Ask question

Ask question

All categories

4 years ago

10

Please Help!!!

1 answer:

iren2701 [21]4 years ago

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

I dont know how to do surface area

timama [110]

Answer: the equation for SU is 2(lb+bh+hl)

Step-by-step explanation: L stands for length B stands for base. H stand for height multiply that by 2

3 0

3 years ago

NOTE: Angles not necessarily drawn to scale.

Dafna11 [192]

Its 157, because 180-23= 157 degrees.

3 0

3 years ago

Wendell is looking over some data regarding the strength, measured in Pascals (Pa), of some building materials and how the stren

Slav-nsk [51]

The logarithmic model for the length when the strength is of 8 Pascals is given by:

$f^{-1}(8) = \log_{2}{8} = \log_2{2^3} = 3$
That is, the length is of 3 units.

<h3>What is the function?</h3>

The strength in Pascals for a building of length x is given by:

$f(x) = 2^x$

To find the length given the strength, we apply the inverse function, that is:

$2^y = x$

$\log_{2}{2^y} = \log_2{x}$

$y = \log_2{x}$

Hence, when the strength is of 8 Pascals, $x = 8$ , and the length is given by:

$f^{-1}(8) = \log_{2}{8} = \log_2{2^3} = 3$

You can learn more about logarithmic functions at brainly.com/question/25537936

6 0

2 years ago

Last week Tiffany practiced her basson a total of 7 hours.This was 2 hours less than the previous week.How many hours did Tiffan

lianna [129]

5 hours 7-2=5. did it help?

5 0

3 years ago

What is the area of the segment?

SVEN [57.7K]

Answer:

28.54 ft²

Step-by-step explanation:

Area of segment = $(\frac{\theta * \pi}{360} - \frac{sin(\theta)}{2}) * r^2$

Where,

$\theta = 90$

r = 10 ft

Plug in the values

$(\frac{90 * \pi}{360} - \frac{sin(90)}{2}) * 10^2$

$(0.7854 - 0.5) * 100$

$(0.2854) * 100$

= 28.54 ft²

6 0

3 years ago