All categories

3 years ago

Match the terms to their definition.

Mathematics

1 answer:

givi [52]3 years ago

4 0

Answer:

1. The number zero (0) is the additive identity for real numbers as adding it to any real number doesn't change the number.

2. a(b+c) = ab + ac or a(b-c) = ab-ac is the distributive property as a is distributed to b and then c.

3. An Equation with more than one variables is called literal equation. The variables are known in literal equations. These kind of equations are usually used to represent time, distance etc.

4. The number 1 is the multiplicative identity for real numbers as multiplying any real number with 1, other than zero, doesn't change the number.

5. The reciprocal of a number such that x is a number other than zero and 1/x is the reciprocal and the product of x and 1/x is equal to 1 then 1/x is called the multiplicative inverse of x.

You might be interested in

-0.25 + 3 1/6 + 2 1/12<br> plz help me with this.

hjlf

Answer:

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Miss Robinson and Miss Gibson recorded the hours and distance they drove their results formed ratios presented in the tables Bel

Ludmilka [50]

Where are the tables and what are the ratios?

6 0

3 years ago

Which of the numbers below is not only a natural number, but also a whole number, a rational number, and an integer?

Korolek [52]

Its d bro
.
.
.
.
.
.
. Trust me im good at math

6 0

2 years ago

Add.

MrRissso [65]

Answer:

letter A) 7x² + 2x -3

Step-by-step explanation:

7x² -2x + 4x -3

7x² + (-2x + 4x ) -3

7x² + 2x -3

6 0

3 years ago

It is advertised that the average braking distance for a small car traveling at 75 miles per hour equals 124 feet. A transportat

Morgarella [4.7K]

Answer:

$z=\frac{112-124}{\frac{22}{\sqrt{37}}}=-3.318$

The p value would be given by this probability:

$p_v =2*P(z$

Since the p value is a very small value at any significance level used we can reject the null hypothesis and we can conclude that the true mean for this case is different from 124 ft

Step-by-step explanation:

Data given and notation

$\bar X=112$ represent the sample mean

$\sigma =22$ represent the population standard deviation

$n=37$ sample size

$\mu_o =124$ represent the value that we want to test

z would represent the statistic (variable of interest)

$p_v$ represent the p value

Hypothesis to test

We want to check the following system of hypothesis:

Null hypothesis: $\mu = 124$

Alternative hypothesis : $\mu \neq 124$

The statistic is given by:

$z=\frac{\bar X-\mu_o}{\frac{\sigma}{\sqrt{n}}}$ (1)

Replacing the info given we got:

$z=\frac{112-124}{\frac{22}{\sqrt{37}}}=-3.318$

The p value would be given by this probability:

$p_v =2*P(z$

Since the p value is a very small value at any significance level used we can reject the null hypothesis and we can conclude that the true mean for this case is different from 124 ft

6 0

4 years ago