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g100num [7]
2 years ago
9

Help FAST

Mathematics
1 answer:
zalisa [80]2 years ago
5 0

Answer:

9a^2-4b^2 is the correct answer.

Step-by-step explanation:

Difference of squares can be written as a^2 - b^2. This is equal to (a - b)(a + b)

In your answers, we see, 9a^2 - 4b^2. They are subtracting which is correct. 9 and 4 can also be rooted. 9 to 3 and 4 to 2 so

9a^2-4b^2 can be written as (3a-2b)(3a+2b)

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Cell Phone Company A charges $20 each month plus $0.03 per text. Cell Phone Company B charges $5 each month plus $0.07 per text.
Sidana [21]
Ur equations are :
C = 0.03t + 20...this is company A
C = 0.07t + 5....this is company B

now...for them to be equal...set them equal and solve for t
0.03t + 20 = .07t + 5
-5 + 20 = 0.07t - 0.03t
15 = 0.04t
15/0.04 = t
375 = t.......there would have to be 375 texts

4 0
3 years ago
Ms. Alma where is 86 kg she wants to reduce her body fat by 5% over the next month How many kilograms rounded to the nearest hun
djverab [1.8K]

Answer: 430 rounded so ur answer is 400

Step-by-step explanation:

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4 0
2 years ago
Read 2 more answers
Answer no explantion pls i need asap
irga5000 [103]

Answer:

Below.

Step-by-step explanation:

Area = 5(x + 3)

= 5x + 15

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= 2x + 6 + 10

= 2x + 16.

3 0
2 years ago
Help me please i don't understand this thanks ​
STALIN [3.7K]

Answer:

12.75

Step-by-step explanation:

12.75 rounded to the nearest tenth is 12.8, and 12.74 won't work because it will round to 12.7.

Therefore, 12.75 is the smallest possible number.

6 0
2 years ago
Factor the equation in the picture ​
algol [13]

Answer:

A

Step-by-step explanation:

-5 y^ - I5 y=0

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2 years ago
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