What is the difference if the negative is in parenthesis or if it is not in parenthesis

Answers

Answer 1

Answer: For number 19, when you see the parenthesis, you must look at everything that’s inside and then square it, as you have done correctly. Without the parenthesis like in number 18, you are only looking at squaring the number 3 as it is the only number directly attached to the square. 3 squared is 9 and then take into account the negative. It would be like multiplying by a negative 1. The final answer would be -9 in this case. Hope this helps! :)

Answer 2

Answer: Hey!
For number 18, it is actually -9 because the negative is not included in the parenthesis.
That means that the - and 3 are not connected. So the square is only for the 3 in this case.
FOr 19, it is 9 because there are parenthesis.
In this case the - and 3 are connected and the square is for the -3. If it is in parenthesis then the number is contained and the square sign will Make is -3 * -3 instead of 3*3

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Three measurements with different units equal to 5m

Answers

Well, there are

100 cm per meter
and
1000 mm per meter

so how about...

100cm+1000mm+3m = 5m

The question is in the picture pls help!!!

Answers

Answer:

it's the 4th one

Step-by-step explanation:

Because ab is not negative but c has the negative sign in front of it

the answer would be “one integer is positive and one integer is negative”

EXPLANATION:
1.) if both integers are positive they will be positive
2.) if both integers are negative they will be positive
!! SAME SIGNS = POSITIVE !! FOR MULTIPLICATION AND DIVISION
3.) one integer is zero and other is negative would mean the answer is 0 and 0 has no sign
4.) is correct because different sign = positive (for multiplication and division)

hope that helps!!! pls mark brainliest if u can or want :)

how can you tell whether the percent of a number will be greater than, less than, or equal to the number

Answers

If the value of a percentage of a number is less than 100%, then the percentage will be smaller than the original number. If the value of the percentage is 100%, then the percentage will be equal to the original number. If the value of the percentage is greater than 100%, the percentage will be greater than the original number.
Hope that helped! =)

Answer:

. If the percent is

less than

100%, then the percent of a number is less than the number.

B. If the percent is

equal to

100%, then the percent of a number is greater than the number.

C. If the percent is

greater than

100%, then the percent of a number is equal to the number.

Step-by-step explanation:

What is 25/30 + 10/30 (25/30 + 10/30 is fraction)I need the answer bc tomorrow is school and where gonna give the homework to or teacher

Answers

Step-by-step explanation: To simplify the expression 25/30 + 10/30, we first need to find a common denominator. The least common multiple of 30 and 30 is 30 itself, so we can multiply all the fractions by 30. This gives us:

(25/30)(30/30) + (10/30)(30/30) = 75/90 + 10/90

Next, we add the fractions:

75/90 + 10/90 = 85/90

Therefore, 25/30 + 10/30 = 85/90.

Answer:

Step-by-step explanation:

25/30+10/30

Reduce the fraction

to lowest terms by extracting and canceling out 5.

Reduce the fraction

to lowest terms by extracting and canceling out 10.

Least common multiple of 6 and 3 is 6. Convert

and

to fractions with denominator 6.

Since

and

have the same denominator, add them by adding their numerators.

5+2

Add 5 and 2 to get 7.

Please help me, i really don't understand this

Answers

Answer:

Look in the comments on your question for some guidance if you please to.

Step-by-step explanation:

Tomaz realized that the tip of a second hand on a clock rotates about the center of the clock. He watched the second hand rotate around the center of the clock for 15 seconds. Which describes the rotation he observed? 270 clockwise rotation
90 clockwise rotation
180 rotation
90 counterclockwise rotation

Answers

Second hand on a clock rotates at rate 360 degrees per 60 seconds.

360 degrees - 60 sec
x degrees - 15 sec

$x=(15\cdot360)/(60)\nx=15\cdot6\nx=90$

90 clockwise rotation (none hand of a clock rotates counter-clockwise :))

In this exercise we will use the knowledge of rotation and find that the necessary rotation is 90 clockwise rotation.

To make the rotation calculations we will have to perform a rule of 3 where we will have the clock seconds and the angle formed by the hand, this can be described as:

$360 \ degrees \rightarrow 60 sec\nx \ degree \rightarrow 15 sec$

When performing this rule of 3 we will find 90 clockwise rotation

See more about rotation at brainly.com/question/1571997

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