All categories

3 years ago

ANSWER FAST PLZ 25POINTS!!!!!!!!!!!

Mathematics

1 answer:

Maksim231197 [3]3 years ago

4 0

Answer:

C. 8 $\pi$ units

Step-by-step explanation:

The circumference is determined by the formula: $C=2\pi r$ , where r is the radius.

In this case, the radius is 4. So, plugging in this value, we get:

$C=2\pi *4=8\pi$

Thus, the answer is C. 8 $\pi$ units.

Hope this helps!

You might be interested in

What is the missing term of ..9, __ , 19

VARVARA [1.3K]

Answer:

The answer could be anything, but if it's an arithmetical sequence, then it's 14.

Step-by-step explanation:

I'm assuming that the added numbers always stay the same, meaning it's linear. If you add 5 to 9, you get 14. If you add 5 again, you get 19. Another way of doing this is (19-9)/2 = 5, then 9+5=14.

6 0

3 years ago

How would you multiply (3x-8)(2x^2+4x-9)

Naily [24]

(3x-8)(2x^2+4x-9)= 6x^3−4x^2−59x+72
Hope I helped! ( Smiles )

4 0

3 years ago

When (81x^2/7) (2/9x^3/7) is simplified, it can be written in the form ax^b where a and b are real numbers. Find ab.

larisa86 [58]

Answer:

In improper form your solution will be $\frac{90}{7}$ . As a mixed fraction it will be $12\frac{6}{7}$ .

Step-by-step explanation:

The first thing we want to do here is to simplify this expression. After doing so, " a " and " b " should be multiplied to result in a possible improper fraction,

$\left(81x^{\frac{2}{7}}\right)\:\left(2/9x^{\frac{3}{7}}\right)\:$ - Apply exponential rule " $\:a^b\cdot \:a^c=a^{b+c}$ "

= $81\cdot \frac{2}{9}x^{\frac{2}{7}+\frac{3}{7}}$ - Combine fractions $\frac{2}{7}$ and $\frac{3}{7}$

= $81\cdot \frac{2}{9}x^{\frac{5}{7}}$ - Multiply the fractions, and simplify further

= $\frac{162x^{\frac{5}{7}}}{9}$ = $18x^{\frac{5}{7}}$ - This is out simplified expression

Now that we have this simplified expression, we can see that a = $18$ , and b = $\frac{5}{7}$ . Therefore, multiplying the two we should receive the improper fraction as follows,

$18 * \frac{5}{7}$ = $\frac{90}{7}$ - Note that this is in improper form. If you want your solution in a mixed fraction, it will be $12\frac{6}{7}$ .

5 0

4 years ago

How do you write 4540 million in standard form?

TEA [102]

4,540,000,000 here you go this is in stdrd form

7 0

3 years ago

Read 2 more answers

and he's helping his friend Eddie is helping his friend understand how to identify functions from sets of ordered pairs which se

irakobra [83]

<h2>Answer:</h2>

First of all, let's define what a function is:

A function $f$ from a set $A$ to a set $B$ is a relation that assigns to each element $x$ in the set $A$ exactly one element $y$ in the set $B$ . The set $A$ is the domain (also called the set of inputs) of the function and the set $B$ contains the range (also called the set of outputs).

The ordered pairs has been plotted below. As you can see, the set B is the only relation that meets the requirements of the concept of function because that relation assigns each element $x$ in the set $A$ exactly one element $y$ in the set $B$ . For the other sets, at least one element $x$ in the set $A$ matches to two or more elements $y$ in the set $B$ .

6 0

3 years ago