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
Oxana [17]
3 years ago
8

Adiya said that the first step to solving the quadratic equation x2 + 6 = 20x by completing the square was to divide 6 by 2, squ

are that value, and add the result to both sides. Is Adiya’s solution method correct? Explain.
Mathematics
2 answers:
Anit [1.1K]3 years ago
7 0
No, actually the method is not correct. Adiya needed to take x2 and subtract it from 20x. she would then get 6 = 18x. Have in mind also that she needed to divide 18. So 6 = 18x turns into 6=X. That is why is incorrect
Brrunno [24]3 years ago
6 0

Answer:

Adiya’s method is not correct. To form a perfect square trinomial, the constant must be isolated on one side of the equation. Also, the coefficient of the term with an exponent of 1 on the variable is used to find the constant in the perfect square trinomial. Adiya should first get the 20x term on the same side of the equation as x2. Then she would divide 20 by 2, square it, and add 100 to both sides.

Step-by-step explanation:

You might be interested in
Y = 3x<br> y = -x + 4<br> write the question in coordinate form
postnew [5]

Answer:

(x,y) (1,3)

Step-by-step explanation:

3x=-x+4

+x +x

4x=4

*divide/simply*

x=1

y=3(1)

y=3✓

y=-1+4

y=3 ✓

3 0
3 years ago
Sometimes a dilation is an enlargement, and sometimes it is a reduction. Explain what types of numbers for scale factors causes
Free_Kalibri [48]
If your scale factor has absolute value greater than 1, the dilation is an enlargement. 
<span>If your scale factor has abs value less than 1, the dilation is a reduction. </span>
<span>If the scale factor is equal to 1, the image is congruent to the preimage. 
</span>
Hope this helps.
4 0
3 years ago
5 quarters plus 4 dimes plus 4 nickels plus 10 pennies equals
fgiga [73]

Answer: $1.95

Step-by-step explanation: 5 quarters = 125 cents  4 dimes = 40 cents  4 nickels = 20 cents and 10 pennies = 10 cents  125 + 40 + 20 + 10 = 195 cents take 100 away to form a dollar and the answer is $1.95

7 0
3 years ago
A gambler playing blackjack in a casino using four decks noticed that 20% of the cards that had been dealt were jacks, queens, k
Ksenya-84 [330]

Answer:

x = 162 cards need to be dealt with

Step-by-step explanation:

Given:

- Estimation of likelyhood of next card to be queen, a king, or an ace:

                                  ( 64 - 0.2*x ) / ( 208 - x )

Find:

For what values of x is this likelihood greater than 70%?

Solution:

- Use the likely-hood estimation relation and set up the inequality as follows:

                                 ( 64 - 0.2*x ) / ( 208 - x ) > 0.7

                                 ( 64 - 0.2*x ) > 0.7*( 208 - x )

                                   64 - 0.2*x > 145.6 - 0.7*x

                                          0.5*x > 81.6

                                                 x > 163.2

- It would require 162 cards to be dealt with for the probability of next card being queen, a king, or an ace is greater than 70%

6 0
3 years ago
5 tenths plus 7 thousandths equals how many thousandths
elixir [45]
0.5 + 0.007 = 0.012
So the answer is 12 thousandths

4 0
3 years ago
Other questions:
  • The mode of 3 numbers is 6 and the range is 4. Write down a possible set of numbers.
    8·1 answer
  • Reasoning Zach texted 8 different friends each day for three days about a new game. Then Zach texted 8 friends about a new movie
    5·1 answer
  • PLEASE HELP!!!! NEED HELP!!!!
    7·1 answer
  • A tennis ball just fits inside a plastic cube with edges 40mm.
    14·1 answer
  • Help me with 1 3 and 6
    10·1 answer
  • What is 9:21 equal to in rational form
    8·1 answer
  • Triangles ABC and DEF are similar. Explain why
    11·1 answer
  • 6. What is the solution to 47x+53 = 5(11x+5)?
    11·2 answers
  • Please help me on this, I see that the growth is increasing but I don’t know the meanings
    15·1 answer
  • A ladder is leaning against a building. The distance from the bottom of the ladder to the building is 12 ft shorter than the len
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!