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Anna [14]
2 years ago
13

The Petri dish shown has no lid. What is the surface area of the outside of the Petri dish?

Mathematics
1 answer:
Nata [24]2 years ago
3 0

Answer: (not enough information) Is there a picture that goes along with the problem?

Step-by-step explanation:

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Write the equation of the plane with normal vector n = 1, 3, 4 passing through the point (4, −1, 3) in the scalar form ax + by +
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Try, pls, this solution (see the attachment).

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3 years ago
Joris pays 8% sales tax on a backpack that costs 68 dollars. How much does the sales tax add to the purchase price?helpppppp
miv72 [106K]

Answer:

$5.44

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
All three please 10 points
GaryK [48]

Answer:

A) x = 3 or -1

B) x = -7

C)x = -7

Step-by-step explanation:

A) x² + 2x + 1 = 2x² - 2

Rearranging, we have;

2x² - x² - 2x - 2 - 1 = 0

x² - 2x - 3 = 0

Using quadratic formula, we have;

x = [-(-2) ± √((-2)² - 4(1 × -3))]/(2 × 1)

x = (2 ± √16)/2

x = (2 + 4)/2 or (2 - 4)/2

x = 6/2 or -2/2

x = 3 or -1

B) ((x + 2)/3) - 2/15 = (x - 2)/5

Multiply through by 15 to get;

5(x + 2) - 2 = 3(x - 2)

5x + 10 - 2 = 3x - 6

5x - 3x = -6 - 10 + 2

2x = -14

x = -14/2

x = -7

C) log(2x + 3) = 2log x

From log derivations, 2 log x is same as log x²

Thus;

log(2x + 3) = logx²

Log will cancel out to give;

2x + 3 = x²

x² - 2x - 3 = 0

Using quadratic formula, we have;

x = [-(-2) ± √((-2)² - 4(1 × -3))]/(2 × 1)

x = (2 ± √16)/2

x = (2 + 4)/2 or (2 - 4)/2

x = 6/2 or -2/2

x = 3 or -1

5 0
3 years ago
3x = 8x – 5 es para mañana
Volgvan

Answer:

x=1

Step-by-step explanation:

3x=8x-5

-8x -8x

-5x=-5

divide by -5 on each side

x=1

5 0
2 years ago
Read 2 more answers
2a2b3 and -4a2b3 are like terms.<br> a. True<br> b. False
Trava [24]
2a²b³ and -4a²b³ are like terms as they both have the same variables with the same degrees.

Your final answer is a. True.
4 0
2 years ago
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