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3 years ago

5

A circle has a diameter of 14cm. What's the circumfrence?

1 answer:

vesna_86 [32]3 years ago

7 0

I believe that when finding the radius of a circle you half the diameter, but when finding the circumference of a circle you need to multiply the diameter (14cm) by pi.

So 14xpi= 43.98229715

But it can be simplified/ rounded to 44cm.

Of course I might be incorrect so do please correct me if I am wrong.

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6. (5 points) What is 3loga + logb − logc written as a single logarithm?

Jobisdone [24]

Answer: $log(\frac{a^3b}{c})$

Step-by-step explanation:

You need to use the following Properties of Logarithms:

$1)m*log(a)=log(a)^m\\\\2)log(a)+log(b)=log(ab)\\\\3)log(a)-log(b)=log(\frac{a}{b})$

Given the following expression:

$3log(a) + log(b) - log(c)$

You can follow these steps in order to write it as a single logarightm:

- Apply the first property shown above:

$=log(a)^3 + log(b) - log(c)$

- Apply the second property:

$=log(a^3b)- log(c)$

- Finally, apply the third property:

$=log(\frac{a^3b}{c})$

4 0

3 years ago

Arada [10]

Answer:

.

Step-by-step explanation:

7 0

2 years ago

Which of following not a way to represent the solution of inequality 5(x + 2) GREATER THAN OR EQUAL TO 7x + 2(x − 1)?

mixer [17]

So because it says NOT a way....I think it's A...Maybe I'm wrong but whatever.

6 0

3 years ago

Read 2 more answers

1) Evaluate the following expressions.show your work <br> a) 7(m - 8) for m = -4

Akimi4 [234]

Answer:

-84

Step-by-step explanation:

Since m=-4, we can plug -4 into the expression and use PEMDAS

7(m - 8)

7((-4)-8)

7(-12)

-84

4 0

2 years ago

Which is bigger 5/8 or 7/12

gladu [14]

5/8=0.625

7/12=0.583......

5/8 is bigger as ive put both into a decimal as it is easier to tell

4 0

3 years ago

Read 2 more answers