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kaheart [24]
4 years ago
12

a data set includes the following test scores:75,82,62,78.The score on a retake is 96.it the retake score replaces the lowest te

st grade, how is the mean affected
Mathematics
1 answer:
Savatey [412]4 years ago
7 0

Answer:

Increase by 8.75

Step-by-step explanation:

75+82+67+72=296

296/4= 74

74 = Original Mean

75+82+96+78=331

New mean 82.75

82.75-74=8.75

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How does the shape of a cross-section of a 3D figure parallel to the base relate to the volume of the 3D figure?
Ket [755]

Answer:

The shape of each cross-section of a 3D figure,  relates to the volume because the area of the cross-section is determined by its shape and the area of this cross section is in the sum that calculates the volume of this 3D figure.

Step-by-step explanation:

An infinite sum of all the all the cross-sections of a 3D figure parallel to the base equals the volume of that 3D figure.

3 0
3 years ago
X/4 + 16 =-32 (Find the value of x) *
Tcecarenko [31]

Answer:

-4

Step-by-step explanation:

x/4+16=-32

-32+16= -16

x/4=-16

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x= -4

4 0
4 years ago
Can 12/100 be simplified
Alborosie
Yes it can be simplified and the answer is 3/25

how? 
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7 0
3 years ago
Theorem: The segment joining the midpoints of two sides of a triangle is parallel to the third side and half its length.
Taya2010 [7]

Answer:

Segment DE is half the length of segment AC. -- Substitution property of equality

Step-by-step explanation:

Here is given a proof for proving line joining mid segment is parallel and half the length of third side.

Stepwise proof is given in two columns

We find that for every line there is a justification as

STatement                                        Justification

D and E coordinates found out       MId point formula

DE and BC are measured                Distance formula

DE=1/2 BC                                          Substitution property of equality

This justification was missing in the given proof and with this included proof would be complete

4 0
3 years ago
Read 2 more answers
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Evgesh-ka [11]
-1+-8. Now it has to be 20 characters so here
7 0
4 years ago
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