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Gnesinka [82]
3 years ago
15

PLZ HELP ME LN THIS ONE ILL GIVE 17 points <3

Mathematics
1 answer:
omeli [17]3 years ago
8 0

Answer:

D

Step-by-step explanation:

Basically, the space inside the circle is called the area. To find the area of a circle, the formula is pi times the radius squared.

In other words, you could write it like this:

A = \pi r^{2}

Option D is this exact formula, therefore D is the correct answer.

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Sharon is painting her house. she needs 5 gallons of brown paint for every 7 gallons of white paint.  How many gallons of white
Igoryamba

Answer:

19.6

Step-by-step explanation:

The ratio of brown paint to white paint is, 5:7 or \frac{5}{7} so if he bought 14 gallons of white paint we need to figure out:

\frac{5}{7} =\frac{14}{x}

which we can as it only has one unknown:

5x=14×7

5x=98

x=19.6

So the answer is 19.6

3 0
2 years ago
Read 2 more answers
Determine the radius of convergence of the following power series. Then test the endpoints to determine the interval of converge
tresset_1 [31]

Answer:

Radius of the convergence is R = \frac{1}{21}

and,

The Interval of convergence is -\frac{1}{21}

Step-by-step explanation:

Given function : Σ(21x)^k

Now,

Using the ratio test, we have

R = \lim_{n \to \infty} |\frac{21x^{k+1}}{21x^{k}}|

or

R = \lim_{n \to \infty} |\frac{21x^{k}\times21x^{1}}{21x^{k}}|

or

R = \lim_{n \to \infty} |21x^{1}|

now,

for convergence R|x| < 1

Therefore,

\lim_{n \to \infty} |21x^{1}| < 1

or

-\frac{1}{21}

and,

Radius of the convergence is R = \frac{1}{21}

and,

The Interval of convergence is -\frac{1}{21}

8 0
3 years ago
What is the basic ratio for 30:42
lianna [129]
30:42 is represented as 30/42
The lowest form for that is 5/7. Hope that helped. Good luck
6 0
3 years ago
The angles of a triangle are 99??, 3x??, and x + 5??.
Anit [1.1K]
Since we know a triangle only has 180 degrees we can say:

99+3x+x+5=180

Then we can solve for x:

4x+104=180
4x=76

x=19


3 0
3 years ago
PLEASE HELP!!!!
bekas [8.4K]
.09 chance that <span>the land has oil and the test predicts that there is no oil.</span>
5 0
3 years ago
Read 2 more answers
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