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krok68 [10]
3 years ago
10

Ginger Yiu has a principal of $900 in her savings account with a 6% APR. The simple interest is calculated quarterly. What is th

e amount in the account at the end of the third quarter?
A. $945.22
B. $987.33
C. $935.67
D. $940.50
Mathematics
1 answer:
Bezzdna [24]3 years ago
3 0
A=p (1+rt)
A future value ?
p Principle 900
R interest rate 0.06
T time 9/12

A=900×(1+0.06×(9÷12))
A=940.5
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Determine whether the random variable is discrete or continuous. In each​ case, state the possible values of the random variable
yan [13]

Answer:

a) C. The random variable is discrete. The possible values are xequals​0, ​1, ​2,....

b) B. The random variable is continuous. The possible values are x greater than or equals 0.

Step-by-step explanation:

Discrete variables are countable in a finite amount of time. Continuous variables can be infinitely many. They rather assume values in a range.

<u><em>(a) Is the number of hits to a Web site in a day discrete or​ continuous? </em></u>

C. The random variable is discrete. The possible values are x equals​ 0, ​1, ​2,....

<u><em>(b) Is the weight of a Upper T dash bone steak discrete or​ continuous?</em></u>

B. The random variable is continuous. The possible values are x greater than or equals 0.

8 0
3 years ago
Solve <br><img src="https://tex.z-dn.net/?f=y%20%3D%20%20%7Bx%7D%5E%7B2%7D%20%20-%205" id="TexFormula1" title="y = {x}^{2} - 5
vesna_86 [32]

Add 5 to both sides

y + 5 = x^2

Take the square root of both sides

±√y + 5 = x

Switch sides

<u>x = ±√y + 5</u>

3 0
3 years ago
In a class of 20 students ,40% are boys.25% of theboys and 50% of the girls were glasses.how many students were glassses. show w
Mice21 [21]
40% of 20 is 8 Boys
60% of 20 is 12 Girls
50% of the Girls is 6
25% of the Boys is 2
6 + 2 = 8 Students wore glasses

Hope this helps!
4 0
3 years ago
Please help asap!!! !!!
erica [24]
(36 3/4" + 36 3/8" + 371/2" +z) /4 = 36 5/8" 
This is the equation that you would get for the average. Now we just solve for z. 
Following PEMDAS you have to mulitply the equation by 4 to get rid of the divide by 4 part. 
4( (36 3/4" + 36 3/8" + 371/2" +z) /4 = 36 5/8)
Which does this
 36 3/4" + 36 3/8" + 371/2" +z = 146 1/2" 
Now you have to add and subtract to get "z" by itself. 
36 3/4" + 36 3/8" + 371/2" = 110 5/8" 
(110 5/8" + z = 146 1/2" ) -110 5/8"
z= 35 7/8", so the answer is b
6 0
3 years ago
Which are the solutions to the quadratic equation x^2=9x+6
AlekseyPX
I will use a quadratic formula:

x^2=9x+6\ \ \ \ |-9x-6\\\\x^2-9x-6=0\\\\a=1;\ b=-9;\ c=-6\\\\b^2-4ac=(-9)^2-4\cdot1\cdot(-6)=81+24=105\\\\\sqrt{b^2-4ac}=\sqrt{105}\\\\x_1=\dfrac{-b-\sqrt{b^2-4ac}}{2a};\ x_2=\dfrac{-b+\sqrt{b^2-4ac}}{2a}\\\\x_1=\dfrac{-(-9)-\sqrt{105}}{2\cdot1}=\dfrac{9-\sqrt{105}}{2}\\\\x_2=\dfrac{-(-9)+\sqrt{105}}{2\cdot1}=\dfrac{9+\sqrt{105}}{2}
5 0
3 years ago
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