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
timofeeve [1]
3 years ago
8

Meredith solved a quadratic equation. Her work is shown below.

Mathematics
1 answer:
Damm [24]3 years ago
3 0

Answer:

Step 2

Step-by-step explanation:

Meredith made a fatal mistake or error in step 2;

Any quadratic problem will always have two solutions. Therefore since, we only have one solution here, it is wrong. The mistake was incurred in step 2;

  From the given problem ;

    <u> Wrong                                                  right</u>

    2(x + 4)² = 242

    (x + 4)² = 121     Step 1  

     x+4=11              Step 2                  x + 4  = ± 11

     x  = 7                Step 3                  x + 4  = 11 or x + 4  = -11

                                                           x  = 11- 4     or    x  = -11 - 4

                                                           x  = 7 or -15

You might be interested in
Please help !!!!!!!!!
Anettt [7]

the answer will be -19n+25. All you do is put 19 into the g spot and distribute from that point on into the parentheses. so -19 to n and multiply -19 and -1. after that you get -19 +19+6. you will then add like termsso 19 and 6 is 25. Final answer is -19n+25. Hope its right. Good Luck !

6 0
4 years ago
If triangle ABC with vertices A(-2, -5), B(-3, 2), and C (1, -2) a right triangle?
V125BC [204]
Hello :
<span>A(-2, -5), B(-3, 2), and C (1, -2) 
calculate : AB² , AC² ,BC²
</span> AB² = ( -3  +2   )² +  ( 2  +5  )² =50
AC² = ( 1  +2  )² +  ( -2  +5   )²  =18
BC² = (  1 +3  )² +  ( -2  - 2  )²  = 32
by petagor rule  :  AB² =  AC² + BC²....(<span>ABC is a </span>right triangle in : C )
7 0
4 years ago
Use your calculator to find a six decimal approximation for log base (6/3) of 6.8
Natali5045456 [20]

Answer:

D

Step-by-step explanation:

6.8 = (6/5)^x

6.8 = 1.2^x

x ln 1.2 = ln 6.8

x = ln 6.8 / ln 1.2

= 10.513966

4 0
4 years ago
Which sequence of transformations results in figures that are similar but not congruent?
PolarNik [594]
Maybe the answer is b try it
4 0
3 years ago
WILL GIVE BRAINLIEST! Form quadratic functions given the following information: f(x)&gt;0 if and only if 1
soldier1979 [14.2K]

Answer:

Step-by-step explanation:

sin (330)

-4 cot

(-45)

csc (60)

6 0
3 years ago
Read 2 more answers
Other questions:
  • Is the square root of 12 - 2 rational or irrational
    7·2 answers
  • Can u please answer #1
    6·1 answer
  • Warm-up for you! Get your brain ready! 50 points! You got this!
    5·1 answer
  • A pyramid-shaped roof has a slant height of 16 ft and its square base is 40 ft wide. How much roofing material is needed to
    6·1 answer
  • To model the problem containing an unknown number, translate the statement into an equation. Sixteen is five less than a number.
    11·2 answers
  • Find the sale price.<br> Original price: $50<br><br> Discount: 15%<br><br> Sale Price Is:
    12·1 answer
  • Subtracting fractions
    9·2 answers
  • What is the difference of the fractions? Use the number line to help find the answer.<br> 7
    14·1 answer
  • Find the area of a circle with radius, <br> r<br> = 6.02m.<br> Give your answer rounded to 2 DP.
    6·1 answer
  • Pls help on math pla​
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!