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
Naddika [18.5K]
3 years ago
12

Match the following items by evaluating the expression for x = -2.

Mathematics
1 answer:
Sloan [31]3 years ago
4 0

Answer:

1)  -4

2) -3

3) 1

4) -2

5) 4

Step-by-step explanation:

According to the information given in the exercise, the value of "x" is:

x = -2

Then:

1) You must substitute  x = -2 into the expresion x-2:

=(-2)-2

Now, you must evaluate:

=-4

2) You have to substitute the given value of "x" into the second expression:

x-1=(-2)-1

Finally, evaluating, you get the following result:

=-3

3) According to the Zero exponent Rule, any non-zero number with an exponent of zero is equal to 1.

Then, substituting x = -2 into the expression x^0 and then evaluating, you get:

x^0=(-2)^0=1

4) By definition:

 a^1=a

Then, substituting   x = -2 into x^1 and evaluating, you get:

x^1=(-2)^1=-2

5) Since:

 a^2=a*a

When you substitute the given value of "x" into the last expression and then  you evaluate, you get:

x^2=(-2)^2=(-2)(-2)=4

You might be interested in
Geometry given right triangle ABC with altitude BD drawn to hvpotenuse AC. If AD = 8
Over [174]

Answer: 2

Step-by-step explanation:

4 0
2 years ago
I need all the help I can
Sholpan [36]
^^ they’re right so hope it helps
7 0
3 years ago
Can you please help me do find a resolution for these equations
rusak2 [61]

Answer:

x=-5

Step-by-step explanation:

I did a for #42

2(x-5)=3x+5

simplify

2x-10=3x+5

subtract 2x from both sides

-10=3x+5

subtract 5 from both sides

-15=3x

divide both sides by 3

-5=x

6 0
3 years ago
Candice leaves on a trip driving at 35 miles per hour. Three hours later, her sister Liz starts from the same location driving a
Natalka [10]
It would be 7 hours because 35 x 3 is 105, if she is already 105 miles from home then 35 x 7 is 245. 245 + 105 = 350. Candice would be at 350 and Liz would be at 350, so in conclusion the answer is 7 hours. :)
4 0
3 years ago
Read 2 more answers
Anna is in a cave 42 feet below the cave entrance. She descends 10 feet, then ascends 15 feet. Find her new position relative to
Mademuasel [1]

Answer:

Her new position is 37 feet below the cave entrance

Step-by-step explanation:

Let us solve the question

∵ The cave entrance is the zero position

∵ Anna is in 42 feet below the cave entrance

→ Below zero means negative

∴ Anna is in -42 feet

∵ She descends 10 feet

→ Descend means negative

∴ She is in -42 + -10 = -52 feet

∵ She ascends 15 feet

→ Ascend means positive

∴ She is in -52 + 15 = -37 feet

→ -37 means she is in below the cave entrance by 37 feet

∴ Her new position is 37 feet below the cave entrance

8 0
3 years ago
Other questions:
  • 387,422 rounded to the nearest hundred thousand
    9·1 answer
  • If a textbook has a mass of 2.2kg and weighs 19.6 newtons on Venus what is the strength of gravity on Venus?
    9·1 answer
  • Which statement is true about the product (9x2 – 4y2)(3x – 2y)?
    6·1 answer
  • 0=x^2-12x+20 solve by factoring.
    7·2 answers
  • What does it mean to find the square root of a number? <br><br><br> What is the square root of 49 ?
    13·1 answer
  • What is the formula to calculate profit amount when P% and CP is given:
    8·1 answer
  • Can I have the answer to this?
    10·2 answers
  • Refer to the following formula for expected payoff:
    13·1 answer
  • Find both x and y. Leave answers in simplified radical from. (Step by step)
    12·1 answer
  • SOMEONE PLS HELP ME ASAP ON THESE QUESTIONS!!!!!!!
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!