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Andru [333]
3 years ago
5

I am trying to figure out what x is for this quadratic equation, could you help? The exact question on the assignment is

Mathematics
1 answer:
aleksandrvk [35]3 years ago
7 0
There seems to be something missing. Either a missing diagram or more context to the problem, or perhaps more instructions. I'm not exactly sure.

Anyways, if you simply need to solve the equation for x, then...
3x+7 = 5x-9
3x+7-3x = 5x-9-3x ... subtract 3x from both sides
7 = 2x-9
7+9 = 2x-9+9 ... add 9 to both sides
16 = 2x
2x = 16
2x/2 = 16/2 ... divide both sides by 2
x = 8

I'm assuming after this point, you'll use x somehow to determine the length of segment AD. Unfortunately there isn't enough info provided to do that, but I'll let you take over from here.
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1+4=5<br> 2+5=12<br> 3+6= 21<br> 8+11= ?
saul85 [17]
8+11=19 but if you add 21+19+12+5=57.
7 0
3 years ago
Divide.<br><br><br>0.36 324<br><br><br>Enter your answer in the box.
ludmilkaskok [199]
0.36 divided by 324 is 0.00111111
6 0
1 year ago
-x+4(x+3)=-12<br>is this never true or always true
rodikova [14]

Answer: Never true.


Step-by-step explanation: Distribute the numbers: 4 times x is 4x, 4 times 3 is 12. Then you have the equation: -x+4x +12 = -12. Now, choose a random number, maybe -4. A negative plus a negative cancels out so you are left with 4-16(Because you distribute the number) +12 = -12. 4-16 is -12. -12 plus 12 equals 0.

7 0
3 years ago
Algebra 1 Word Problem
Ierofanga [76]

Answer:

otterbox costs $95; beats costs $210

Step-by-step explanation:

x = otterbox   y = beats

4x + 2y = 800      y = 2x + 20

4x + 2(2x + 20) = 800

4x + 4x +40 = 800

8x + 40 = 800

8x = 800 - 40

8x = 760

x = 760 / 8

x = 95  Otterbox costs $95 each


4x + 2y = 800

4(95) + 2y = 800

380 + 2y = 800

2y = 800 - 380

2y = 420

y = 420 / 2

y = 210   Beats costs $210


4(95) + 2(210) = 800

380 + 420 = 800

8 0
2 years ago
Read 2 more answers
a file that is 278 megabytes is being downloaded. If downloaded is 14.1% complete, how many megabytes been downloaded? To round
Gekata [30.6K]
14.1% of 278 is 39.2. So 39.2 megabytes have been downloaded.
4 0
3 years ago
Read 2 more answers
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