All categories

3 years ago

Solve x2 – 4 = 5 by graphing the related function.

Mathematics

2 answers:

Neko [114]3 years ago

7 0

Answer:

x2-4=5

+4 +4

x2=9

square root both the x and 9

x=3

kozerog [31]3 years ago

6 0

Answer:

x2 - 4=5

+4 +4

x2 = 9

x=+-3

Step-by-step explanation:

What you do is add 4 on each side because, you do the same thing that you did to the other side so you'll add 5+4=9 so you'll have 2x=9 and then you will take the square root of 9 and then you will get you're answer which is x=3.

I hope this helped y'all!!!!!

You might be interested in

(5, -1), (2.4) answer 1: 5/3 answer 2: -5/3

andreyandreev [35.5K]

Slope= -5/3 when using y^2-y^1 divided by x^2-x^1

8 0

3 years ago

Find the L.C.M of 6,9

Oxana [17]

Answer:

Lcm=18

Step-by-step explanation:

First do prime factorization of 6 and 9

common factor of 6 is 3

and remaining factor is 2×3

Now,

C.F×R.F= 3×2×3

=18

6 0

2 years ago

Find the value of x if y =1/4x and 5x-8y=33

Verdich [7]

Answer:

x=11

Step-by-step explanation:

y= 1/4x

5x-8y=33

5x-8(1/4x)=33

x=11

8 0

3 years ago

Stephen & Richard share a lottery win of £2950 in the ratio 2 : 3. Stephen then shares his part between himself, his wife &a

horsena [70]

Answer:

Stephen's wife got £354 more than his son.

Step-by-step explanation:

Given:

Amount of Lottery = £2950

Now Given:

Stephen & Richard share a lottery amount in the ratio 2 : 3

Let the common factor between them be 'x'.

So we can say that;

$2x+3x=2950\\\\5x = 2950$

Dividing both side by 5 we get;

$\frac{5x}{5}=\frac{2950}{5}\\\\x = 590$

So we can say that;

Stephen share would be = $2x =2\times 590 = \£1180$

Now Given:

Stephen then shares his part between himself, his wife & their son in the ratio 3 : 5 : 2.

Let the common factor between them be 'y'.

So we can say that;

$3y+5y+2y=1180\\\\10y=1180$

Dividing both side by 10 we get;

$\frac{10y}{10}=\frac{1180}{10}\\\\y=118$

So Stephen's wife share = $5y = 5\times 118= \£590$

And Stephen's son share = $2y=2\times118 =\£236$

Now we need to find how much more her wife got then her son.

To find how much more her wife got than her son we will subtract Stephen's son share from Stephen's wife share.

framing in equation form we get;

Amount more her wife got than her son = $590-236 = \£354$

Hence Stephen's wife got £354 more than his son.

3 0

3 years ago

Use an area model to find the quotient: 132 ÷ 3 = ________.

7nadin3 [17]

Answer:

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers