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Gemiola [76]
3 years ago
5

1. Based on data collected over several sessions, a statistically minded trainer of office typists modeled the linzoom in

Mathematics
1 answer:
ipn [44]3 years ago
6 0

Answer:

Statement D is correct.

Step-by-step explanation:

Solution:

Data Given:

Linear Regression Relationship = Speed = 10.3 + 5.4 (hour)

Linear Regression Relationship = y = mx + c

Here,

m = slope = 5.4

c = 10.3 = y - intercept

The correct Answer is D)

Because:

As, the residual value is positive, it means the typist attained faster speed than the model predicted. As we know, residuals is the result of difference between predicted values of the model and data values. On the contrary, if residual would be negative then we would say that typist speed is slower than the model predicted.

Hence, Statement D is correct.

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Which statement about y = x2 + 7x - 30 is true?
Lady_Fox [76]

Answer:

D. The zeros are 3 and -10, because y = (x - 3)(x + 10).

Step-by-step explanation:

y=x^2+7x-30

0=x^2+7x-30

0=(x+10)(x-3)

Therefore, D is correct by the Zero Product Property

4 0
3 years ago
Find the volume of the figure below. 5 cm 11 cm 66 cm 82.5 cm 132 cm 165 cm​
stealth61 [152]

Answer:

A) 66cm³

Step-by-step explanation:

Using the Pythagorean Theorem, the base of the triangle is 4.  The area of a triangle is 1/2 base times height.  Then you multiply times 11 to get the volume.

1/2(3)(4)(11)=66

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3 years ago
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Paladinen [302]
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SpyIntel [72]
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3 0
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sertanlavr [38]

Answer:

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