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Greeley [361]
3 years ago
11

A sample of 7 students was taken to see how many pencils they were carrying 2,3,2,5,7,1,4 calculate the standard deviation

Mathematics
1 answer:
Firdavs [7]3 years ago
6 0

Answer:

1.92

Step-by-step explanation:

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Solve the exponential equation for x<br> 64^7x-8 = 1
SOVA2 [1]

X=9/64^7

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3 years ago
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Sammy starts with $50 in her saving account and adds $50 each week. Write an equation that Sammy can use to show how much money
victus00 [196]

Known facts:

  • 50 dollars is the initial amount in the saving account
  • 50 dollars is added every week into the savings account.

Variables:

  • x: # of weeks
  • y: total amount of money in savings

Set equation based on known facts and variables:

  y = 50x + 50, 50x is the rate at which it grows depending on

   the week and 50 is the initial amount there

Hope that helps!

7 0
2 years ago
What is the greatest factor of 52 that is a prime number?
Sophie [7]
<em></em>Factors of 52 = 1, 2, 4, 13, 26, 52.

The greatest factor of 52 that is a prime number is 13.
6 0
3 years ago
Segments
Ipatiy [6.2K]

There are several ways two triangles can be congruent.

  • \mathbf{AC = BD}<em> congruent by SAS</em>
  • \mathbf{\angle ABC \cong \angle BAD}<em> congruent by corresponding theorem</em>

In \mathbf{\triangle AOL} and \mathbf{\triangle BOK} (see attachment), we have the following observations

1.\ \mathbf{AO = DO} --- Because O is the midpoint of line segment AD

2.\ \mathbf{BO = CO} --- Because O is the midpoint of line segment BC

3.\ \mathbf{\angle AOB =\angle COD} ---- Because vertical angles are congruent

4.\ \mathbf{\angle AOC =\angle BOD} ---- Because vertical angles are congruent

Using the SAS (<em>side-angle-side</em>) postulate, we have:

\mathbf{AC = BD}

Using corresponding theorem,

\mathbf{\angle ABC \cong \angle BAD} ---- i.e. both triangles are congruent

The above congruence equation is true because:

  1. <em>2 sides of both triangles are congruent</em>
  2. <em>1 angle each of both triangles is equal</em>
  3. <em>Corresponding angles are equal</em>

See attachment

Read more about congruence triangles at:

brainly.com/question/20517835

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2 years ago
John works two jobs. He earns $10 an hour babysitting his neighbor's children and $15 an hour mowing lawns in his neighborhood.
Jlenok [28]
Add up all the numbers
7 0
2 years ago
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