Ask question

Ask question

All categories

tensa zangetsu [6.8K]

3 years ago

12

If using the method of completing the square to solve the quadratic equation

1 answer:

kap26 [50]3 years ago

8 0

Answer:

225/4

Step-by-step explanation:

x²– 15x – 23 = 0

To complete the square

We take to coefficient of the x term

-15

divide by 2

-15/2

Square it

225/4

Add it to each term

You might be interested in

X - 5(x + 1) = 3x + 2<br> answer , but show work pls.

Nitella [24]

Answer: x = -1

Step-by-step explanation:

Starting:

x-5(x+1)=3x+2

Simplify the left side:

-4x-5=3x+2

Move all the terms with an x to the left:

-7x-5=2

Move all the terms without an x to the right:

-7x=7

Divide both sides by -7:

x = -1

3 0

3 years ago

The scale on a map says that 6 cm represents 15 km. What distance on the map in centimeters represents 20 kilometers?

ale4655 [162]

Answer:

8 centimeters.

Step-by-step explanation:

$6cm\ on\ map\ -> 15km\\$

Divide 3 both sides:

$2cm\ on\ map\ -> 5km$

Multiply 4 on both sides:

$8cm\ on\ map\ -> 20km$

8cm on the map represents 20km.

4 0

4 years ago

Calculate the volume of the solid. Round answer to the nearest hundredth.

alex41 [277]

Answer:

191.1 cm^3

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

A city council consists of six Democrats and six Republicans. If a committee of seven people is selected, find the probability

Reika [66]

To 3 decimal places.

8 0

3 years ago

How do you write 608,000 in scientific notation

baherus [9]

6.08*10^5
hope this helps u out :D

3 0

3 years ago

Read 2 more answers