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PilotLPTM [1.2K]
2 years ago
10

To solve the equation −x − 3 = x2 − 2x− 15, you could graph of the following system. y = −x − 3 y = x2 − 2x − 15 Use the graph o

f this system to identify all solutions of −x − 3 = x2 − 2x − 15.

Mathematics
2 answers:
bixtya [17]2 years ago
7 0

Complex solutions are X=4,-3

Bond [772]2 years ago
4 1

Answer:

The solution of the equation graphically are (-3,0) and (4,-7).                        

Step-by-step explanation:

Given : Equation -x-3 = x^2 -2x- 15

To find : Solve the equation using graph?

Solution :

Let y=-x-3 be the equation (1)

y= x^2 -2x- 15 be the equation (2)

If we plot the equation (1) and (2) in the graph then the intersection point gives you the solution of the equation.

Equation (1) y=-x-3 is shown in blue line.

Equation (2) y=-x-3 is shown in red line.

The intersection points of both the equation are (-3,0) and (4,-7).

Therefore, The solution of the equation graphically are (-3,0) and (4,-7).

Refer the attached figure below.

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Two similar triangular prisms have volumes of 27 square meters and 64 square meters.
Inessa [10]

Answer:

9/16

Step-by-step explanation:

First we need to know that the dimensions ratio, the surface area ratio and the volume ratio have the following relation:

volume ratio = dimension ratio ^3

surface area ratio = dimension ratio ^2

The volume ratio between small prism and the large prism is 27 / 64.

To find the dimensions ratio, we need to take the cubic root of the volume scale:

dimension ratio = 3√(27/64) = 3/4

Now, to find the surface area ratio, we just need to make the square of the dimension ratio:

surface area ratio = (3/4)^2 = 9/16

8 0
2 years ago
A rectangle has 3 square feet and width 1/2 foot. What is the length of the rectangle
Yakvenalex [24]

Answer:

We Know, Area = Length * Width

Here, A = 3

W = 1/2

Substitute it into the expression,

3 = L * 1/2

L = 3/ 1/2

L = 3/2 ft²

So, the length of the rectangle would be 3/2 ft²

<u>Hope this helps! :)</u>

<u></u>

8 0
3 years ago
Pls help I struggling a lot pls pls pls I need pro math expert
Soloha48 [4]

Answer:

Option: h\leq 16

Step-by-step explanation:

<u>Looking for key words in the problem:</u>

"At Most" represents important key words, meaning the maximum amount of hotdogs that are at the barbecue.

<u>Inequality:</u>

h\leq 16

h \leq 16 represents the maximum amount of hotdogs that has to be at the barbecue, also represents less than 16 can be cooked.

3 0
2 years ago
Simplify the expression
natka813 [3]

Answer:

its B bro come on

Step-by-step explanation:

ok good

4 0
2 years ago
The velocity v of an object rolled down an inclined plane is given by the formula v=
drek231 [11]

Answer:

d = v/53

Step-by-step explanation:

Divide both sides by 53 to make d the subject of the formula

7 0
3 years ago
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