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Mice21 [21]
3 years ago
10

7 times the sum of a squared and b minus 4 times the sum of a squared and b

Mathematics
1 answer:
murzikaleks [220]3 years ago
8 0
7(a^2 + b - (4 + a^2 + b))
i think?
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What is 5.316 - 1.942 (show ur work) Thanks
KATRIN_1 [288]
Answer: 3.374

You subtract 5.316 from 1.942 and get 3.374

Hope this helps :)
4 0
2 years ago
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The scientist creates an equation that models her data for each tree so that she can predict the diameter in the future. Complet
otez555 [7]

Answer:

y = 0.3X + 18.3

Step-by-step explanation:

Given that data :

x = year ;

y = trunk diameter, in inches

Year ________trunk diameter

1 __ 18.6

3 __ 19.2

5 __ 19.8

7 __ 20.4

9 ___21.0

11 __ 21.6

13 __ 22.2

Using the linear regression calculator :

The linear equation obtained is :

y = 0.3X + 18.3

Where ;

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8 0
3 years ago
I need help with this question
julia-pushkina [17]

Answer:

I think its D

Step-by-step explanation:

5 0
3 years ago
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Estimate 25.65 + 13.23 + 6.35 by rounding each number to the nearest tenth.
sergij07 [2.7K]

Answer:

  • b. 25.7 + 13.2 + 6.4 = 45.3

Step-by-step explanation:

25.65 ≈ 25.7, 13.23 ≈ 13.2, 6.35 ≈ 6.4

  • 25.65 + 13.23 + 6.35 =
  • 25.7 + 13.2 + 6.4 =
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Correct choice is b.

5 0
3 years ago
Which measure represents the standard deviation of the sample means and is used in place of the population standard deviation wh
Ksivusya [100]

The measure represents the standard deviation of the sample means and is used in place of the population standard deviation when the population parameters are unknown is; t-test.

<h3>Which measure is used when the population parameters are unknown?</h3>

A hypothesis test for a population mean when In the case that the population standard deviation, σ, is unknown, carrying out a hypothesis test for the population mean is done in similarly like the population standard deviation is known. A major distinctive property is that unlike the standard normal distribution, the t-test is invoked.

Read more on t-test;

brainly.com/question/6501190

#SPJ1

4 0
2 years ago
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