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KengaRu [80]
2 years ago
5

What is the solution for tgx >=0?

Mathematics
1 answer:
ddd [48]2 years ago
7 0

well, what variable are you solving for? like if you're solving for x, it would be:

tg is greater than or equal to 0x

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What has she done wrong?
Strike441 [17]

Answer:

see explanation

Step-by-step explanation:

Her error is in squaring (2y)²

She has (2y)² = 2y²

when it should be 2y × 2y = 4y²

Then

(2y)² = 6² + 8²

4y² = 36 + 64

4y² = 100 ( divide both sides by 4 )

y² = 25 ( take square root of both sides )

y = \sqrt{25} = 5

8 0
2 years ago
A book is on sale for $6 off of the regular $24 price. What percent is the discount? [Type your answer as a number.]
sattari [20]

Answer:

14.4

Step-by-step explanation:

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*Hope this helps*

8 0
3 years ago
Read 2 more answers
a marrow plants 0.5 m long. every week it grows by 20%. a find the value of the common ratio. b calculate how long the plant is
OLga [1]

Answer:

The common ratio is 1.2.

After 12 weeks the plant will be 4.46 meters long.

After one year the plant will be 6,552.32 meters long.

Step-by-step explanation:

Given that a marrow plants 0.5 m long and every week it grows by 20%, to find the value of the common ratio, calculate how long the plant is after 12 weeks and comment on the predicted length of the marrow after one year must be performed the following calculations:

0.50 x 1.2 ^ X = Y

Therefore, the common ratio is 1.2.

0.50 x 1.2 ^ 12 = Y

0.50 x 8.916 = Y

4.4580 = Y

Therefore, after 12 weeks the plant will be 4.46 meters long.

0.50 x 1.2 ^ 52 = Y

0.50 x 13,104.63 = Y

6,552.32 = Y

Therefore, after one year the plant will be 6,552.32 meters long.

5 0
2 years ago
Express the series using sigma notation.<br><br> 4 + 16 + 64 + 256 + 1,024
Hatshy [7]

Answer:

EASSYYY

Step-by-step explanation:

1364

3 0
2 years ago
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The area of the curved surface of a cylindrical can is 162 π square centimeters and it’s height is 9 centimeters. What is the di
asambeis [7]

Answer:

Diameter of the can = 18 Cm

Step-by-step explanation:

Given:

Curved surface of cylindrical can = 162\pi

Height of cylindrical can = 9 Cm

Find:

Diameter of the can = ?

Computation:

Curved surface of cylindrical can = 2\pirh

162\pi  = 2\pi rh\\\\\frac{162\pi }{2\pi }=  r\times 9\\\\81 =  r\times 9\\\\\frac{81}{9}=r

r=9 Cm

Diameter of the can = 2×r

Diameter of the can = 2×9 Cm

Diameter of the can = 18 Cm

8 0
3 years ago
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