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
worty [1.4K]
3 years ago
11

Solve this equation using an algebraic method: (x + 4)( x - 4) = 9

Mathematics
2 answers:
Mila [183]3 years ago
8 0
(x+4)(x-4)=9  carry out multiplications on left side

x^2-16=9  add 16 to both sides

x^2=25  take the square root of both sides

x=√25

x=±5

So there are two solutions x=-5 and 5
Svetradugi [14.3K]3 years ago
3 0
This is the answer that i was going to upload :
the answer is +5(or)-5 because  of root

You might be interested in
What are two other negative integers that have the same sum as -2 and -5​
Anestetic [448]

Answer:

-3,-4

-6,-1

Step-by-step explanation:

-3 + -4

-6 + -1

7 0
3 years ago
Two angles are supplementary angles. One angle measures 58 degrees. The other angle measures 3n + 5 degrees. What is the value o
stepladder [879]

Answer:

39

Step-by-step explanation:

Angles are supplementary when they add up to 180.  So, we know the other angle that isn't 58 is 180-58=122.  Therefore, 122=3n+5\\3n=117\\n=39

5 0
3 years ago
The weight of a Great blue heron, a type of bird, can grow to around 4 pounds, but can vary. Let W be a random variable that rep
hammer [34]

Answer:

10 ≥  w  ≥  9 ( ? )

Step-by-step explanation:

the probability that a Great blue heron is at least 9 pounds, but no more than 10 pounds         ->      w= weight of great blue heron

w is at lest 9 pound's ->   w ≥ 9

w is no more than 10 pound's ->   w ≥ 10

w ≥  9 ( + )  w ≥  10    =     10 ≥  w ≥  9

6 0
3 years ago
two patterns start at 0. the rule for pattern A is add 2. the rule for pattern B is add 3. what is the value of pattern B when p
mariarad [96]

Answer:4.5

Step-by-step explanation:

A   0   1       2      3

B   0   1.5    3     4.5

7 0
3 years ago
ANSWER ASAP --- NO LINKS-- 25 POINTS
Crazy boy [7]

Evaporation is a type of vaporization that occurs on the surface of a liquid as it changes into the gas phase. The surrounding gas must not be saturated with the evaporating substance. When the molecules of the liquid collide, they transfer energy to each other based on how they collide with each other. Wikipedia

3 0
3 years ago
Other questions:
  • X>10 is 3 a solution
    8·2 answers
  • Can you help me with this it’s so confusing plz help me with both is this
    15·1 answer
  • Estimate the number 352,222
    8·1 answer
  • ONLY ANSWER NUMBER 1!<br> name the supplement of
    12·1 answer
  • What is the value of x
    7·1 answer
  • What is the NOT A RESTRICTION on the quotient of quantity 5 x squared minus 10 x minus 15 divided by quantity x squared minus 9
    9·1 answer
  • -5(6n+6)=30 I need help​
    5·1 answer
  • PLEASE HELP FAST!!!!
    8·1 answer
  • Three times the difference of a number and 7 is 30. Find the number.
    5·1 answer
  • Can anyone help me with my math test heres another question on it!!
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!