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Llana [10]
2 years ago
12

HELP HELP PLEASE!!! <3

Mathematics
2 answers:
zmey [24]2 years ago
4 0
12 x 12 = 144, 144 x 3 and then subtract 5 to get 427
ArbitrLikvidat [17]2 years ago
4 0

Answer:

427

Step-by-step explanation:

f(x)=3x^2-5

f(x)=3(-12)^2-5=427

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eduard
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3 years ago
Simplify the following expression.<br> ?<br> 9t2 + 7t + 4 - 2t2 + 5t
Katen [24]

Answer:

I'm assuming the 2 after 9t and -2t means squared.

7t² + 12t + 4

Step-by-step explanation:

To simplify the expression we should combine like terms. Like terms are terms with same variables and powers.

Let's start with 9t² and -2t² since they have the same variable and power of t². To combine them we should add them together which would be: 9t² + (-2t²) = 9t² - 2t² = 7t²

Next we can combine 7t and 5t since they have the same variable and power of t. 7t + 5t = 12t

4 doesn't have any like terms so we leave it as it is.

Lastly we add all of our terms: 7t² + 12t + 4

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2 years ago
If a square garden has a perimeter of 20 yards, what is its area?
olga_2 [115]

Answer:

25p

Step-by-step explanation:

3 0
2 years ago
there are 3 liters of orange juice at a school party. 10 students want to drinkable of the orange juice, and they all want to ge
Softa [21]

Answer:

Each student gets 0.3 liters or 300 milliliters of orange juice.

Step-by-step explanation:

3 liters = 3000 milliliters

3L/10 or 3000ml/10 = 0.3 L or 300 ml

7 0
2 years ago
Find the constant of proportionality that creates a direct proportion between x and y,
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Answer:

y=x

Step-by-step explanation:

Something that would create a direct proportionality is y=x because both of them are in an equation which means they are directly proportional

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3 years ago
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