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
FinnZ [79.3K]
3 years ago
8

Which of the following is a possible value for X

Mathematics
2 answers:
ANTONII [103]3 years ago
6 0

First, You cross multiply.

(x - 1)(x + 1) = 8

x^2 - 1 = 8

Now subtract 8 from both sides.

x^2 - 9 = 0

x^2 - 9 is a difference between 2 squares.

(x + 3)(x - 3) = 0

For an equation with only multiplying to be equal to 0, one of its factors must be 0.

So either x + 3 = 0 or x - 3 = 0.

So x could be -3 or 3.

The answer is (E).

Hope this helps!

vova2212 [387]3 years ago
4 0

Answer:

E)3

Step-by-step explanation:

4/3-1=2

3+1/2=2

You might be interested in
Question 17
SOVA2 [1]

Answer:

1.8 × 10^10

Step-by-step explanation:

(7.2 × 10 = 72)

(72) ÷ (4 × 10^-9) = 1.8 × 10^10

3 0
3 years ago
What’s the answer??????
NikAS [45]

Answer:

-3x - 5

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Emma divided the trapezoid into two triangles to find the area​
gizmo_the_mogwai [7]

Answer:

Step-by-step explanation:

4 0
3 years ago
Alex has 4 less than twice the number baseball cards as leo. ginny has 12 more than three times the number of baseball cards Leo
marin [14]
Alex has 128 baseball cards, Leo has 66 cards, and ginny has 210.
6 0
3 years ago
The equation tan(x- pi/3) is equal to _____.
kherson [118]

Answer:

B

Step-by-step explanation:

Using the expansion

tan(x - y) = \frac{tanx-tany}{1+tanxtany}, then

tan(x - \frac{\pi }{3})

=  \frac{tanx-tan(-\frac{\pi }{3}) }{1+tanxtan(-\frac{\pi }{3}) }

note that tan( -\frac{\pi }{3}) = - tan(\frac{\pi }{3}) = - \sqrt{3}

= \frac{tanx-(-\sqrt{3}) }{1+tanx(-\sqrt{3}) }

= \frac{tanx+\sqrt{3} }{1-\sqrt{3}tanx } → B

6 0
3 years ago
Read 2 more answers
Other questions:
  • What's the answer to this
    7·2 answers
  • A test has a 50 questions. Two are essay and the remaining are multiple choice and fill in the blank at a 5:1 ratio respectively
    6·2 answers
  • Bernie has developed a new kind of frozen chicken pie, and now he is developing his advertising campaign. Which of the 4Ps of ma
    8·2 answers
  • Which of the quadratic functions has the narrowest graph? y=-x y=1/4x y=4x^2 y=1/9x
    13·1 answer
  • Explain where Earth is found in the universe.
    6·1 answer
  • Simply by adding like terms: -7x^2*y*z + 3y*z^2 - z*x^2*y - 4y
    7·1 answer
  • Plzzzzz help ill mark you plzzzzzzz
    7·2 answers
  • The grass is the number of gallons of white paint that were mixed with gallons of blue paint and various different ratios the nu
    13·2 answers
  • Find the quotient of 3,976 ÷ 28 = ________. Use the partial quotients strategy to help you.
    10·1 answer
  • Can someone help me?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!