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Oksi-84 [34.3K]
2 years ago
15

<

Mathematics
1 answer:
irinina [24]2 years ago
8 0

Answer:

Step-by-step explanation:

Remark

f(x) = 9x^2 - 5x + 3 is given. The notation means that wherever you see and x on the right, you replace it with the x in the brackes on the left. f(3) is a direction, not anything you have to adjust or manipulate.

Solution

f(-3) = 9*(-3^2) - 5*(-3) + 3       (-(3))^2 = -3 * -3 = 9  two minuses make a +

f(-3) = 9*(-3)(-3) + 15 + 3          -3 times an operation of minus equals a +

f(-3) = 9 * 9 + 15 + 3

f(-3) = 81 + 15 + 3

Answer: f(-3) = 99

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Allisa [31]

Answer:

3 1/4 + 2x ≥ 6

Step-by-step explanation:

Let X equal the remaining time she needs to practice.

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You need to add the amount she already practiced to 2x.

Now you have: three and one fourth + 2x

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I hope this helps you :)

6 0
3 years ago
I need help im not understanding how to do this
galina1969 [7]

Answer:

(c, b)

Step-by-step explanation:

Add the coordinates together and divide by 2

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3 0
2 years ago
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The diameter of a circle is 10 cm what is the angle measure of an arc Pi centimeters long
vredina [299]
We know that

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X=pi*360/10*pi------> 36°

the answer is 36°
8 0
3 years ago
PLEASE HELP MATH
Novosadov [1.4K]
I believe C is your answer. 
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the cheese that ms.carter used to buy costs $6.00 per pound, but it's been marked up to 15%. suppose ms.carter buys 3.5 pounds o
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