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3 years ago

5

Find the circumference of a circle with diameter 7.3 m Use the pi key on your calculator and round your answer to the nearest te

nth

1 answer:

Crank3 years ago

4 0

Answer:

22.9 m

Step-by-step explanation:

Circumference = π × diameter

Using a calculator to evaluate 7.3π, we get 22.933626...

Rounding this to the nearest tenth gives 22.9. Units are meters.

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4 pairs of shoes cost $80. What is the cost of 7 pairs of shoes ?

Karolina [17]

80/4=20
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7 shoes = 140

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3 years ago

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iragen [17]

The equivalent expression for (x + 4)^5 is $x^5+ 20x^4+ 160x^3 + 640x^2 + 1280x + 1024$

The expression is given as:

$(x + 4)^5$

To expand the expression, we make use of Pascal triangle, where:

5:= 1 5 10 10 5 1

So, we have:

$(x + 4)^5 = 1 * x^5 * 4^0 + 5 * x^4 * 4^1 + 10 * x^3 * 4^2 + 10 * x^2 * 4^3 + 5 * x * 4^4 + 1 * x^0 * 4^5$

Evaluate the exponents

$(x + 4)^5 = 1 * x^5 * 1 + 5 * x^4 * 4 + 10 * x^3 * 16 + 10 * x^2 * 64 + 5 * x * 256 + 1 *1 * 1024$

Evaluate the products

$(x + 4)^5 = x^5+ 20x^4+ 160x^3 + 640x^2 + 1280x + 1024$

Hence, the equivalent expression for (x + 4)^5 is $x^5+ 20x^4+ 160x^3 + 640x^2 + 1280x + 1024$

Read more about binomial expressions at:

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3 years ago

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During construction the workers need to mix dried bentonite into the concrete as it is being mixed to get the desired consistenc

krek1111 [17]

Answer:

The answer is A

Step-by-step explanation:

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3 years ago

Which of the following best shows the commutative property of addition?

kodGreya [7K]

Answer:

it is A

Step-by-step explanation:

No matter how much you flip the equation around, the end result will be the same. I chose A because it shows exactly what I described 4+5 is the same as 5+4

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3 years ago

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densk [106]

Answer:

5.25 + 5.25 = 10.5

8.5 - 3.25 = 5.25

so

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3 years ago