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Flura [38]
2 years ago
11

Please help

Mathematics
1 answer:
ratelena [41]2 years ago
8 0

Answer:

rom the relation for linear regression formula, Y = b·X + a, we have ;

For car 1

ΣXY = 102780

(ΣX)² = 36

ΣX = 6

ΣY = 52390

ΣX² = 14

N = 3

b = -1000

a = 19463

Y = -1000×X + 19463

For Car 2

ΣXY = 102539.8

(ΣX)² = 36

ΣX = 6

ΣY = 52346.6

ΣX² = 14

N = 3 .

b = -1076.7

a = 19602

Y = -1076.7×X + 19602

Step-by-step explanation:

part B ^

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b(n)=1(-2)^n-1

When n = 4, 
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b(4)=16-1

b(4)=15

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

b(n)=1(-2)^{n-1}

When n = 4
b(4)=1(-2)^{4-1}

b(4)=1(-2)^3

b(4)=1(-8)

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3 years ago
PLASE HELP ASAP, brainly >>>>>>>>>>>>>>>>>>>>>>>>>&gt
oksian1 [2.3K]

I Hope That I Am Not To Late, But The Answer Is D (7,4) <3

<u>Explanation </u>

2 x 7 = 14

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2 x 7= 14

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2 years ago
A seagull is 12 feet above the surface of the ocean. A fish is 3 feet below the surface of the water. How far apart are the seag
lara31 [8.8K]

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4 0
3 years ago
An insect crawls 30 inches in 16.3 minutes. If
omeli [17]

Answer:

Step-by-step explanation:

Convert 6 hours to minutes so that 6 hours and 16. 3 minutes can be in the same units.

Since 1 hour = 60 minutes, then 6 hours = 6 x 60 minutes = 360 minutes

Since the insect has more minutes to crawl (360 minutes), then we expect more inches to be covered. Therefore, the ratio is 360 minutes to 16.3 minutes

= 360 minutes : 16.3 minutes

= 360 : 16.3  

Now express the ratio as fraction and relate it with 30 inches

= 360/16.3  x  30/1

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3 years ago
15x^2 - 25 answer with a complete sentence
zubka84 [21]

Answer:

No, the following expression is not a difference of squares. Binomial can not be factored as the  difference of two perfect squares. 3 is not a square.

Step-by-step explanation:

Factor

15x^2 - 25

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Divide by 3 and factor

5(3x^2-5)

"Theory:

A difference of two perfect squares,  A2 - B2  can be factored into  (A+B) • (A-B)

Proof :  (A+B) • (A-B) =

        A2 - AB + BA - B2 =

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Note :  AB = BA is the commutative property of multiplication.

Note :  - AB + AB equals zero and is therefore eliminated from the expression."

I put a picture to help u understand.

7 0
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