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Marina CMI [18]
2 years ago
7

Help! Need answers fast!

Mathematics
2 answers:
Zielflug [23.3K]2 years ago
5 0
A.) -12x^2
I’m pretty sure that’s it
natulia [17]2 years ago
4 0

Answer:

It should be A. -12^2

Step-by-step explanation:

Looking at the box B, you have to multiple 3x and -4x. 3 * -4 is -12 and the two x's become squared. Making your answer -12x^2

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Plssss help plssssss
OverLord2011 [107]

Answer:

True

Step-by-step explanation:

Just compare the numbers to the dots.

I hope this helps!

pls ❤ and give brainliest pls

5 0
2 years ago
Read 2 more answers
<Q and <R are complementary angles. If m<Q = (31 - 3x)° and m<R = (19x - 5)°, find m<R​
Sergio [31]

31-3x+19x-5=90

26+16x=90

-26 -26

--------------------

16x= 64

16x/16= 64/16

x=4

m <R=19 (4)-5= 71.

7 0
3 years ago
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A scatterplot has a positive, linear correlation. Which statement is true about the relationship between the x- and y-values?
Yuki888 [10]
B. As the x-values increase, the y- valuebtend to decrease.
5 0
3 years ago
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Please help!<br> 5x^2 - 3x - 2 = 0<br> Solve using the zero-factor property.
Alex

Answer:

x = -2/5

x = 1

Step-by-step explanation:

5x² - 3x - 2 = 0

(5x + 2)(x - 1) = 0

⇒ 5x + 2 = 0

⇒ 5x = -2

⇒ x = -2/5

⇒ x - 1 = 0

⇒ x = 1

7 0
2 years ago
An open box is to be made from a square piece of cardboard, 18 inches by 18 inches, by removing a small square from each corner
seraphim [82]

The dimension of the box of the greatest volume that can be constructed in this way is 12x12x3 and the volume is 432.

<h3>How to solve the dimension?</h3>

Let x be the side of the square to remove. Then the volume of the box is:

V(x) = (18 - 2x)² * x = 324x - 72x² + 4x³

To find the maximum volume, differentiate and set it to 0:

V'(x) = 324 - 144x + 12x²

0 = x² - 12x + 27

0 = (x - 9)(x - 3)

x = 3 or 9

When x = 3,

V"(x) =-144+24x

V"(3) =-144+72=-72<0

so volume is maximum at x=3

Therefore the box is 12x12x3 and the volume is 432.

Learn more about dimension on:

brainly.com/question/26740257

6 0
2 years ago
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