3 years ago

Given f(x) = -4x + 3, find f(-3).

Mathematics

1 answer:

Ket [755]3 years ago

5 0

Answer:

Step-by-step explanation:

Replace x with -3

f(x) = -4(-3) +3

= 15

You might be interested in

Equivalent expression to 3(4m-2)-2(m+5

wolverine [178]

Answer:

10m - 16

Step-by-step explanation:

1. Perform the indicated multiplication. We get 12m - 6 - 2m - 10.

2. Combine like terms: We get 10m - 16

4 0

3 years ago

What is 286 over 465 in simplest form?

Sholpan [36]

$\frac{286}{465
}$

7 0

2 years ago

Plz help me plz f(87) = -590.6 and f(132) = -901.1

quester [9]

Answer:

ididk

Step-by-step explanation:

ddkkdk

4 0

2 years ago

Is the following number rational or irrational?

zubka84 [21]

Answer:

Step-by-step explanation:

Irrational as π is irrational.

7 0

2 years ago

From a group of 3 men and 4 women, a delegation of 2 is selected. What is the expected number of men in the delegation?

Ostrovityanka [42]

Answer:

The expected number of men in the delegation is 0.86.

Step-by-step explanation:

Number of men = 3

Number of women = 4

A delegation of 2 is selected.

Let X be the number of men selected. So, the possible values of X are 0,1,2.

$P(X=0)=\dfrac{^3C_0\times ^4C_2}{^7C_2}=\dfrac{2}{7}$

$P(X=1)=\dfrac{^3C_1\times ^4C_1}{^7C_2}=\dfrac{4}{7}$

$P(X=2)=\dfrac{^3C_2\times ^4C_0}{^7C_2}=\dfrac{1}{7}$

The expected number of men in the delegation is

$E(x)=0\times P(X=0)+1\times P(X=1)+2\times P(X=2)$

$E(x)=0\times \dfrac{2}{7}+1\times \dfrac{4}{7}+2\times \dfrac{1}{7}$

$E(x)=\dfrac{6}{7}$

$E(x)\approx 0.86$

Therefore, the expected number of men in the delegation is 0.86.

4 0

2 years ago