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poizon [28]
3 years ago
14

Can someone please help me on the last two . I would appreciate it so much

Mathematics
1 answer:
cricket20 [7]3 years ago
3 0

Answer:

It's 1, 1.25, 1.2

Step-by-step explanation:

How about here, just type it in the question

And for the last one, I believe it's the 1,600 one (If not i'm SO sorry, i don't know how to make it up)

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Which expression is equivalent to x2(3x3−2x)−(−7x3+2) ? 3x5+5x3−2 3x5−9x3+2 3x5+7x3−2x+2 3x6+7x3−2x2−2
erik [133]

Answer:

The equivalent expression is 3x^5-9x^3-2

Step-by-step explanation:

To find the equivalent expression, we need to

open up the brackets;

Thus;

x^2(3x^3 -2x) - (7x^3 + 2)

= 3x^5 -2x^3 -7x^3 -2

= 3x^5 -9x^3-2

6 0
3 years ago
Help mee!! I will give a branlist answer!!
Nutka1998 [239]
Ok so here u go
<span>Simplifying 6(2x + -11) + 15 = 21        Reorder the terms: 6(-11 + 2x) + 15 = 21 (-11 * 6 + 2x * 6) + 15 = 21 (-66 + 12x) + 15 = 21         Reorder the terms: -66 + 15 + 12x = 21       Combine like terms: -66 + 15 = -51 -51 + 12x = 21     Solving -51 + 12x = 21 Solving for variable 'x'.          Move all terms containing x to the left, all other terms to the right. Add '51' to each side of the equation. -51 + 51 + 12x = 21 + 51 Combine like terms: -51 + 51 = 0 0 + 12x = 21 + 51 12x = 21 + 51       Combine like terms: 21 + 51 = 72 12x = 72 Divide each side by '12'. x = 6 Simplifying x = 6</span>
4 0
3 years ago
6) Add or subtract:<br> a) (4x® - 5x + 15) - (11 - 7x - 2x)<br> b)(9x- 6x® - 7x-2) + (10x - 8x + 11)
Marat540 [252]

Answer:

a) (4x® - 5x + 15) - (11 - 7x - 2x)

b)(9x- 6x® - 7x-2) + (10x - 8x + 11)

Step-by-step explanation:

a) (4x® - 5x + 15) - (11 - 7x - 2x)

b)(9x- 6x® - 7x-2) + (10x - 8x + 11)

6 0
3 years ago
What is the volume of the following rectangular prism
zloy xaker [14]

Answer:

The volume of the rectangular prism is 7/8 u³

Step-by-step explanation:

1/2 u² = 0.5 u²

1 3/4 u = 1.75 u

To calculate the volume of a rectangular prism we have to use the following formula:

a = area = 0.5 u²

v = volume

h = height  = 1.75 u

v = a * h

we replace the values that ​​we know        

v = 0.5 u²  * 1.75 u

v = 0.875 u³ = 7/8 u³

The volume of the rectangular prism is 7/8 u³

5 0
3 years ago
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SOVA2 [1]

Answer:

8.15

Step-by-step explanation:

8 0
3 years ago
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