here play fn or 2k? cause when i get my game bck im trynna run 10-15 only

Contact [7]

Answer:

I do but I only play fn not 2k

6 0

3 years ago