1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Greeley [361]
3 years ago
8

Did I do these two correctly?

Mathematics
1 answer:
natka813 [3]3 years ago
7 0
Yes you did the equation on this page correctly.
You might be interested in
Find the future value of 575 at 5.5% compounded quarterly for 5 years. Round to the nearest cent
Readme [11.4K]

Answer:

Future value = $755.61 ( to the nearest cent)

Step-by-step explanation:

The formula for calculating the future value of an invested amount compounded periodically for a number of years is given as:

FV = PV (1+\frac{r}{n} )^{n*t}

where:

FV = future value = ???

PV = present value = $575

r = interest rate in decimal = 5.5% = 0.055

n = number of compounding periods per year = quarterly = 4

t = time of investment = 5 years

∴ FV = 575 (1+\frac{0.055}{4} )^{4*5}

FV = 575 (1+0.01375)^{20}\\FV = 575 (1.01375 )^{20}\\FV = 575 * 1.3141\\FV = 755.607

∴ Future value = $755.61 ( to the nearest cent)

4 0
3 years ago
Use the quadratic formula to solve 5x=6x^2-3, what are the values of x?
Elis [28]
<span>5x= 6x^2 -3
</span><span>6x^2 -5x -3
a = 6
b = -5
c = -3

x = [-b +- sq root(b^2 -4ac)] / 2a
x = [--5 +- </span><span>sq root (25 -(4*6*-3)] / 12
</span><span>x = [5 +- sq root (25 + 72)] / 12
x = [5 + sq root (97)] / 12
x = 5 +- </span><span>9.84886] / 12
x1 = </span><span><span><span>1.237405 </span> </span> </span>  <span>
x2 = </span><span><span><span>-0.404072 </span> </span> </span>



8 0
3 years ago
Pls help with this !!!!!!!
arlik [135]

Both methods assume a normal distribution of the data, but the z-tests are most useful when the standard deviation is known.

OR u can use , z-tests are used when we have large sample sizes (n > 30), whereas t-tests are most helpful with a smaller sample size (n < 30). Both methods assume a normal distribution of the data, but the z-tests are most useful when the standard deviation is known.

7 0
2 years ago
Right now, Molly is twice as old as Nancy. Zander is 6 years younger than Molly. Which expression represents Molly's current age
solniwko [45]

Answer: 1.) 2n 2.) z+6 3.) 20 years old

Step-by-step explanation:

5 0
3 years ago
What is the mapping for a reflection in the line y=-1
Sidana [21]

Answer:

0

Step-by-step explanation:

the key mapping for a reflection in the line y=-1 is 0

8 0
3 years ago
Other questions:
  • I need help on this question
    5·1 answer
  • Help me on all please
    6·1 answer
  • CAN SOMEONE BE NICE AND HELP ME K THANKS;)
    12·1 answer
  • WILL MARK BRAINLIEST
    5·1 answer
  • Determine the domain of the function. f as a function of x is equal to the square root of x plus one divided by x plus four time
    7·1 answer
  • What are the coordinates for the origin of the coordinate plane?
    7·1 answer
  • Solve the inequality <br> e-2 &lt;0
    13·1 answer
  • 1/3 + a = 5/4 a = ( )<br><br><br><br> Help plz!
    15·2 answers
  • 18.
    10·2 answers
  • Suzy bought a 20 ounce
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!