3 years ago

10

Mathematics

1 answer:

Zina [86]3 years ago

5 0

Answer:

on edge

Step-by-step explanation:

The tree increased in height each month until the time period between month 9 and month 11

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Find the sum of (x + 5) and (2x + 3) * A) 9x + 1 B) 5x + 2 C) 8x + 3 D) 3x + 8

KatRina [158]

Answer:

Step-by-step explanation:

We know that we are adding the two expressions because the question says "sum" which means that we need to add. Let's combine like terms. We know that x + 2x = 3x and 5 + 3 = 8 so the answer is 3x + 8.

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3 years ago

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In a random sample, 10 students were asked to compute the distance they travel one way to school to the nearest tenth of a mile.

elixir [45]

Answer:

Mean = 3.12, Variance = 3.324, Standard deviation = 1.8232

Step-by-step explanation:

Total number of students = 10 students.

Given data, 1.1, 5.2, 3.6, 5.0, 4.8, 1.8, 2.2, 5.2, 1.5, 0.8

To find the mean, at first we have to take the sum of all given data and then divide with the number of students.

Let the data is X, = 1.1, + 5.2, + 3.6, + 5.0, + 4.8, + 1.8, + 2.2, + 5.2, + 1.5, + 0.8 = 31.2

Mean = 31.2 / 10 = 3.12

$\text{Standard deviation, S} = \sqrt{\frac{\sum x^{2} - \left [ (\sum x)^{2}/n \right ]}{n-1}} \\S = 1.8232 \\\rm The \ Variance = S^{2} = 3.324$

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Determine the solution to the system of equations

gizmo_the_mogwai [7]

Answer:

no sé pero no se y no se y más no se

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Find the difference: 99.45 – 2.25 = ?

Reika [66]

Here

99.45
-2.25
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97.2

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Simplify the expression a+2c-5b-c+a-b

romanna [79]

A + 2c - 5b - c + a - b
We're gonna have to combine like terms.

(a+a)+(-5b-b)+(2c-c)

2a-6b+c This is your answer

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3 years ago