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Dimas [21]
3 years ago
5

Hector must find the sum of 50 + 83 + 50 by using mental math. Which property allows Hector to simplify the equation to 50 + 50

+ 83 and find an equivalent sum?
Mathematics
2 answers:
Nimfa-mama [501]3 years ago
4 0

Answer:

The equivalent sum is 100 + 83.

Step-by-step explanation:

Hector must use the Distributive Property to make calculations quicker:

50 + 83 + 50 (Given)

50 + 50 + 83 (Conmutative Property)

50 \times (1+1) + 83 (Distributive Property)

50 \times 2 + 83 (Distributive Property)

2\times 50 + 83 (Conmutative Property)

100 + 83 (Multiplication)

183 (Sum)

The equivalent sum is 100 + 83.

Gekata [30.6K]3 years ago
3 0

Answer: Your answer would be the distributive property

Step-by-step explanation: :) hope I helped

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Consider the following. x = t2 − 2t, y = t5, 1 ≤ t ≤ 4 Set up an integral that represents the length of the curve. 4 1 dt Use yo
zavuch27 [327]

Answer:

L ≈ 1023.0562

Step-by-step explanation:

We are given;

x = t² - 2t

dx/dt = 2t - 2

Also, y = t^(5)

dy/dt = 5t⁴

The arc length formula is;

L = (α,β)∫√[(dx/dt)² + (dy/dt)²]dt

Where α and β are the boundary points. Thus, applying this to our question, we have;

L = (1,4)∫√[(2t - 2)² + (5t⁴)²]dt

L = (1,4)∫√[4t² - 8t + 4 + 25t^(8)]dt

L = (1,4)∫√[25t^(8) + 4t² - 8t + 4]dt

Using online integral calculator, we have;

L ≈ 1023.0562

5 0
3 years ago
4 questions ! will mark and rate!
Dennis_Churaev [7]

Answer:

1. 617.5 cm³

2. 335.6 in³

3. 151.6 m³

4. 3479.1 ft³

Step-by-step explanation:

1.

B1: 19.5 × 9 = 175.5

B2: 6 × 13 = 78

sqrt(B1 ×B2) = 117

h = 5

Volume = ⅓ × 5 × [175.5 + 78 + 117]

617.5

2.

B1: 3.14 × 4.5² = 63.585

B2: 3.14 × 3² = 28.26

sqrt(B1 ×B2) = 42.39

h = 7.5

Volume = ⅓ × 7.5 × [63.585 + 28.26 + 42.39]

335.5875

3.

B1: ½(8+12) × 6 = 60

B2: ½(3+4.5) × 2.25 = 8.4375

sqrt(B1 ×B2) = 22.5

h = 5

Volume = ⅓ × 5 × [60 + 8.4364 + 22.5]

151.5625

4.

B1: 3.14 × 12² = 452.16

B2: 3.14 × 7² = 153.86

sqrt(B1 ×B2) = 263.76

h² = 13² - (12-7)²

h² = 13² - 5²

h² = 144

h = 12

Volume = ⅓ × 12 × [452.16 + 153.86 + 263.76]

3479.12

7 0
2 years ago
A student solved the equation below. Describe the error they made. (What did they do wrong? What should they have done?) *
Zepler [3.9K]
Error: they divided both sides by three.
correct: they should’ve first subtracted both sides by two then divided both sides by three.
8 0
2 years ago
What is 2(x+5)<4+5x can i please get answer fast?
Korolek [52]

Answer:

x > 2

Step-by-step explanation:

2(x+5) = 2x + 10 -> 2x + 10 < 4+5x

Subtract 4 from each side.
2x +6 < 5x
Subtract 2x from each side
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2<x

So, x must be > 2

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2 years ago
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slamgirl [31]

Answer:

Take deep breaths and focus, don't be afraid to ask for help.

Good luck!

5 0
3 years ago
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