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3 years ago

Round 3586 to the nearest 10

1 answer:

7 0

The answer is 3590.

Remember, if the last number 5, 6, 7, 8, or 9 you round up. If the last number is 1, 2, 3, or 4 you round down. If the last number is 0 you don't need to round any way because it's already to the ten.

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20. Factor the expression. ^2 + 7 + 12

neonofarm [45]

Answer: x^2 + 19

Step-by-step explanation: Cancel out x^2 and add 7 and 12 together. 7 + 12 = 19. Next plug in x^2. So, its now x^2 + 19.

Hope this help!

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3 years ago

Read 2 more answers

Will mark brainliest for whoever answers

Veseljchak [2.6K]

I can add u to a snap gc where we help each other with work

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2 years ago

Need help with this 8/4+3/4=?

ANEK [815]

Answer:

11/4 or 2 3/4

Step-by-step explanation:

add numerators keep the same denominator

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3 years ago

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See if you can answer this brainbop72

77julia77 [94]

Answer:

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3 years ago

Two owners of a cattle ranch, Jo and Val, want to find the average weight for the ranch's 200 cows. Instead of weighing all of t

Zolol [24]

Answer:

The value is $E =19.6$

Step-by-step explanation:

From the question we are told that

The mean of Jo cows is $\= x_1 = 1350$

The standard deviation of Jo cow is $s_1 = 50$

The mean of Val cows is $\= x_2 = 1420$

The standard deviation of Val cows is $s_2 = 50$

The sample size for both Val and Jo is n = 25

Let assume that the level of significance is $\alpha = 0.05$

Generally from the normal distribution table the critical value of $\frac{\alpha }{2}$ is

$Z_{\frac{\alpha }{2} } = 1.96$

Generally the margin of error is mathematically represented as

$E = Z_{\frac{\alpha }{2} } * \frac{\sigma }{\sqrt{n} }$

Hence margin of error for Jo is

=> $E = 1.96 * \frac{50}{\sqrt{25} }$

=> $E =19.6$

4 0

2 years ago