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
e-lub [12.9K]
3 years ago
14

(50 POINTS) Determine whether x^-2 is always, sometimes or never a positive value. Explain your reasoning. (for any value of x).

Mathematics
1 answer:
ELEN [110]3 years ago
3 0

Answer:

never because you're multiplying the number -2 times so it will be positive only if the variable is positive.

Step-by-step explanation:

what if x=2?

2^-2

= 1 /2*2

= 1 /2^2

= 1 /4 or 0.25

what if x=-5?

-5^-2

=−1*5−2

=−1*  1 /5*5

= −1 /5*5

= −1 /5^2

= −1 /25  or-0.04

n

You might be interested in
I need help ? which linear function is represented by the graph?​
PilotLPTM [1.2K]
<h3>Answer: f(x) = (-1/2)x+1, choice B</h3>

=================================================

Explanation:

The diagonal line passes through 1 on the vertical y axis. So the y intercept is b = 1. This means the location of the y intercept is (0,1).

Start at (0,1) and move down 1 and to the right 2 to arrive at (2,0). This is another point on the diagonal line. The motion of "down 1 and right 2" is effectively the slope

slope = rise/run = -1/2

rise = -1, run = 2

The rise being negative means we have gone downhill as we move to the right.

With m = -1/2 as the slope and b = 1 as the y intercept, we go from y = mx+b to y = (-1/2)x+1

The last thing to do is replace y with f(x) to get f(x) = (-1/2)x+1 as the final answer.

4 0
3 years ago
Read 2 more answers
HURRY QUICK!! Apply the distributive property to create an equivalent expression. 1/2 ( 6e - 3f - 3/4 )
tensa zangetsu [6.8K]

Answer:

1 2/6      3 3/4

Step-by-step explanation:

7 0
4 years ago
a cookie recipe included 2/3 cups of sugar for 12 cookies, how many cups of sugar will you need if you wanted to make 42 cookies
MatroZZZ [7]

Answer:10/6 cups of sugar is the answer to this equation being the correct answer.

Step-by-step explanation:

What is the "theoretical yield" of cookies from each of the "reactants?"

7 0
3 years ago
What two numbers plus 35 equal 180
Andrews [41]
X^2+35=180?
Subtract 35 on each side

x^2=145
Take the square root

x= -sqrt(145)
+sqrt 145...

I hope this helps!!
4 0
3 years ago
Read 2 more answers
The school district has 294 basketball players to distribute to 36 different teams in the intramural basketball league. If the b
mojhsa [17]
Each team will recieve 8 players
4 0
3 years ago
Read 2 more answers
Other questions:
  • This is a simplifying question.Y+Y+Y+Y
    9·2 answers
  • What is the area of this face?
    11·2 answers
  • Sally borrows some money at a 15% interest rate. She repays the loan in full after 30 months and pays $1692 in interest. How muc
    7·1 answer
  • Isaac wants to buy tomatoes and a loaf of bread. Tomatoes are $1.20 a pound, and a loaf of bread is $2.00. He has $8.00 to spend
    10·1 answer
  • What
    12·2 answers
  • Wish is 7(x-4) in simplest form?
    13·2 answers
  • An object’s weight on Earth varies directly to its weight on the Moon. If a man weighs 180 kg on Earth, then he will weigh 30 kg
    12·1 answer
  • A 3650​-year-old wooden chest is found by archaeologists. What percentage of the original Superscript 14 Baseline Upper C would
    14·1 answer
  • Which problem could be solved by evaluating the expression 7 x (-3)?​
    6·2 answers
  • PLEASE HELP ME!!!!!!! VERY CONFUSED AND I NEED THIS VERY BADLY!!!!!! I appreciate the help!!!!
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!