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
WITCHER [35]
3 years ago
9

Determine the solution set of (x - 3)2 = 49. {6, -8} {4, 10} {10, -4}

Mathematics
1 answer:
never [62]3 years ago
5 0

Answer:

{10, -4}

Step-by-step explanation:

(x-3)^2 = 49

Take the square root of each side

sqrt((x-3)^2) = sqrt(49)

x-3 = ±7

Add 3 to each side

x-3+3 = 3±7

x =  3±7

x = 3+7   and x = 3-7

x = 10        x = -4

You might be interested in
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
The price of an item has risen to $120 today. Yesterday it was $40. Find the percentage increase.
Snezhnost [94]

Answer:

200%

Step-by-step explanation:

If $40 is 100% then multiply it by 3 to get $120

7 0
2 years ago
Read 2 more answers
Solve the inequality 12(1/2x-1/3)>8-2x
gizmo_the_mogwai [7]

Answer:8(1/2x - 1/4)> 12 - 2x

a.x > 7

b.x > 7/3

c.x > 5/3

d.x > 5/3

Step-by-step explanation: Solve the inequality 12(1/2x-1/3)>8-2x

3 0
3 years ago
Question 15 of 25<br>What is the solution to this equation?<br>X + 8 = -3​
Naddika [18.5K]

Answer:

x=-11

Step-by-step explanation:

x+8=-3

x=-3-8 :- collect like term

since we are adding two negative numbers, we will let the number be negative but add them.

x=-11

Hope it helps :)

6 0
3 years ago
Read 2 more answers
PLZ HELP FAST
natka813 [3]

Answer:

11.81

Step-by-step explanation:

5 1/4 per 20 min (1/3 of an hour)

5.25 (5 1/4) * 3 = 15.75 pounds per hour

$0.75 earned per pound

So, 15.75 * $0.75 = $11.81

7 0
3 years ago
Read 2 more answers
Other questions:
  • Expanding each integer in the expression 21x12, the result is [(2x10^1)+(1x10^0)]x[(1x10^1)+(2x10^0)]. Replace the 10s with x's
    13·1 answer
  • Use _________ to isolate the variable. A reciprocals B subtraction C an expression D inverse operations
    9·1 answer
  • 20 points! i need somebody to explain this to me for D + 4 &lt; 7.
    8·1 answer
  • What number must be squared in order to complete the pattern. 49,64,81,100​
    5·1 answer
  • This is for IXL
    14·1 answer
  • What is the value of x?
    6·2 answers
  • If 2x-1/3=-4x then x=
    7·1 answer
  • QUICK ANSWERS PLEASE!!!!<br> Find the following
    9·2 answers
  • What is the sum of 7 3/16+3 3/4
    10·2 answers
  • ASAP Ben fold 126 and 200 and his first two games what must he Bowl in his third game to get an average of at least 190​
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!