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Shkiper50 [21]
3 years ago
12

Subtract -2x^2-6x from -2x^2+9

Mathematics
1 answer:
Misha Larkins [42]3 years ago
3 0

Answer:

6x + 9

Step-by-step explanation:

- 2x² + 9 - (- 2x² - 6x) ← distribute parenthesis by - 1

= - 2x² + 9 + 2x² + 6x ← collect like terms

= 6x + 9

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Help! Please help!,!
kati45 [8]

Answer:

use the pythagoras theorem ok for 3rd side

i.e. (5.6)²+(3.9)²=c²

7 0
3 years ago
Please explain the problem attached
borishaifa [10]
<h3>Answer:</h3>

F (3x, 3y)

<h3>Explanation:</h3>

Dilation about the origin multiplies each coordinate by the dilation factor. For some coordinates (x, y), dilation by a factor of 3 means the new coordinates are ...

... 3×(x, y) = (3x, 3y)

_____

<em>Comment on the problem</em>

The way the problem is worded, you expect an answer choice that will be specific to the coordinates of point A. There are none.

Instead, the answer choices are generic, corresponding to dilation of a point (x, y) by a factor of 3, translation up and to the right by 3, dilation by a factor of 1/3, and translation down and to the left by 3.

8 0
3 years ago
Positive, negative, zero or undefined?
Orlov [11]
It’s negativeeeeeeeeeeeeeeee
5 0
3 years ago
Calculate the speed of a car that went a distance of 125 miles in 2 hours<br> time.
DerKrebs [107]

Answer:

62.5

Step-by-step explanation:

speed = distance / time taken

= 125/2

=62.5miles per hour

5 0
3 years ago
Which number produces a rational number when added to 0.25
Tatiana [17]

0.65 is the correct one if not up there try 0.45 other possible one

Step-by-step explanation:

A rational number is defined as any number which can be expressed in fractional p/q of two integers, where 'p' is the numerator and 'q' is the denominator. 'q' can never be zero. A rational number can also be expressed as a terminating decimal. So, when 0.25 is added in 0.45 it becomes 0.65 which is rational.

8 0
3 years ago
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