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pantera1 [17]
3 years ago
8

Quadratic 4x2+8x+27=88

Mathematics
2 answers:
sp2606 [1]3 years ago
8 0

Answer:

Step-by-step explanation:

Hunter-Best [27]3 years ago
7 0

Answer:

4x²+8x+27=88

x =   \frac{2 -  \sqrt{65} }{2}  \\ x =  \frac{2 +  \sqrt{65} }{2}  \\

x= 3.03 , –5.03

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Answer:

6

Step-by-step explanation:

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6 0
2 years ago
Evaluate (−3) ^−3
Fynjy0 [20]
<h3>Answer:</h3>

-1/27

<h3>Solution:</h3>
  • If we have a number to a negative power, we flip the number over, like so:
  • -3- > \displaystyle\frac{1}{(-3)^3}
  • Simplify:
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Hope it helps.

Do comment if you have any query.

4 0
2 years ago
PLS HELP.... If 4x^2 + bx + 9 = 0, where b is the constant, has exactly one solution, what is a possible value of b ?
IgorLugansk [536]
You can use the discriminant rule, which is :
b^2 -4ac
“exactly one solution” means that it is equal to zero
so:
b^2 -4(4)(9)=0
b^2 -4(36)=0
b^2 -144=0
b^2=144
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hope this helps !
3 0
2 years ago
Read 2 more answers
Write as an ordered pair. 4x+2y=16 and -4y+x=4
Margaret [11]

Answer:

(4,0)

Step-by-step explanation:

4x+2y=16

-4y+x=4

Multiply the first equation by 2

2(4x+2y)=16*2

8x +4y = 32

Add the 2nd equation

8x +4y = 32

x  -4y     =4

--------------------

9x            =36

Divide each side by 9

9x/9 = 36/9

x=4

Now solve for y

-4y +x =4

-4y +4 = 4

Subtract 4 from each side

-4y +4-4=4-4

-4y =0

Divide by -4

-4y/-4 =0/-4

y=0

(4,0)

4 0
3 years ago
Read 2 more answers
BRAINLIEST GUARANTEED. Please Answer and show work. I'm not sure if it's correct though.
Sauron [17]

Answer:

They all look right but i'm not sure about the last one?

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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