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3 years ago

What does -2 + -3 =?

Mathematics

2 answers:

Mice21 [21]3 years ago

6 0

-2+-3=
-2-3=
-(2+3)=
-5

Tema [17]3 years ago

5 0

It's equals -5 because you add both negatives.

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Maksim231197 [3]

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6 0

3 years ago

The product of two rational numbers is (-28/81). If one of them is (-2/3), the find the other.

KatRina [158]

Answer:

The other rational number is $\dfrac{14}{27}$ .

Step-by-step explanation:

First rational number is $\dfrac{-2}{3}$

Let other rational number is $\dfrac{x}{y}$

The product of two rational numbers is $\dfrac{-28}{81}$

According to question,

$\dfrac{x}{y}\times \dfrac{-2}{3}=\dfrac{-28}{81}$

Multiplying both sides by (-3/2) such that,

$\dfrac{x}{y}\times \dfrac{-2}{3}\times \dfrac{-3}{2}=\dfrac{-28}{81}\times \dfrac{-3}{2}\\\\\dfrac{x}{y}=\dfrac{14}{27}$

So, the other rational number is $\dfrac{14}{27}$ .

6 0

3 years ago

Read 2 more answers

A triangle has a base of two to the third power units and a height of chicken fourth power units what is the area of the triangl

kenny6666 [7]

I think you had an auto correct problem

4 0

3 years ago

When solving a system of two linear equations algebraically, how can you tell if the system has exactly one solution?

Artyom0805 [142]

Answer:

ther will be exactly one value. the answer is b

4 0

2 years ago

What does it mean when sampling is done without replacement? Choose the correct answer below. A. Once an individual is selecte

solmaris [256]

Answer:

The correct option is A) Once an individual is selected, the individual cannot be selected again.

Step-by-step explanation:

Consider the provided statement.

Without replacement mean each population sample unit has only one opportunity in the sample to be chosen.

For example:

If a bag contains 5 red and 3 white ball and you randomly select a white ball, the probability of selecting the white ball is 3/8.

Now if the experiment is done by without replacement that means the white ball (which you have selected) is no longer the part of the sample space.

Hence, we can say that once an individual is selected, the individual cannot be selected again.

Thus, the correct option is A) Once an individual is selected, the individual cannot be selected again.

8 0

3 years ago