Ask question

Ask question

All categories

3 years ago

9

What is the radius of a circle with a diameter of 45 miles?

2 answers:

telo118 [61]3 years ago

4 0

Answer:

r = 22.5

Step-by-step explanation:

R = D/2 = 45/ 2 = 22.5

GuDViN [60]3 years ago

4 0

<h2>22.5mi</h2>

Just remember to divide the diameter by two to get the radius. If you were asked to find the radius instead of the diameter, you would simply divide 7 feet by 2 because the radius is one-half the measure of the diameter. The radius of the circle is 3.5 feet. You can also use the circumference and radius equation

You might be interested in

What is 2160 minus 1600 long way

lilavasa [31]

Hey there, Lets solve this problem together.

The First step is to line up the numbers.

$= 2160

- 1600$

$\mathrm{Subtract\:each\:column\:of\:digits,\:starting\:from\:the\:right\:and\:working\:left}$

<span>We calculate </span> $0-0$ <span>the result of which is </span> $0$ <span>
</span>
<span>We calculate </span> $6-0$ <span> the result of which is </span> $6$ <span>.
</span>
Since we get a negative number in the next column, we must take 1 from the next column and carry it over to this column. Now the number will be changed to 10.

We calculate $10+1-6$ , and the result is $5$ .

<span>We calculate </span> $2-1-1$ <span> the result of which is</span> $0$ <span>.
</span>
Therefore,

$2160 - 1600 = 0560$

8 0

3 years ago

An investment made in the stock market decreased at a rate of 2.2% per year for 10 years. What is the current value of

never [62]

Answer:

$800,500 (nearest dollar)

Step-by-step explanation:

The given scenario can be modeled as an <u>exponential equation</u>.

<u>General form of an exponential function</u>:

$f(x)=ab^x$

where:

a is the initial value (y-intercept)
b is the base (growth/decay factor) in decimal form
x is the independent variable
y is the dependent variable

If b > 1 then it is an increasing function

If 0 < b < 1 then it is a decreasing function

The initial value (a) is the value of the investment.

Therefore, a = 1,000,000.

If the investment <u>decreases</u> by 2.2% each year, then it will be 97.8% of the previous year.

Therefore, b = 97.8% = 0.978.

Substitute these values into the formula to create a general equation for the scenario:

$f(x)=1000000(0.978)^x$

(where x is the time, in years).

To find the value of the investment after 10 years, substitute x = 10 into the formula:

$\implies f(10)=1000000(0.978)^{10}=800500.1586$

Therefore, the value of the investment after 10 years is $800,500 (nearest dollar).

Learn more about exponential functions here:

brainly.com/question/27949445

brainly.com/question/27955470

3 0

1 year ago

What is the solution to the system of equations below?

Vanyuwa [196]

Answer:

A. (–8, 2)

Step-by-step explanation:

(1) y = ½x + 6

(2) y = -¾x – 4 Set (1) = (2)

½x + 6 = -¾x – 4 Multiply each side by 4

2x + 24 = -3x – 16 Add 16 to each side

2x + 40 = -3x Subtract 2x from each side

40 = -5x Divide each side by -5

(3) x = -8 Substitute (2) into (1)

y = ½(-8) +6

= -4 + 6

= 2

The solution to the system of equations is (-8 ,2).

You can see the graphs of the two functions in the figure below. The two lines intersect at (-8, 2).

Check:

2 = ½(-8) + 6 2 = -¾(-8) - 4

2 = -4 +6 2 = 6 - 4

2 = 2 2 = 2

8 0

3 years ago

Labron has $15,300 of total liabilities and $52,580 of total assets.what is his net worth

Vinvika [58]

Answer:

.......................

6 0

2 years ago

The owner of a bookstore asked her regular customers to rank 3 items from a list of products that she would like to bring to the

Mazyrski [523]

40 ways. 6!/3!(6-3)! =120. We are only trying to find 3 ways. 120 is the total, 120/30 =40. So 40 is the answer.

7 0

3 years ago

Read 2 more answers