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Artemon [7]
3 years ago
14

What is the next step in solving 0 = x2 + 6x – 10 by completing the square, after you cut 6 in half?

Mathematics
2 answers:
Lynna [10]3 years ago
6 0

Answer:

see below

Step-by-step explanation:

0 = x^2 + 6x – 10

Add 10 to each side

10 = x^2-6x

Take the coefficient of x

-6

Divide by 2

-6/2 =-3

Square it

(-3)^2 =9

Add 9 to each side

10+9 = x^2-6x+9

We use -3 for the square term

19 = (x-3)^2

Take the square root of each side

±sqrt(19) = x-3

Add 3 to each side

3±sqrt(19) = x

Eddi Din [679]3 years ago
6 0

Answer:

Step-by-step explanation:

0 = x^2 + 6x – 10

Add 10  

10 = x^2-6x

 -6

Divide by 2

-6/2 =-3

Square it

(-3)^2 =9

 10+9 = x^2-6x+9

-3 for the square ter

19 = (x-3)^2

 (19) = x-3

Add 3 to each side  3to(19) = x

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Plz help no link thank you
pochemuha

Answer:

x = 79

Step-by-step explanation:

This is an isosecles triangle so the bottom angles have equal measure

and since the sum of interior angles in a triangle is equal to 180

2x + 32 = 180 subtract 32 from both sides

2x = 158 divide both sides by 2

x = 79

7 0
3 years ago
A proportional equation does not have a what?
Jet001 [13]
A proportional equation does not have a Y-intercept greater than 0.
6 0
3 years ago
Please help quickly <br><br> AB=AD and BC=DC<br> x=?
Arisa [49]

Answer:

x = 110

Step-by-step explanation:

measure of abd is 35, meaning adb is also 35.

so dab + abd + adb is 180

=> x + 35 + 35 = 180

=> x + 70 = 180

=> x = 180-70

=> x = 110

110 degrees is the value of x.  

8 0
2 years ago
Please help me- AND PLEASE EXPLAIN
GuDViN [60]

Answer:

A=35, B=55, and C=25

Step-by-step explanation:

Angle A and the angle next to it are linear pairs, so you can subtract 145 from 180.

if you already know Angle A, and that the other angle is 90 degress, you can add 90+35 and subtract it from 180 to get Angle B

Angle C is paired with the angle across from it (I forgot what the term is called) so it is 25 degrees.

7 0
3 years ago
How do you solve this equation <br> 9/4 Divided by -3/4?<br> Anything will help <br> Thanks ^w^
gizmo_the_mogwai [7]

Answer:

you would have to multiply and Keep change flip keep the 9/4 change the division to miltiplication and flip -3/4 to 4/-3 then u slove

9/4 * 4/-3

Step-by-step explanation:

8 0
4 years ago
Read 2 more answers
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