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sveta [45]
3 years ago
8

Please i need help!!!

Mathematics
1 answer:
Aloiza [94]3 years ago
4 0

Answer:

a. 2,112

b. 64

Step-by-step explanation:

a. Using the explanation in B, let's find every term and add them.

<u>Work:</u>

96, 94, 92, 90, 88, 86, 84, 82, 80, 78, 76, 74, 72, 70, 68, 66, 64, 62, 60, 58, 56, 54, 52, 50, 48, 46, 44, 42, 40, 38, 36, 34, 32.

32 is the 34th term, the last row.

<u>Add:</u>

2,112 books is your answer.

b.The following is a sequence, meaning that there's a repeated change for every number.

This change is: -2

We're asked to find the 17th term.

<u>Work:</u>

96, 94, 92, 90, 88, 86, 84, 82, 80, 78, 76, 74, 72, 70, 68, 66, 64.

64 is the amount of books on the 17th row.

*64 is the 17th term.

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Using the data in the table, which statement is true?
Igoryamba

The true statement is mean > median

<h3>How to determine the true statement?</h3>

The mean is the average value.

So, we have

Mean = Sum/Count

This gives

Mean = (8 * 1 + 10 * 3 + 14 * 2)/(1 + 3 + 2)

Evaluate

Mean = 11

The mode is the measure with the highest frequency.

So, we have

Mode = 10

The median is the middle element

So, we have

Median = 10

The mean (11) is greater than the mode and the median

Hence, the true statement is mean > median

Read more about mean, median and mode at:

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2 years ago
Please help ASAP!!!!!!
lina2011 [118]

Answer:

I think its C but I'm not too sure.

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3 years ago
A rock is launched from a cannon. After 1 second, the rock is 58 feet in the air; after 2 seconds, it is 112 feet in the air. Us
max2010maxim [7]

Answer:

Step-by-step explanation: This is the quadratic function:

h(x)=ax²+bx+c

We have two points:

(1,58)

(2,112)

Now, we calculate this quadratic funtion.

we assume that h(0)=0

Therefore:

a(0)²+b(0)+c=0

c=0

(1,58)

a(1)²+b(1)=58

a+b=58  (1)

(2,112)

a(2)²+b(2)=112

4a+2b=112

2a+b=56  (1)

With the equations (1) and (2) we make a system of equations:

a+b=58

2a+b=56

we can solve this system of equations by reduction method.

-(a+b=58)

2a+b=56

---------------------

a=-2

-2(a+b=58)

2a+b=56

-------------------

      -b=-60  ⇒  b=60

The function is:

h(x)=ax²+bx+c

h(x)=-2x²+60x

Now find the height, in feet, of the rock after 10 seconds in the air.

h(10)=-2(10)²+60(10)

h(10)=-200+600=400

Answer: 400 ft.

8 0
2 years ago
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