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3 years ago

What is the property of combining negative and positive numbers

Mathematics

1 answer:

vodomira [7]3 years ago

4 0

Answer:

The answer will always be negative

Step-by-step explanation:

The rule is if you multiply positive by positive it will equal positive.

If you multiply negative and negative it will equal positive.

But if you multiply negative and positive it will equal negative.

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Triangle RST was transformed using the rule (x, y) → (–x, –y). The vertices of the triangles are shown.

natta225 [31]

Answer:

Correct answer is:

The transformation was a 180° rotation about the origin.

Step-by-step explanation:

Given the triangle RST formed by points:

$R (1, 1),\\S (3, 1)\ and\\T (1, 6)$

is transformed using (x, y) → (–x, –y) such that coordinates of triangle R'S'T' :

$R' (-1, -1),\\S' (-3, -1)\ and\\T' (-1, -6)$

Please refer to the attached image for the given dimensions and coordinates.

It is clearly visible that:

The given triangle RST has coordinates in first quadrant.

and the resulting coordinates R'S'T' are in third quadrant.

The rotation of angle from 1st quadrant to 2nd quadrant is $90^\circ$ and

The rotation of angle from 2nd quadrant to 3rd quadrant is $90^\circ$ .

$\therefore$ total rotation is $180^\circ$ .

8 0

3 years ago

Grains of sand are very small, there being about 3000 grains in one cubic centimeter (cm3) of sand. A cm3 is a small cube measur

Anastasy [175]

Answer:

The value is $x = 3.000 * 10^9 \ grains$

Step-by-step explanation:

From the question we are told that

$1m^3 = 10^6 cm^3$

And that

$3000 \ grains \ of \ sand \ is \ in \ 1cm^3$

So the number of sand grain that is in $1m^3$ is mathematically evaluated as

$x = 3000 * 10^6 \ grains$

=> $x = 3.000 * 10^9 \ grains$

4 0

3 years ago

The square of a non-zero number is equal to 70% of the original number. What

aleksandr82 [10.1K]

Answer:

0.7.

Step-by-step explanation:

x^2 = 0.7x

x^2 - 0.7x = 0

x(x - 0.7) = 0

x = 0, 0.7.

3 0

2 years ago

What is the name given to this pair of angles?

poizon [28]

They are corresponding angles.

3 0

3 years ago

X=5y 3x=7y+16 substitution method, algebra 1

Korolek [52]

3x=7y+16
15y=7y + 16
15y - 7y = 16
8y = 16
y = 8/16
y = 2
hope this helps you !!! =')

7 0

3 years ago