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3 years ago

HELPPPP PLEASE!!!!!!!!!!!!!!!!!!!

Mathematics

2 answers:

gulaghasi [49]3 years ago

7 0

Answer:

Median: 5.5

Mean: 8.5

Step-by-step explanation:

Median:

3 3 8 20

3 and 8 are the two middle numbers since there can't be one.

3+8=11/2=5.5

Mean:

Add all the numbers together, and then divide by the amount of numbers there are.

3+3+8+20=34/4=8.5

Hope this helps! :) Plz mark as brainliest!!

garik1379 [7]3 years ago

6 0

Answer:

Median: 5.5 Mean: 8.5

Step-by-step explanation:

3+8+3+20=34

34/4= 8.5

3, 3, 8, 20 ((3+8)/2)

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3) If a = -19, d = 4 then find t2

geniusboy [140]

Answer:

-15.

Step-by-step explanation:

Arithmetic sequence:-

t2 = a + d

= -19 + 4

= -15.

8 0

3 years ago

A club has 10 members.

TEA [102]

That is the combination of 10 over 3, which is calculated as the quotient of factorials:
n!/k!(n-k)!
where n = 10 and k = 3:
= 10!/3!(10 - 3)!
= 10!/3!*7!
= (10*9*8)/(3*2*1)
= 720/6
= 120
therefore there a re 120 possible different groups

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3 years ago

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How do you express equivalent equation

ExtremeBDS [4]

Http://www.icoachmath.com/math_dictionary/equivalent_equations.html

Here's a website that might help

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3 years ago

Karana's mom bought her two items using a credit card. The first item cost $235, and the second item cost $369. Later, she retur

mamaluj [8]

Answer:

C. 604

Step-by-step explanation:

Karana returned the items so you are adding the money back to the credit card which would be 604. 369 + 235 = 604

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3 years ago

For a craft project, two equilateral triangles are taped together to create a quadrilateral.

Anika [276]

If these are the missing parts:

What is the quadrilateral?

a.rhombus
b. rectangle
c. trapezoid
d. square

The quadrilateral formed by the two equilateral triangles taped together is A. RHOMBUS.

Rhombus has equal sides but its is different from a square because it looks like a diamond.
Rhombus also have parallel opposite sides and equal opposite angles.

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3 years ago

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