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
hichkok12 [17]
3 years ago
8

Judy solved the quadratic equation

Mathematics
2 answers:
cestrela7 [59]3 years ago
8 0

Answer:

A. Judy made a mistake between Steps 1 and 2.

She did not factor x² – 16=0 correctly.

x² – 16=0 is factored as:

(x +4) (x-4) = 0

Therefore, x = -4 and x = 4

Step-by-step explanation:

Lapatulllka [165]3 years ago
5 0

Answer:

I think it's D

Step-by-step explanation:

Because all of them are true

You might be interested in
What is the value of x in the equation x - 2/3 + 1/6 = 5/6?<br><br> 1) 4<br> 2) 6<br> 3) 8<br> 4) 11
Licemer1 [7]

Answer:

\large\boxed{x=\dfrac{4}{3}=1\dfrac{1}{3}}

Step-by-step explanation:

x-\dfrac{2}{3}+\dfrac{1}{6}=\dfrac{5}{6}\qquad\text{multiply both sides by 6}\\\\6x-6\!\!\!\!\diagup^2\cdot\left(\dfrac{2}{3\!\!\!\!\diagup_1}\right)+6\!\!\!\!\diagup^1\cdot\left(\dfrac{1}{6\!\!\!\!\diagup_1}\right)=6\!\!\!\!\diagup^1\cdot\left(\dfrac{5}{6\!\!\!\!\diagup_1}\right)\\\\6x-(2)(2)+1=5\\\\6x-4+1=5\\\\6x-3=5\qquad\text{add 3 to both sides}\\\\6x=8\qquad\text{divide both sides by 6}\\\\x=\dfrac{8}{6}\\\\x=\dfrac{8:2}{6:2}\\\\x=\dfrac{4}{3}

3 0
3 years ago
Read 2 more answers
Which of the following are polynomial functions?
Vinil7 [7]

A polynomial function is a function involving only non-negative (positive and 0) integer powers of 'x', i.e. all terms with ' 'x' have a non-negative integer power, such as a quadratic x^{2} x^{3} and so on.

Option E is the answer.

Rest all are wrong answers. they do not have positive integers.                      

4 0
3 years ago
Read 2 more answers
What are the x and y intercepts of the below equation
lozanna [386]
Plug in 0 for x
0 - 6y = 30
y = -5
Y intercept: (0,-5)

Plug in 0 for y
5x = 30
X = 6
X intercept: (6,0)
3 0
2 years ago
Meg is 6 years older than Victor. Meg's age is 2 years less than five times Victor's age. The equations below model the relation
Verdich [7]

Since no possible correct method is posted, I will suggest a couple.

Method 1: guess and check

Works well for simple problems involving integers like this one.

Victor's age must be zero or greater than one, say one.

Guess v=1, find m=v+6=7, check m=5v-2=5-2=3 no good.

we need to make v bigger

Guess v=2, find m=v+6=2+6=8, check m=5v-2=5*2-2=8 ✔

So v=2, m=8.

Method 2:

Solve the system of two equations.

since the left-hand sides is m in both equations, and since m=m, we just have to equate the right-hand sides to solve for v.

5v-2=v+6

Solve for v

5v-v = 6+2

4v=8

v=2,

so again, v=2, m=v+6=2+6=8.

6 0
3 years ago
What integer increased by - 12 is 28?
guajiro [1.7K]

Answer:

40

Step-by-step explanation:

Let n represent the integer. Then the increase can be written as ...

n + (-12) = 28

We can add 12 to both sides of this equation:

n + (-12) + (+12) = 28 +12

n + 0 = 40 . . . . . . -12 and 12 total to zero; 28 and 12 total to 40.

n = 40

The integer is 40.

4 0
2 years ago
Other questions:
  • Twenty-one people in a room have an average height of 5 feet 6 inches. a 22nd person enters the room. how tall would he have to
    6·1 answer
  • What is the value of the dependent variable if the value of the independent variable is –4?
    10·1 answer
  • The owner of a small store buys coats for ​$55.00 each. Answer parts a and b. a. He sells the coats for ​$77.00 each. What perce
    6·1 answer
  • What is 7/27 simplified?
    10·2 answers
  • PLZ ANSWER <br> I WILL MARK
    7·2 answers
  • True or False the following is a function.
    8·1 answer
  • Tiara earns $33 washing 3 cars. At this rate, how much does Tiara earn washing 9 cars?​
    6·2 answers
  • Find the equation of the linear function represented by the table below in slope- intercept form. -4 18 1 -2 6 -22 11 -42​
    8·1 answer
  • What is an equation of the line that passes through the points (-3, -1) and<br> (-6, 3)?
    7·2 answers
  • I need a thorough explanation for question 4 please. It’s about Operations of Powers/Exponents.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!