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aliina [53]
3 years ago
12

A geologist noticed that a land along a fault line moved 24.8 centimeters over the past 175 years . On average, how much did the

land move each year? Round to the hundredths place.
Mathematics
1 answer:
olasank [31]3 years ago
8 0

Answer:

On average, the land moved 0,14 cm each year.

Step-by-step explanation:

To know how much did, on average, the land move,  we should divide the total number of cm over the total number of years:

x=24.8 cm/175 years

x=0,1417 cm each year

If we divide years over cm we will get x in years each cm, which is wrong.

Because the problem asks for the answer rounded to the hundredths place:

x= 0,14 cm each year

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In n + 10 =40, then what is the value of the expression n - 25?
damaskus [11]
Find n first.


n+10= 40

Subtract 10.

n= 30

Plug in n.

30-25= 5

The answer is 5.

I hope this helps!
~cupcake
8 0
3 years ago
Read 2 more answers
Evaluate 7x - (2x)2 + x 3 for x = -2.
V125BC [204]

7x - (2x)2 +  {x}^{3}

7x - 4x +  {x}^{3}

3x +  {x}^{3}

3( - 2) +  { (- 2)}^{3}

- 6 +  - 8

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7 0
3 years ago
PLEASE ANSWER THIS ASAP !!!!!
77julia77 [94]
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4 0
3 years ago
Two groups of students were asked how far they lived from their school. The table shows the distances in miles: Group A (distanc
iogann1982 [59]

The mean is equal for Group A and Group B.

<h2>Given </h2>

Two groups of students were asked how far they lived from their school.

The table shows the distances in miles:

Group A (distance in miles) 1 1.5 3.03 3.2 2.8 1.5 1.8 2.5 2.2

Group B (distance in miles) 2 2.5 3.23 1.3 1.8 2.4 3 1.5 1.8

<h3>What is mean?</h3>

The mean of any data set or observation is equal to the sum of all the observations and divided by the number of observations.

The formula used to calculate the mean is;

\rm Mean  = \dfrac{Sum \ of \ all \ observation}{Number \ of \ obrservation}

The mean of group A is;

\rm Mean  = \dfrac{Sum \ of \ all \ observation}{Number \ of \ obrservation}\\\\\rm GroupA \ mean = \dfrac{1 + 1.5 + 3.03 + 3.2 + 2.8 + 1.5 + 1.8 + 2.5 + 2.2}{9 }\\\\\rm Group A \ mean=\dfrac{ 19.53}{9}\\\\ Group A \ mean = 2.17

The mean of group B is;

\rm Mean  = \dfrac{Sum \ of \ all \ observation}{Number \ of \ obrservation}\\\\\rm Group B \ mean = \dfrac{2 + 2.5 + 3.23 + 1.3 + 1.8 + 2.4 + 3 + 1.5 + 1.8}{9} \\\\Group B \ mean = \dfrac{19.53}{9}\\\\ Group B \ mean = 2.17

Hence, the mean is equal for Group A and Group B.

To know more about Mean click the link given below.

brainly.com/question/12513463

7 0
2 years ago
How do you simplify this expression? <br> -12 divided by 3•(-8+(-4)*2-6)+2
garri49 [273]

0.1875

Step-by-step explanation:

Step 1:

Let the given expression in word form be expressed as

(-12)/(3(-8 + ((-4)(2)) - 6) + 2)

Step 2:

Let us we simplify it using BODMAS rule.

(-12)/ ( 3(-8-8-6) + 2)

(-12) / (3(-22)+2)

0.1875

6 0
3 years ago
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