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yawa3891 [41]
3 years ago
10

Find the value of 7x^2+2x when x=3

Mathematics
1 answer:
frozen [14]3 years ago
8 0

Answer:

69

Step-by-step explanation:

so x2 will give you 9 times 7 which is 63. add it to 2 times 3 which is 63 + 6 will give you 69.

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Fed [463]

Answer:

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Step-by-step explanation:

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3 0
3 years ago
I really need some help
earnstyle [38]

Answer:

CEFA

Step-by-step explanation:

1. p=2(2x)+2(3x+2)=4x+6x+4=10x+4

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3. p=2(7)+2(x+5)=14+2x+10=2x+24

4. p=2(5)+2(4x-3)=10+8x-6=8x+4

Hope this helps

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2 years ago
a tree casts a 13 foot shadow. the distance from the top of the tree to the far end of the shadow is 22 feet. if the tree is per
GenaCL600 [577]
13+B=22
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7 0
3 years ago
The variable z has a standard normal distribution. find the value z such that the event z > z has proportion 0.08. z = –1.41
andrezito [222]

The appropriate choice is z = 1.41.


The empirical rule tells you 68% of the distribution is within 1 standard deviation, so p(z > 1) ≈ 0.17. This means the z value is more than 1 for the probability to drop to 0.08. The only choice that is greater than 1 is 1.41. (The number is actually about 1.40507.)

3 0
3 years ago
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zepelin [54]

Answer:

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Step-by-step explanation:

8 0
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