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aksik [14]
2 years ago
14

Solve each question for X , y=-9+x^2

Mathematics
2 answers:
aleksandrvk [35]2 years ago
5 0
So basically you want to isolate only one of the variable on one side so
y=-9+x^2
add 9 to both sides
y+9=x^2
square root both sides
\sqrt{y+9}=x

x=\sqrt{y+9}
olga2289 [7]2 years ago
5 0
Y = -9 + x^2
y + 9 = -9 + 9 + x^2
y + 9 = x^2
√y+9 = <span>√x^2
</span><span>√y+9 = x
</span>x = <span>√y+9

</span><span>√ is the square root symbol</span>
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Emma buys and sells truck parts. She bought two tires for $35.00 each and later sold them for $65.00 each. She bought three rims
Zolol [24]

Answer:

two tires for $35 -------------------------$70  total

three rims for $75---------------------------   $225

five headlights for $ 4.00  ----------------$20

Emma spends ($225+$70+$20) =$315

Now Emma sells them for 2 tires for $65 =130

3 rims for $136         =   $408

5 headlights for $15  = $75

total money Emma makes = $613.

the profit is $613- $315= $298

the profit is $298


7 0
3 years ago
If anyone knows, please help!
abruzzese [7]
You're solving an equation approximating the number of farm.incidents in Wales and England between 1980-88.

F = 3500
3500 = 250x - 493000
3500 + 493000 = 250x
496500 = 250x
496500/250 = x
1986 = x
6 0
2 years ago
Help asap!!!!!!!!!!!
svlad2 [7]

Answer:

The answer to your question is:

Step-by-step explanation:

12.-

                x² - 6x = 5

                x² - 6x + (3)² = 5 + (3)²

               x² - 6x + 9 = 5 + 9

               (x - 3)² = 14

13.-           x² - 6x = 12

               x² - 6x + (3)² = 12 + (3)²

               x² - 6x + 9 = 12 + 9

              (x - 3)² = 21

              x - 3 = ±√21

             x1 = √21 + 3                     x2 = -√21 + 3

               x1 = 7.58                           x2 = -1.58

14.-           2x² - 24x = - 20            Divide by 2

                x² - 12 x = -10

               x² - 12x + (6)² = - 10 + (6)²

               x² - 12x + 36 = - 10 + 36

              ( x - 6) ² = 26

               x - 6 = ±√26

x1 = √26 + 6                                 x2 = -√26 + 6

x1 = 11.1                                          x2 = 0.9

3 0
3 years ago
Please answer this question for me?
KIM [24]

Answer:

$16.96

Step-by-step explanation:

Do 3.99 times 2 to get 7.98

And then do 4.49 times 2 to get 8.98

Add the results together to get 16.96

3 0
3 years ago
Read 2 more answers
Stacy is measuring milk to make pancake better.The recipe calls for 3/4 of a jug of milk she has 1/4 of a jug now.
julia-pushkina [17]

Answer:

she has 2/4 of the jug left. hope this helped a bit!

Step-by-step explanation:

3/4 - 1/4 = 2/4 or 1/2 (simplified)

8 0
3 years ago
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