2 years ago

X2+ 1 = 9

Mathematics

1 answer:

Aleks04 [339]2 years ago

3 0

Answer:

X = 4

Step-by-step explanation:

x2 + 1 = 9

We have to cross 1 over to the other side so that x becomes a value on its own. Because we are it over, the addition sign changes to subtraction which makes the expression,

x2 = 9- 1

x2 = 8

For x to stand alone we have to divide both sides by 2

x 2/2 = x

and 8/2 = 4

Therefore x=4 (Answer)

You might be interested in

Select all the points that are on the graph of the function defined by y = 2x + 3

ale4655 [162]

Answer:

b, d, e, g are the points

4 0

3 years ago

Read 2 more answers

HCF of 2 numbers is 18 and product of 2 numbers is 648 . Find the LCM of 2 numbers

Alla [95]

Answer:

what is HCF

but I will try

To sum up, the lcm of 2 and 8 is 8. In common notation: lcm (2,8) =

Step-by-step explanation:

7 0

2 years ago

you have at most $20.25 to spend at a store. Shirts cost $11.50 each, and pants cost $16 each. Let s be numbers of shirts and p

Readme [11.4K]

is this an algebra class? if so it just

11.50x + 16y = 20.25

4 0

3 years ago

What is the sum of the arithmetic series

docker41 [41]

Answer:

$S_ {12} = 192$

Step-by-step explanation:

The nth term of the given arithmetic sequence is

$U_n = 3 + 2n$

The first term of this series is:

$U_1 = 3 + 2(1) = 5$

The last term of this series is when

$n = 12$

$U_ {12}= 3 + 2(12)$

$U_ {12}= 3 + 24 = 27$

The sum of the first n terms of an arithmetic series when the first an last term is known is given by:

$S_n = \frac{n}{2}(a + l)$

Where a=5 is the first term and l=27 is the last term.

$S_ {12} = \frac{12}{2}(5 + 27)$

$S_ {12} =6(32) =19 2$

6 0

3 years ago

The equation of a circle is (x+10)^2+(y-4)^2=100

klemol [59]

Hello,

Answer 1
Center=(-10,4)
radius=10

4 0

3 years ago

Read 2 more answers