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Anna35 [415]
3 years ago
5

Which property is demonstrated below? (b·c)d=b(c·d) A. associative property B. distributive property C. commutative property D.

identity property
Mathematics
2 answers:
Snezhnost [94]3 years ago
8 0

Answer:

associative

Step-by-step explanation:

kipiarov [429]3 years ago
4 0
Associative property because the places of the letters are not changed. What has changed is the combination. The parentheses is from (b*c) to (c*d).
Hope this helps!
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A body moves s metres in a time t seconds so that s = t3 – 3t2 + 8. Find:
Lady bird [3.3K]

Using derivatives, it is found that:

i) v(t) = 3t^2 - 6t

ii) 9 m/s.

iii) a(t) = 6t - 6

iv) 6 m/s².

v) 1 second.

<h3>What is the role of derivatives in the relation between acceleration, velocity and position?</h3>
  • The velocity is the derivative of the position.
  • The acceleration is the derivative of the velocity.

In this problem, the position is:

s(t) = t^3 - 3t^2 + 8

item i:

Velocity is the <u>derivative of the position</u>, hence:

v(t) = 3t^2 - 6t

Item ii:

v(3) = 3(3)^2 - 6(3) = 27 - 18 = 9

The speed is of 9 m/s.

Item iii:

Derivative of the velocity, hence:

a(t) = 6t - 6

Item iv:

a(2) = 6(2) - 6 = 6

The acceleration is of 6 m/s².

Item v:

t for which a(t) = 0, hence:

6t - 6 = 0

6t = 6

t = \frac{6}{6}

t = 1

Hence 1 second.

You can learn more about derivatives at brainly.com/question/14800626

7 0
2 years ago
Order from least to greatest 12% of 60 55% of 220 400% of 18
frez [133]

Answer:

12% of 60, 400% of 18, 55% of 220

Step-by-step explanation:

12% of 60 =7.2

55% of 220 = 121

400% of 18 = 72

7.2, 72, 121

8 0
2 years ago
what is the measure of the vertex angle of an isosceles triangle if one of its base angles measures 48 degrees?
Vladimir79 [104]
180-2\cdot48=180-96=84
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3 years ago
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skad [1K]

Answer:

15$

Step-by-step explanation:

14=$6

35=6*35/14

15

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3 years ago
Rachel earns $42,000 per year. Find how much she would make if she was paid weekly, semimonthly, and monthly.
Delicious77 [7]

Answer:

in a monthly shy much $3500

in a weekly she much $807.69

Step-by-step explanation:

4 0
2 years ago
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