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Vinvika [58]
3 years ago
9

Multiply: (5x − 2)(4x2 − 3x − 2)

Mathematics
1 answer:
fgiga [73]3 years ago
3 0

Answer:

20x3 - 23x3 -4x+4

Step-by-step explanation:

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Really struggling with this, can someone please help me out and give me a brief explanation? Id seriously appreciate it.
Bogdan [553]

Answer:

314 m²

Step-by-step explanation:

the surface area of a sphere (As) is

As = 4×pi×r²

our radius r (half of the diameter) here is 5m.

As = 4×3.14×5² = 4×3.14×25 = 100×3.14 = 314 m²

8 0
2 years ago
Find the distance between the points 3,7 and 15, 12 on the coordinate plane?
lana [24]
\text{Distance } = \sqrt{ (x_2 -x_1)^2 + (y_2 - y_1)^2}

\sqrt{ \left( 15 -  3\right)^2 +  \left( 12 -  7\right)^2}\\\\\sqrt{\left( 12\right)^2  + \left( 5\right)^2}\\\\\sqrt{    144  +   25 }\\\\\\ \sqrt{   169 } = \boxed{\bf{ 13}}
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2 years ago
The area of a rectangle is at least 115 square centimeters. The width of the rectangle is 5 centimeters and the length of the re
Natali [406]
The census is 60 because it’s obviously when you divided
3 0
2 years ago
A puppy and kitten are 180 meters apart when they see each other. The puppy can run at a speed of 25 meters per second, while th
Gnom [1K]

It seems it should be the other way... . How soon will the puppy catch up with the kitten.

The way you have it the kitten will never catch the pup. There is already 180m between them so, the distance will only increase because the puppy runs faster than the cat.

If the puppy runs after the cat, will eventually catch up with it and can be calculated. Not the other way around.

If the pup runs after the cat, the distance between them will decrease and the pup will catch the cat.

RT = D kitten

RT = D+180 puppy

20T = D

25T = D + 180

Substitution

25T = 20T +180

5T = 180

T = 36s

7 0
3 years ago
I Need Help!!<br><br><br> Identify each congruence transformation that maps ABC to DEF
timama [110]

Answer:

A and F

Step-by-step explanation:

Option A works as a transformating, and option a is the same as potion f

6 0
2 years ago
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