What is the average rate of change from x=-1 to x=-2? A. 2 B.-2 C.4 D.1

I need help please?!!

Sveta_85 [38]

Answer:

72

Step-by-step explanation:

8 0

2 years ago

A leading bank is coming up with an investment that pays 8 percent interest compounded semiannually. What is the investment's ef

uranmaximum [27]

The effective rate is calculated in the following way:
$r = {(1 + \frac{i}{n} )}^{n} - 1$
where r is the effective annual rate, i the interest rate, and n the number of compounding periods per year (for example, 12 for monthly compounding).
our compounding period is 2 since the bank pays us semiannually(two times per year) and our interest rate is 8%
so lets plug in numbers:
$r = {(1 + \frac{8\%}{2}) }^{2} - 1 \\ r = {(1 + \frac{1}{25}) }^{2} - 1 \\ r = \frac{676}{625} - 1 \\ r = 0.0816 \: or \: 8.16\%$

5 0

2 years ago

The steps for determining the center and radius of a circle using the completing the square method are shown below:

Fudgin [204]

The answer is option c.
That is, the wrong step in step 6. It was written that the center of the circunference is the point (2.1). However, the general equation of a circumference is:
(X- (a)) ^ 2 + (Y- (b)) ^ 2 = r ^ 2
Where the point (a, b) is the center of the circle.
So for this case the point for the center is: (-2, -1)

7 0

3 years ago

There are 20 bags filled with coins that all look alike. The coins in 19 of the bags are authentic and weigh 10 ounces each. The

irakobra [83]

It will come out to a flat number like 10 20 30 40 ect and the counterfeit will have a 1 at the end such as 11 21 31 41.
Hope i Helped

6 0

2 years ago

Can someone help, "Solve for x and y when 3y=12 and x+y = 6"

Lapatulllka [165]

Answer:

x=2

y=4

3 times 4 equals 12 and 2 plus 4 would equal six

7 0

2 years ago