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liberstina [14]
3 years ago
10

Which r-value suggests a weak positive correlation? A. r = 0.17454 B. r = −0.17454 C. r = 0.98264 D. r = −0.98264

Mathematics
1 answer:
Vaselesa [24]3 years ago
5 0

Answer:

A.) r = 0.17454

Step-by-step explanation:

Got it right on my text

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Tasha is five less than twice as old as his brother Nathan together their ages add up to 25 how old is Tasha and his brother Nat
Zolol [24]
2x-5=25
Add 5 to both sides
2x-5+5=25+5
2x=30
Now, divide both sides to find x
2x/2=30/2
x=15
Nathan is 15 years old
To find Tasha's age, subtract 25 and 15
Therefore, Tasha is 10 years old
Hope I helped!
6 0
3 years ago
What are the common factors of 11,22 and 33
jarptica [38.1K]

Answer:

11 and 1

Step-by-step explanation:

11: 11/1

22: 11/1/2/22

33: 11/1/33/3

8 0
3 years ago
Donatello starts with a marble cube of side length $10.$ He then slices a pyramid off each corner, so that in the resulting poly
prohojiy [21]

Answer:

The length of each side of the polyhedron, s is 4.142 or

= 10(\sqrt{2}-1)

Step-by-step explanation:

If we take the distance of the length of the side of the cube where Donatello make the cut to the corner of the cube as x we get the side of length each polyhedron as

\sqrt{x^2 + x^2} = \sqrt{2x^2} =x\sqrt{2}

x·√2 because we have an hy

Therefore, the original cube had sides of length

10 = 2·x + x·√2

Solving for x we get

x = \frac{10}{\sqrt{2}+2 }

Therefore the length of s is x·√2 which gives

s = x\sqrt{2}  = \frac{10}{\sqrt{2}+2 }\sqrt{2} = 10\sqrt{2} -10 = 10(\sqrt{2}-1) = 4.142

The length of each side of the polyhedron, s = 4.142.

3 0
3 years ago
Find x in this equation. Answer in the form of dollars and cents, such as $ 45.50 or $112.25.
IrinaVladis [17]
(1 1/2 × $8.40)×7 = x
($12.60)×7 = x
$88.50 = x
Therefore, x = $88.50
8 0
3 years ago
2 and 1/2 miles in 3/4 hours
Len [333]

Answer:

2/(3/4) = 2(4/3) = 8/3 = 2 2/3 miles per hour

4 0
3 years ago
Read 2 more answers
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