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Solnce55 [7]
2 years ago
7

Find the exact circumference of a circle with the given radius.

Mathematics
2 answers:
kozerog [31]2 years ago
8 0
We know, Circumference = 2π * x/2 = <span>π x

In short, Your Answer would  be: Option B

Hope this helps!</span>
vladimir1956 [14]2 years ago
8 0
The answer would be : <span>B) xπ miles.

Hope this helps !

Photon</span>
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A store charges their customers based on the number of items that they buy. Jane bought four items and was charged $15 and Georg
mojhsa [17]

Answer:

A) f(x) = 3x + 3; f(10) = 33

Step-by-step explanation:

39 = 3x + 3 \\ \\ 36 = 3x \\ \\ 12 = x

15 = 3x + 3 \\ \\ 12 = 3x \\ \\ 4 = x

*33 = 3x + 3 \\ \\ 30 = 3x \\ \\ 10 = x

** From what the problem said, we know that we selected the correct equation.

I am joyous to assist you anytime.

7 0
3 years ago
An artist wants to make alabaster pyramids using a block of alabaster with a volume of 576 cubic inches. She plans to make each
8_murik_8 [283]
Volume of pyramid:

V= \dfrac{1}{3} \cdot A \cdot H

A - base area
H - height

First count volume of one pyramid:

V=\dfrac{1}{3} \cdot 3 \cdot 4=4 [\hbox{inch}^3]

So by using 576 inch^3 you can make 576 : 4 = 144 pyramids
3 0
3 years ago
Read 2 more answers
an ordered pair where the x and y coordinate are the same lies in the 1st or 3rd quadrant. true, sometimes true or not true?. ex
Zarrin [17]

The quadrants are as follows:

The 1st quadrant has the points which have both x and y positive and the 3rd quadrant has the points which have both x and y negative. If the ordered pair and the same x and y value, if ons is positive, the other also is, and the same for negative.

So, at first we see that there are point where the x and y are the same and that are in the 1st or 3rd quadrant.

However, there is one special case:

When x and y are 0, that is, the ordered pair is (0, 0).

Since this point is the origin, it doesn't lie on any of the quadrants.

Thus, this affirmative is sometimes true. Every point but (0, 0) that have same x and y values are in the 1st or 3rd quadrant except for (0, 0).

7 0
1 year ago
(a) Suppose you have 9 gold coins that look identical, but you also know one (and only one) of them is counterfeit. The counterf
alisha [4.7K]

Answer:

Step-by-step explanation:

You can split the coins into 3 groups, each of them has 3 coins. Weigh group 1 vs group 2, if one is lighter, that group has the fake coin. If both groups weigh the same, then group 3 has the fake coin.

Continue to split the group that has the fake coin into 3 groups, each group has 1 coin. Now apply the same procedure and we can identify the fake coin.

Total of scale usage is 2

b) if you have 3^n coins then you can apply the same approach and find the fake coin with just n steps. By splitting up to 3 groups each step, after each step you should be able to narrow down your suspected coin by 3 times.

Step 1: you narrow down to group of \frac{3^n}{3} = 3^{n-1} coins

Step 2: you narrow down to group of \frac{3^{n-1}}{3} = 3^{n-2} coins

Step 3: you narrow down to group of \frac{3^{n-2}}{3} = 3^{n-3} coins

...

Step n: Step 1: you narrow down to group of 3^{n-n} = 3^0 = 1coin

8 0
3 years ago
Factor the quadratic.<br><br> 2x^2+9x+10
erastovalidia [21]

Answer: (x + 2) (2x +5)

8 0
3 years ago
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