3 years ago

Please help with my straight lines!!

Mathematics

1 answer:

Mrrafil [7]3 years ago

8 0

Where is the question

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Find the solutions of the quadratic equation -9c² +2 +3 = 0.

Tresset [83]

Given that,

An equation : -9c² +2c +3 = 0

To find,

Find the value of x.

Solution,

We have, -9c² +2c +3 = 0

We can solve it using the formula as follows :

$x=\dfrac{-b\pm \sqrt{b^2-4ac}}{2a}$

Here, a = -9, b = 2 and c =3

Put the values,

$c=\dfrac{-2\pm \sqrt{(2)^2-4(-9)(3)}}{2(-9)}\\\\c=\dfrac{-2+\sqrt{(2)^{2}-4(-9)(3)}}{2(-9)}, \dfrac{-2-\sqrt{(2)^{2}-4(-9)(3)}}{2(-9)}\\\\c=-0.47, 0.69$

So, the solution are -0.47 and 0.69.

8 0

3 years ago

Joe ate as much pieces of halloween candy as Ed. Together they ate 48 pieces!

nataly862011 [7]

Answer:

they both ate 24 pieces!

Step-by-step explanation:

if joe and ed ate the same amount of candy, 48÷2= 24

24+24=48

4 0

2 years ago

A family smoothie recipe calls for strawberry juice and apple juice. This equation represents the proportional relationship betw

Llana [10]

Answer:number of juice and fruits

Step-by-step explanation:

juice and fruits

6 0

3 years ago

Solve each of the quadratic equations. 3x=0.5x^2 0=5x^2-2x+6

Kipish [7]

Answer:

6x=0.10x< 2

Step-by-step explanation:

8 0

3 years ago

Someone help me do the first problem so that I can do the rest

Novay_Z [31]

Answer:

C = 69.1 ft

Step-by-step explanation:

The circumference is given by

C = 2*pi*r

C = 2* 3.14 * 11

C =69.08

Round to the nearest tenth

C = 69.1 ft

7 0

3 years ago