3 years ago

Solve this equation using an algebraic method.

Mathematics

1 answer:

kupik [55]3 years ago

7 0

(x+4) (x-4) = 9
(x^2 - 16) = 9
x^2 = 25
x=5 & x = -5

You might be interested in

What is the equation of the line that passes through (-6,3) and (-6,6)

Marysya12 [62]

Answer:

use y=mx+b format to find the y-intercept

Step-by-step explanation:

the y-intercept is b of course

the y-intercept is where the y meets a line

the equation will be _=_x+_

3 0

3 years ago

N is m% of what?<br><br> pls answer asap thx!

beks73 [17]

Answer:

m% = m/100

Step-by-step explanation:

what = a variable ... "x". for example.

"is" means "="

"of" means multiply

n = (m/100)•x

3 0

3 years ago

The sum of two numbers is -316. One number is 94 less than the other. Find the numbers.

Oksanka [162]

Answer:

-94+-316=-410

-410+94=-316

Step-by-step explanation:

5 0

4 years ago

Read 2 more answers

Which is a true statement comparing the graphs of x^2/3^2 - y^2/4^2= 1 and y^2/3^2 - x^2/4^2 = 1?

laila [671]

Answer: B) The lengths of both transverse axes are the same.

Step-by-step explanation: Given Hyperbola equations :

$\frac{x^2}{3^2}-\frac{y^2}{4^2}=1$ and

$\frac{y^2}{3^2}-\frac{x^2}{4^2}=1$

First one : $\frac{x^2}{3^2}-\frac{y^2}{4^2}=1$ is a Horizontal Hyperbola.

a = 3 and 2a = 6.

Length of transverse axis = 6.

And second one : $\frac{y^2}{3^2}-\frac{x^2}{4^2}=1$ is a Vertical Hyperbola.

b=3 and 2b = 6

Length of transverse axis = 6.

The lengths of both transverse axes are the same.

Therefore, correct option is B option :

<h3>The lengths of both transverse axes are the same.</h3>

3 0

4 years ago

Read 2 more answers

Oscar and Stella go birdwatching. Oscar sees 7 birds. Stella sees 28 birds. How many times as many birds as Oscar does Stella Se

ella [17]

Answer:

4 times as many birds

Step-by-step explanation:

28 divided by 7 = 4

5 0

3 years ago