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zheka24 [161]
4 years ago
13

5. How many real-number solutions does the equation have?

Mathematics
2 answers:
Damm [24]4 years ago
6 0

Answer:

One solution

Step-by-step explanation:

Plug this equation in standard form to the quadratic formula.

That is -b plus or minus the square root of b squared -4ac and the whole thing divided by 2a.

Quadratic equations in standard form are written as ax squared plus bx plus c.

Your a for this equation is 9.

B is 12

C is 4.

Here is a simple rule to identify if an equation has one solution, two solutions, or no solution.

Your b squared minus 4ac is called your discriminant value.

if b squared minus 4ac is greater than 0, then there are two real-number solutions. Meaning there are two x-intercepts.

If b squared minus 4ac is equal to 0, then there is only one real solution.

Meaning there is only one x-intercepts.

if b squared minus -4ac is less than 0, then there are no real solution. Meaning there are no x-intercepts.

In this case, there discriminant value for this equation is 0, meaning this equation had one real-number solution.

Hope this helps!

Natalka [10]4 years ago
5 0
D.


because when your graph the lines they are on top of each other, meaning it has infinitely many solutions


i hope this helps! :)
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If length and width of a rectangle are in the ratio 4 to 5 and the perimeter of the rectangle is 144, find the dimensions of the
Zinaida [17]

Answer:

So dimension of rectangle are :

Length =  32

Width =  40

Step-by-step explanation:

Let the length of rectangle be 4x and width of rectangle be 5x.

Remember ratio of length and width is 4 to 5.

Perimeter of rectangle is given as 144.

i.e 2 (length +width) = 144

or 2 ( 4x + 5x ) = 144

Solving this for x, we get :

or 9x = 144/2

or 9x = 72

or x = 72/9

or x = 8

So dimension of rectangle are :

Length = 4 x = 4*8 = 32

Width = 5x = 5*8 = 40

3 0
4 years ago
6×_=44. six times what equals 44
BigorU [14]
The answer is 7.333, the threes are ongoing.

To find this answer you would just divide 44 and 6, since you are trying to find groups of the number stated.

Hope that helped.
8 0
4 years ago
Work out the surface area of the solid cuboid<br> L=5cm<br> W=2cm<br> H=5.3cm
Ludmilka [50]

Answer:

A = 94.2 cm²

Step-by-step explanation:

Given that,

Length, l = 5 cm

Width, b = 2 cm

Height, h = 5.3 cm

We need to find the surface area of the solid cuboid.

The formula for the surface area of the sold cubiod is given by :

A = 2(lb+bh+hl)

Substitute the values in the above formu;a

A = 2(5(2)+2(5.3)+(5.3)(5))

= 2(10+10.6+26.5)

= 2(47.1)

= 94.2 cm²

Hence, the required surface area is 94.2 cm².

3 0
3 years ago
2) Select one of your sides.
svlad2 [7]

Answer:

Step-by-step explanation:

nachos=3 =100%

1.5=50%

0.50=25%

0.25=12.5%

4 0
4 years ago
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Im on that to, maybe i can help you !! :)

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3 years ago
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