3 years ago

Solve for x. 10x^2=29x-21 does anyone know this

1 answer:

Natasha2012 [34]3 years ago

4 0

$10x^2=29x-21 \\
10x^2-29x+21=0\\
\Delta=(-29)^2-4\cdot10\cdot21=841-840=1\\
\sqrt{\Delta}=\sqrt1=1\\
x_1=\frac{-(-29)-1}{2\cdot10}=\frac{28}{20}=\frac{7}{5}\\
x_2=\frac{-(-29)+1}{2\cdot10}=\frac{30}{20}=\frac{3}{2}\\$

You might be interested in

please help I'm a week behind.Use the given scale factor and the side lengths of the scale drawing to determine the side lengths

kkurt [141]

2:1 means its by a factor of 1/2. Meaning you just use the original number and divide by 2. The answer is B

4 0

3 years ago

If a faucet drips 2ml of water every second, how much water will it spill waste in 2 days?

Svet_ta [14]

Answer:

$\boxed{345,600 mL}$

Step-by-step explanation:

Hey there!

Well first we need to find the amount of seconds in a day,

24hrs in a day * 60 min in an hour

= 1440 minutes in a day

1440 min • 60 secs in a minute

= 86,400 seconds in a day

So now we do 2*86400 = 172800

172800 mL in a day

172800 * 2

= 345600 mL in 2 days

Hope this helps :)

5 0

3 years ago

Bobby has eaten bubblegum sticks. He has two friends that he wants to share with. How will he split the gum so that each of the

Mariana [72]

He will split the gum into thirds if he wants more for himself and so his friends all get an equal amount

7 0

4 years ago

(45 POINTS!!!) Which is the equation of a parabola with a directrix at y = −3 and a focus at (−2, 3).

Tomtit [17]

Answer:

y = −one twelfth(x − 2)2

Step-by-step explanation:

y = −one twelfth(x − 2)2

6 0

3 years ago

01:59:51

IceJOKER [234]

Answer:

L+2=8

Step by step explaintion.

the length is so much longer than some multiple of the width

or perhaps the area of the rectangle.

8 0

3 years ago