All categories

3 years ago

If f(x) = -3x - 5 and g(x)= 4x - 2, find (f-g) (x).

Mathematics

1 answer:

Eddi Din [679]3 years ago

4 0

Answer:

$-7x-3$

Step-by-step explanation:

$(f-g)(x)$ just means $f(x)-g(x)$ .

$-3x-5-(4x-2)\\-3x-5-4x+2\\-7x-3$

You might be interested in

A large company wants to admiister a satisfaction survey to its current customers. using their customer database the company rad

djyliett [7]

Answer:

The sampling used is simple random sampling.

Step-by-step explanation:

Consider the provided information.

Types:

Simple random sample is a subset of the population chosen from a larger set. Every person is selected by chance and randomly.
Systematic sampling: list of elements is counted off.
Convenience sampling: data which is readily available is used. That is, the first people are running into by the surveyor.
Cluster sampling: divide the population into groups, usually geographically.
Stratified sampling: divide population into groups called strata. but this time population might be separated into males and females.

Here, randomly selected 60 customers, Thus, the sampling used is simple random sampling.

7 0

3 years ago

Determine which ordered pair is a solution of y=8X

Amanda [17]

<span>A.(0,8) B.(-1,8) C.(1.5,10) D.(2,16)

Simply substitute the value of x to get the value of y.

y = 8x

(0,8) y = 8(0) ; y = 0

(-1,8) y = 8(-1) ; y = -8

(1.5,10) y = 8(1.5) ; y = 12

(2,16) y = 8(2) ; y = 16

The correct ordered pair is D. (2,16)</span>

5 0

3 years ago

1. Write an addition equation, a subtraction equation, and a multiplication equation that has -2 as a solution. Solve each equat

Sphinxa [80]

5 + -7 = -2
5 - 7 = -2
-1 x 2 = -2

7 0

3 years ago

162 divided by [6 (7-4)^2 by the way the 2 is a exponent

r-ruslan [8.4K]

162/(6(7-4)^2)
pemdas
parenthasees inner first
so 7-4 is forst
7-4=3
162/(6(3)^2)
then exponents
3^2=9
162/(6(9))
multiplication
6 times 9=54
162/(54)=3

8 0

3 years ago

Lengths of full-term babies in the US are Normally distributed with a mean length of 20.5 inches and a standard deviation of 0.9

mash [69]

Answer:

66.48% of full-term babies are between 19 and 21 inches long at birth

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the z-score of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

Mean length of 20.5 inches and a standard deviation of 0.90 inches.

This means that $\mu = 20.5, \sigma = 0.9$