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liq [111]
3 years ago
12

Evaluate 3x2 - 4 when χ= 2. Α. 2 Ο Ο Ο Ο Β. 8 C. 12 Ο D. 32

Mathematics
1 answer:
solniwko [45]3 years ago
3 0

Answer:

D. 32.

Step-by-step explanation:

3x^2 - 4\\= 3^2 * 2\\= 6^2 - 4\\= 36 - 4\\= 32.

hope this helps.

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3. Michelle wants to save at least $3,500. She has already put away
algol [13]

The equation that represents the scenario is 3500 < 360w + 600.

<h3>What is the equation that represents the scenerio?</h3>

Here are inequality signs and what they mean:

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  • ≥ means greater than or equal to
  • ≤ less than or equal to

Total amount Michelle wishes to save < total amount already saved + (number of weeks x amount made weekly)

$3500  < $600 + ($360w)

To learn more about inequality, please check: brainly.com/question/5031619

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2 years ago
If it takes 1 second for sound to travel 1.5 km how much km will it travel in 3.7 second
kirza4 [7]
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3 years ago
A table is on sale for 464 , which is 36% less than the regular price.
viva [34]
The original price was 725.
Explanation:
"36% less than" means taking 36% away from 100%. 100-36 is 64, so 64% remains when 36% is taken away. So, 64% of the original table's price is 464.
So, if the original price was x, 464=0.64x
Solve this by dividing both sides by 0,64:
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3 0
4 years ago
What is the surface area of the cylinder 
MaRussiya [10]

Answer:

224π

Step-by-step explanation:

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14 ft is the diameter, so 7 ft would be the radius (r).

9 ft is the height (h).

Substitute in your values.  2π x 7 x 9 + 2π7^{2}  = 703.717 or 224π

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