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svetoff [14.1K]
3 years ago
7

Ron decided to use blocking to deal with extraneous factors in his

Mathematics
1 answer:
Mrac [35]3 years ago
8 0
D.4 he should apply 4 treatments to each of the groups
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Eathan ran 11 miles in 2 hours. what is the unit rate of miles to hours
spayn [35]

Answer:

5.5:1

Step-by-step explanation:

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3 years ago
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Find each sum<br><br> 1. 56 + (-56)<br><br> 2. -240 + 370<br><br> 3. -5.7 + (-4.2)
Zinaida [17]

Answer:

1. 0

2. 130

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3 years ago
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Find the angle θ between u = &lt;7, –2&gt; and v = &lt;–1, 2&gt;.
Dmitry_Shevchenko [17]

The angle between two vectors is:

CosФ = u - v / Magnitude(u) x magnitude(v)

Magnitude of u = SQRT(7^2 + -2^2) = SQRT(49 +4) = SQRT(53)

Magnitude of v = SQRT(-1^2 +2^2) = SQRT(1 +4) = SQRT(5)

u x v = (7 x -1) + (-2 x 2) = -7 + -4 = -11

cosФ = -11 / sqrt(53) x sqrt(5)

cosФ = -11sqrt265) / 265

Ф =cos^-1(-11sqrt265) / 265)

Ф=132.51 degrees.

7 0
3 years ago
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Aubree invests money in an account paying simple interest. She invests $30 and no
Marianna [84]

Answer:

8%

Step-by-step explanation:

$30 divided by 100= 0.3/1%

0.3x8=$2.40

$30+$2.4=32.40

8 0
2 years ago
The distance of AB = [?]<br> Round to the nearest tenth.<br> No links and actual help plz!
FrozenT [24]

AB = 5.6
hope this is helpful!
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3 years ago
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