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4 years ago

When x = 3 and y = 5, what is the value of 3x2 - 2y?

Mathematics

2 answers:

Vanyuwa [196]4 years ago

6 0

Answer: 8

Hope this helps :)

Mumz [18]4 years ago

4 0

Answer:

Step-by-step explanation:

3 times 3 is 9

2 yimes 5 is 10

9 times 2 is 18

18-10 is 8

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Please help me for the brainliest answer

Zinaida [17]

Answer:

$5n^2$

Step-by-step explanation:

This is a quadratic sequence.

The nth term must have $n^2$ .

The sequence has a factor of $5$ .

$5n^2$

$5(1)^2=5\\5(2)^2=20\\5(3)^2=45\\5(4)^2=80\\5(5)^2=125$

Few terms to this sequence are:

5, 20, 45, 80, 125, 180, 245, 320, 405, 500, 605, 720, 845, 980, 1125, 1280, 1445, 1620, 1805, 2000, 2205, 2420, 2645, 2880, 3125, 3380, 3645, 3920, 4205, 4500, 4805, 5120, 5445, 5780, ...

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4 years ago

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Butoxors [25]

Answer:

Step-by-step explanation:

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3 years ago

Given: -1/2x > 6.<br><br> Choose the solution set.

kompoz [17]

Answer:

x < -12

Step-by-step explanation:

-1/2x > 6

Multiply by -2 to isolate x

Remember that when multiplying by a negative, we flip the inequality

-2 * -1/2x < 6*-2

x < -12

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3 years ago

Which table of ordered pairs matches the following function?<br><br> y=-1/2x - 1

abruzzese [7]

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Step-by-step explanation:

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Sydney bought 5.65 lbs of roast beef, which was on sale for $4.50 per pound. if she divides the roast beef evenly among 6.5, how

Sever21 [200]

Okay. So, she buoyant 5.65 lbs of roast beef for $4.50. Multiply both of those numbers to get 25.425 or 25.43 when rounded to the nearest hundredth. So the total cost was $25.43. However, we now have to divide the amount by 6.5. 25.43/6.5 is 3.912 and other odd numbers or 3.91 when rounded to the nearest hundredth. The cost per sandwich was $3.91.

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3 years ago

When x = 3 and y = 5, what is the value of 3x2 - 2y?​

When x = 3 and y = 5, what is the value of 3x2 - 2y?