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kumpel [21]
3 years ago
9

100 POINT QUESTION!!! Please help!

Mathematics
2 answers:
jarptica [38.1K]3 years ago
6 0

Answer:

1) 2.5x³-3.25x²+3.5x-1.5

2) -2x⁶+7x⁴+3x³-3x²+11x+20

Step-by-step explanation:

1) (½x-¼)(5x²-2x+6)

2.5x³-x²+3x-2.25x²+0.5x-1.5

2.5x³-3.25x²+3.5x-1.5

2) (-2x³+x-5)(x³-3x-4)

-2x⁶+6x⁴+8x³+x⁴-3x²-4x-5x³+15x+20

-2x⁶+7x⁴+3x³-3x²+11x+20

Aleksandr-060686 [28]3 years ago
5 0

Answer: Quest 1 final result. (I looked all this up)

(2x -1) * (5x squared - 2x + 6)

_____________________.

4

I could not find the work for part two but I got the answer: x=3,7

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Fantom [35]

Answer:

x = -1.2

Step-by-step explanation:

Th given equation is :

34(x + 4) = 14(x + 8)

Step (A) Distribute 34 on the left side of the equation such as :

34x + 34(4) = 14(x + 8)

34x + 136 = 14(x + 8)

Step (B) Distribute 14 on the right side of the equation such as :

34x + 136 = 14x + 14(8)

34x + 136 = 14x + 112

Step (C) Subtract 14x from each side of the equation.

34x + 136 - 14x = 14x + 112 -14x

20x + 136 = 112

Step (D) Subtract 136 from each side of the equation.

20x + 136 -136 = 112 -136

20x = -24

Step (E) Divide both side by 20

\dfrac{20x}{20}=\dfrac{-24}{20}\\\\x=-1.2

So, the value of x is (-1.2). Hence, steps (D) and (E) are incorrect.

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3 years ago
Solve the inequality
stepladder [879]

Answer:

(2.5+3)

Step-by-step explanation:

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2 years ago
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Answer:

see explanation

Step-by-step explanation:

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given w = 63, then

2l + (2 × 63) = 324

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l = 99 m ← length of garden

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The area of a rectangle = lw ( l is length and w is width )

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8 0
3 years ago
HELP ME PLEASE ASAP!
givi [52]

Answer:

x=28

Step-by-step explanation:

Usually triangles equal 180 so if that's the case then you just add all of the angles together and set it equal to 180. So your equation should be 50+ 2x+ 3x-10= 180 and then solve that equation and you will end up with x=28. Hope this helped!!

5 0
3 years ago
-7x-2y=-13<br> x-2y=11<br><br><br> ***PLS SHOW STEPS***
tino4ka555 [31]

Answer:

Step-by-step explanation:

-7x-2y=-13

x-2y=11

(subtract the first inequality from the second)

-7x-x = -8x

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8 0
2 years ago
Read 2 more answers
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