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PolarNik [594]
3 years ago
9

What is the sst for the data set (1,5),(2,8),(4,14)?

Mathematics
2 answers:
Usimov [2.4K]3 years ago
6 0

Answer:

42

Step-by-step explanation:

SST = ∑ ( y − ȳ ) ² (ȳ = pronounced y bar is the mean of y values)

ȳ = (5+8+14)/3 = 27/3 = 9

∑ ( y − ȳ ) ² =  ( 5 − 9 ) ² +  ( 8 − 9 ) ² +  ( 14 − 9 ) ²

=  (  − 4 ) ² +  (  - 1 ) ² +  ( 5 ) ²

= 16 + 1 + 25

= 42

monitta3 years ago
4 0

Answer: 42 (apex)


Step-by-step explanation:


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Score: 0 of 1 pt
cupoosta [38]

Answer:

70

Step-by-step explanation:

21/.3

5 0
3 years ago
the lombaro family went out to dinner and the cost of their meal was 62% if they left a 20% tip how much did they leave
swat32

Answer:

they left a $1.24 tip

Step-by-step explanation:


3 0
3 years ago
In the geometric progression 1, 2, 4… what term is 512?
Levart [38]

The next term is double the previous term, so that the n-th term is given recursively by

\begin{cases}a_1=1\\a_n=2a_{n-1}&\text{for }n>1\end{cases}

This rule tells us that

a_2=2a_1

a_3=2a_2=2^2a_1

a_4=2a_3=2^3a_1

and so on, with the explicit rule

a_n=2^{n-1}a_1=2^{n-1}

for n\ge1.

If 512 is the k-th term in the sequence, then

512=2^{k-1}\implies\log_2512=\log_22^9=\log_22^{k-1}\implies9=k-1\implies k=10

8 0
3 years ago
The annual tuition at a specific college was $20,500 in 2000, and $45,4120
nika2105 [10]

Answer: the tuition in 2020 is $502300

Step-by-step explanation:

The annual tuition at a specific college was $20,500 in 2000, and $45,4120 in 2018. Let us assume that the rate of increase is linear. Therefore, the fees in increasing in an arithmetic progression.

The formula for determining the nth term of an arithmetic sequence is expressed as

Tn = a + (n - 1)d

Where

a represents the first term of the sequence.

d represents the common difference.

n represents the number of terms in the sequence.

From the information given,

a = $20500

The fee in 2018 is the 19th term of the sequence. Therefore,

T19 = $45,4120

n = 19

Therefore,

454120 = 20500 + (19 - 1) d

454120 - 20500 = 19d

18d = 433620

d = 24090

Therefore, an

equation that can be used to find the tuition y for x years after 2000 is

y = 20500 + 24090(x - 1)

Therefore, at 2020,

n = 21

y = 20500 + 24090(21 - 1)

y = 20500 + 481800

y = $502300

6 0
3 years ago
Wat is the answer for this question -x2 + 5x + 24.
Helen [10]

Answer:

31

Step-by-step explanation:

5 0
3 years ago
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