If f(x) =3x+10, find f(4) A.f(4)=17 B.f(4)=22 C.22 D.f(4)=17

Mathematics

1 answer:

Ipatiy [6.2K]3 years ago

6 0

Answer:

$\large\boxed{B.\ f(4)=22}$

Step-by-step explanation:

$f(x)=3x+10\\\\f(4)-\text{put x = 4 to the equation of the function}\\\\f(4)=3(4)+10=12+10=22$

You might be interested in

I am trying to find the next number in this number sequence and I dont know how! its like this, 2,9,37,149,597,2389, ... whats t

Molodets [167]

$\bf 2~~,~~\stackrel{2(4)+1}{9}~~,~~\stackrel{9(4)+1}{37}~~,~~\stackrel{37(4)+1}{149}~~,~~\stackrel{149(4)+1}{597}~~,~~\stackrel{597(4)+1}{2389}~~,~~\boxed{\stackrel{2389(4)+1}{9557}}$

6 0

2 years ago

As part of a study of the treatment of anemia in cattle, researchers measured the concentration of selenium in the blood of 36 c

iris [78.8K]

Answer:

Step-by-step explanation:

Given that a part of a study of the treatment of anemia in cattle, researchers measured the concentration of selenium in the blood of 36 cows who had been given a dietary supplement of selenium (2 mg/day) for one year.

If x is the selenium concentration then

X has mean= 6.21 mg/dl

and std dev = 1.84

Sample size n = 36

std error of sample = $\frac{1.84}{\sqrt{36} } \\=0.307$

Margin of error for 95%

$1.96(0.307)=0.602$

Confidence interval = $(6.21-0.605, 6.21+0.605)\\= (5.605, 6.815)$

4 0

3 years ago

What is the y-intercept of the function f(x)=-2/9+1/3? A. -2/9 B. -1/3 C. 1/3 D. 2/9

Crazy boy [7]

3 0

2 years ago

Suppose a random variable x is best described by a uniform probability distribution with range 22 to 55. Find the value of a tha

const2013 [10]

Answer:

(a) The value of a is 53.35.

(b) The value of a is 38.17.

(d) The value of a is 25.63.

(e) The value of a is 12.06.

Step-by-step explanation:

The probability density function of X is:

$f_{X}(x)=\frac{1}{55-22}=\frac{1}{33}$