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ddd [48]
3 years ago
7

Find the solutions of the quadratic equation x^2 - 10x + 14 = -4 by completing the square​

Mathematics
1 answer:
Anna [14]3 years ago
5 0

Answer:

x1=-(square)7+5 x2=(square)7+5

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Tell whether the ratios form a proportion.
qaws [65]
5:16 is no
24:15 is no
3:12 is yes
3 0
3 years ago
An online media service offers video and music downloads. Each download of a song costs $1.50. Each download of a video costs 2
svetoff [14.1K]

Answer:10

Step-by-step explanation:

if a song costs $1.50 and a video is 2 times that amount of a song, then the video would cost $3. you have a balance of $60. you by 15 videos to start. i multiplied $3 by 15 to get the cost of the movies, witch is $45. after i got the cost of the movies i subtracted the $45 from the over all amount, i got 15. now to the songs. i have $15 to get music. 2 songs costs $3( 1.50+1.50= 3.00). 4 songs would cost $6. 8 songs would cost $12. after that i just added 1.50 until i hit a total of 15. so you can get 10 songs for $15

5 0
3 years ago
Markups
PilotLPTM [1.2K]

Answer:

418.6

Step-by-step explanation:

you set the price to equal 300 dollars, so marking up 40% would equal taking 300 x 1.4

this equals 420, however you need to substract 1.4 because you rounded 299 to 300 giving 418.6

3 0
3 years ago
Read 2 more answers
Which of the following best describes the slope of the line below?
xeze [42]

Answer:

c.positive

Step-by-step explanation:

8 0
3 years ago
At a wedding reception, the caterer served fishing chicken. The fish dinner cost $12 per person in the chicken cost $9 per perso
maw [93]

Answer:

80 persons haf fish and 152 persons had chicken

Step-by-step explanation:

Given data

let the number of persons that had fish be x and chicken be y

so

12x+9y=2544------------------1

x+y= 232------------------------2

from 2

x= 232-y

substitute the value of x in 1

12(232-y)+9y=2544

2784-12y+9y=2544

2784-3y=2544

3y= 2784-2544

3y=240

y= 240/3

y=80

put y= 80 in 2

x+80= 232

x= 232-80

x=152

Hence 80 persons haf fish and 152 persons had chicken

5 0
2 years ago
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