MATHEMATICS HIGH SCHOOL

When using the Internet to conduct research, it is most important to:a. get the most current information.
b. not spend too much time shopping online while researching.
c. evaluate carefully that the sources are reliable and credible.
d. realize it is the most time-saving method.

Answers

Answer 1
Answer: C. evaluate carefully that the sources are reliable and credible

Related Questions

Tamora just made the last of her monthly payments on her loan. She had been making these payments for the past nine years. The loan had a principal of $10,675 and an interest rate of 4.75%, compounded monthly. In addition, Tamora paid $939.25 in service charges. What was Tamora’s total finance charge? Round all dollar values to the nearest cent.a. $939.25 b. $11,614.25 c. $3,403.53 d. $2,464.28
Solve the inequality. Graph the solution set. 3(4b – 5) < –28 + 12b
Find the distance between the two points and round to the nearest tenth. (-2,2) and (3,-5)
A=(s-2)180 solve for s
Can u help me with this please

Write an equation for the line parallel to y = –2x – 5 that contains P(–8, 4).

Answers

k:y=-2x-5\n\nl:y=mx+b\n\nk\ ||\ l\iff m=-2\n\nl:y=-2x+b;\ P(-8;\ 4)\n\n-2\cdot(-8)+b=4\n16+b=4\nb=4-16\nb=-12\n\nAnswer:y=-2x-12
k:\ y = -2x -5 \ \ \ and\ \ \ l:\ y=mx+b\n\nk\ ||\ l\ \ \ \Leftrightarrow\ \ \ m=-2\ \ \ l:\ y=-2x+b\n\n P(-8, 4)\ \in\ l\ \ \ \Leftrightarrow\ \ \ 4=-2\cdot(-8)+b\n\n\ \ \ \Leftrightarrow\ \ \ 4=16+b\ \ \ \Leftrightarrow\ \ \ b=-12\ \ \ \Rightarrow\ \ \ l:\ y=-2x-12

Jodi is retiring at the age of 65. When she retires, she estimates that she will need a monthly income for 25 years. If Jodi starts with $328,133.32 in an account that pays 6.2% interest compounded montly, approximately what monthly income will she be able to draw?

Answers

Given:
Principal = 328,133.32
Interest rate = 6.2%, compounded monthly
term = 25 years

A = P (1 + r/n)^nt
A = 328,133.32 (1 + 6.2%/12)^12*25
A = 328,133.32 (1 + 0.0052)^300
A = 328,133.32 (1.0052)^300
A = 328,133.32 (4.74)
A = 1,555,351.94  Total value after 25 years.

1,555,351.94 / 300 months = 5,184.51 per month.

Answer:The correct answer is B:2,154

Step-by-step explanation:

Which statement is the following a counterexample for?2 ∙ 11 = 22

A.If you multiply two numbers greater than 5, then their product is greater than 25.
B.If the product of two numbers is even, then both numbers must be even.
C.If x ∙ y = 1, then x or y must equal 1.
D.If two times a number is greater than 16, then the number must be greater than 9.

Answers

I believe the correct answer is C.

Find the solution of the equation 1/2x^2 -x +5=0

Answers

If you would like to solve the equation 1/2 * x^2 - x + 5 = 0, you can do this using the following steps:

1/2 * x^2 - x + 5 = 0      /*2
x^2 - 2x + 10 = 0
(x - 1)^2 + 9 = 0
1. x = 1 - 3 * i
2. x = 1 + 3 * i

The correct result would be x = 1 - 3 * i and x = 1 + 3 * i.

Divide r+5/ r^2+5r-14 by r^2+4-21/r-2

Answers

So we want to divide (r+5)/(r^2+5r-14) by (r^2+4r-21)/(r-2).
The first thing we are going to do is factor the denominator of the first fraction and the denominator of the second one:
- For our first fraction:
r^2+5r-14=(r+7)(r-2)
Now we can rewrite our first fraction: 
(r+5)/(r^2+5r-14) = (r+5)/((r+7)(r-2))
- For our second fraction: 
r^2+4r-21=(r+7)(r-3)
Now we can rewrite our second fraction:
(r^2+4r-21)/(r-2) = ((r+7)(r-3))/(r-2)

Last but not least, we can express our division as a fraction and simplify: 
((r+5)/((r+7)(r-2)))/( ((r+7)(r-3))/(r-2)) = ((r+5)(r-2))/((r+7)(r-2)(r+7)(r-3)) = (r+5)/((r+7)^2(r-3))

We can conclude that the result of dividing r+5/ r^2+5r-14 by r^2+4r-21/r-2 is: (r+5)/((r+7)^2(r-3))

My little sister, Savannah, is three years old. she has a piggy bank that she wants to fill. She started with five pennies and each day when I come home from school she is excited when I give her three pennies left over from my lunch money. Create a mathematical model for the number of pennies in the piggy bank on day n

Answers

The model would be:

p = 3n + 5

where p = the number of pennies Savannah has and n = the number of days that have passed.

This model works because each day, Savannah gets three pennies, shown in the equation as "3n."  The "+ 5" at the beginning is there because the problem states that Savannah starts with 5 pennies.
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