All categories

3 years ago

Please Help!!!

1 answer:

6 0

This polynomial does not factor so you have to complete the square or use Quadratic formula.
x^2 + 6x + 7 = 0
Using completing the square, subtract 7 from both sides.
x^2 + 6x = -7
divide 6 by 2 = 3, square 3 = 9, add 9 to both sides.
x^2 + 6x + 9 = 2
(x + 3)^2 = 2
Take the sqrt of both sides
x + 3 = + - sqrt 2
subtract 3 from both sides
x = - 3 + - sqrt 2
This is not an answer choice but it is the correct answer. You either typed the choices incorrectly or the equation incorrectly.

You might be interested in

Here is a pattern of dots.

EleoNora [17]

The dots in the patterns are illustrations of a sequence or progression

The number of dots in step 10 is 84
The number of dots in step n is (n -1)^2+ 3

<h3>The number of dots in step 10</h3>

From the pattern, we have:

Step 0 = 3 dots
Step 1 = 4 dots
Step 2 = 7 dots
Step 3 = 12 dots

So, we have the following pattern

$T_n = (n -1)^2+ 3$

When n = 10, we have:

$T_{10} = (10 -1)^2+ 3$

T10 = 84

This means that, there will be 84 dots in step 10 and there will be (n -1)^2+ 3 dots in step n

Read more about sequence at:

brainly.com/question/7882626

3 0

2 years ago

Holly spends

maks197457 [2]

Answer:

dsg

Step-by-step explanation:

4 0

3 years ago

Find x for the problem

oee [108]

Answer:

14.4

Step-by-step explanation:

sin x = 24/30

x = sin^-1 (24/30) = 53.13

sin 53.13 = x/18

x = sin 53.13 x 18 = 14.4

6 0

2 years ago

If you know how to do this pls help thankyou!

dmitriy555 [2]

Answer : 49

I hope you understand sorry for the ugly writing

4 0

3 years ago

Write a ratio for the situation in three ways, comparing the first quantity to the second quantity. In Largo City, about one in

saul85 [17]

Answer:

Step-by-step explanation:

1/9

(1*4) / (9*4) = 4/36

(1*4) / (9*4) = 5/45

The first one is the ratio as it is stated in the problem.

The second one multiplies top and bottom by 4

The third one multiplies top and bottom of the top ratio by 5.

3 0

2 years ago