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Sergeu [11.5K]
3 years ago
12

Help!

Mathematics
1 answer:
RideAnS [48]3 years ago
5 0

Answer:

14 units

Step-by-step explanation:

BE = 10x-3

DE = 8x -1

In a parallelogram, diagonals meet each other at their center points:

BE = DE

10x - 3 = 8x -1

2x = 2

x  = 1

The length BD = BE + DE = 18x -4 = 18*1 -4 = 14 units

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Help me with this plz
Dmitrij [34]

Answer:

the third one

Step-by-step explanation:

We can break it up into (-8*3)*(x*x^2). This means that it is -24*x^3, or -24x^3

7 0
3 years ago
Which of the following factors influences a consumer when deciding to buy a
OlgaM077 [116]

Answer:

c.

Step-by-step explanation:

4 0
3 years ago
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What is the volume of a rectangle prism that is 1 1/2 inches by 2 1/4 inches by 4 inches?
Reptile [31]

Answer:

13.5 inches

Step-by-step explanation:

11.5 x 2.25 x 4

I could be wrong

7 0
2 years ago
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ASAP! I really need help with this question! No nonsense answers, and please attach the solution.
uysha [10]

Answer:

\boxed{\sf Option \ 4}

Step-by-step explanation:

\sqrt{2x-3} +x=3

Subtract x from both sides.

\sqrt{2x-3} +x-x=-x+3

\sqrt{2x-3}=-x+3

Square both sides.

( \sqrt{2x-3})^2 =(-x+3)^2

2x-3=x^2-6x+9

Subtract x²-6x+9 from both sides.

2x-3-(x^2-6x+9 )=x^2-6x+9-(x^2-6x+9)

-x^2 +8x-12=0

Factor left side of the equation.

(-x+2)(x-6)=0

Set factors equal to 0.

-x+2=0\\-x=-2\\x=2

x-6=0\\x=6

Check if the solutions are extraneous or not.

Plug x as 2.

\sqrt{2(2)-3} +2=3\\ \sqrt{4-3} +2=3\\\sqrt{1} +2=3\\3=3

x = 2 works in the equation.

Plug x as 6.

\sqrt{2(6)-3} +6=3\\ \sqrt{12-3} +6=3\\\sqrt{9} +6=3\\3+6=3\\9=3

x = 6 does not work in the equation.

5 0
3 years ago
Read 2 more answers
What is the general rule for the arithmetic sequence? 15, 12, 9, 6, … A. 3n – 18 B. 6(3 – n) C. 3n + 12 D. 18 – 3n
slavikrds [6]
A1 = first term
a1 = 15
---------------------------------------------
d = common difference 
d = (second term) - (first term)
d = a2 - a1
d = 9-12
d = -3
The negative common difference indicates that the terms are decreasing
Each time we subtract 3, or add -3, to get the next term.
----------------------------------------------
nth term of arithmetic sequence
an = a1 + d(n-1)
an = 15 + (-3)(n-1)
an = 15- 3n + 3
an = 18 - 3n

Answer is choice D
3 0
3 years ago
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