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melamori03 [73]
2 years ago
7

What is the SST for the data set (1,5), (2,9), (4,10)

Mathematics
2 answers:
lianna [129]2 years ago
3 0
I think that the answer is (4,10). hope it helped :)
Bad White [126]2 years ago
3 0

Answer:

14

Step-by-step explanation:

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

ȳ = (5+9+10)/3 = 24/3 = 8

∑ ( y − ȳ ) ² =  ( 5 − 8 ) ² +  ( 9 − 8 ) ² +  ( 10 − 8 ) ²

=  (  − 3 ) ² +  (  1 ) ² +  ( 2 ) ²

= 9 + 1 + 4

= 14

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A necklace has and matching bracelet have two types of beads. The necklace has 12 large beads and 8 small beads and weighs 88 gr
miv72 [106K]

Weight of one large bead is 1.5 grams and weight of one small bead is 8.75 grams.

Step-by-step explanation:

Let,

Weight of one large bead = x

Weight of one small bead = y

According to given statement;

12x+8y=88     Eqn 1

5x+2y=25      Eqn 2

Multiplying Eqn 2 by 4

4(5x+2y=25)\\20x+8y=100\ \ \ Eqn\ 3\\

Subtracting Eqn 1 from Eqn 3

(20x+8y)-(12x+8y)=100-88\\20x+8y-12x-8y=12\\8x=12

Dividing both sides by 8

\frac{8x}{8}=\frac{12}{8}\\x=1.5

Putting x=1.5 in Eqn 1

12(1.5)+8y=88\\18+8y=88\\8y=88-18\\8y=70

Dividing both sides by 8

\frac{8y}{8}=\frac{70}{8}\\y=8.75

Weight of one large bead is 1.5 grams and weight of one small bead is 8.75 grams.

Keywords: linear equation, elimination method

Learn more about elimination method at:

  • brainly.com/question/11334714
  • brainly.com/question/11345547

#LearnwithBrainly

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2 years ago
If John read 8 pages in 10 minutes, how many pages can he read in 70<br> minutes?
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Step-by-step explanation:

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3 years ago
Given the diagram of parallelogram LMNO, solve for s.
Evgen [1.6K]
< o and < m are congruent because opposite angles are congruent
3t - 15 =  2t + 10
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< m and < o are consecutive angles and they are supplementary....so they add up to 180
< m + < o = 180
60 + < o = 180
< o = 180 - 60
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3s = 120
s = 120/3
s = 40

6 0
3 years ago
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erastovalidia [21]

Answer:

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Alex787 [66]

Answer:

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Step-by-step explanation:

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