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dexar [7]
3 years ago
12

A function is shown f=(x)=x^2+ 2X-3

Mathematics
1 answer:
Brut [27]3 years ago
8 0

Answer:

x intercepts at (-3,0), and (1,0)

there is a minimum at (-1,-4)

Step-by-step explanation:

Please see attached image for the requested graph of the function f(x) = x^2+2x-3, and observe that the crossings of the x-axis are at the points (-3,0), and (1,0) , marked in red in the image.

We can also see that there is no maximum, but a minimum value, and located at the point (-1,-4) [marked in green in the image]

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Order The numbers from least to greatest <br><br> 0.453, 0.35, 4/5
Irina18 [472]

Answer:

Step-by-step explanation:

0.35

0.453

4/5

6 0
3 years ago
What is 9 divided by 765 <br><br> please show the work i really need help
BartSMP [9]
765 / 9 = 85
9*100 = 900 but this is too much
900 - 765 = 135
9 goes into 135 15 times (9*10=90 which leaves 45 which is 9*5 so 5+10) so you minus 15 from the 100 that made 900
so 100 - 15 = 85
5 0
3 years ago
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I know how to find the distance of two coordinates but not three could someone help me on this??
Angelina_Jolie [31]
Find distance between R and S and then between S and T and add them together
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3 years ago
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Forty per cent of all those who applied for the job had experience. If 80 people had
Zielflug [23.3K]

Answer:

total people = X = 200

Step-by-step explanation:

total people = X = 200

People having experience = 80

Percent haing experience = 40 % = 40 / 100

40/ 100  x X = 80

x= 80  x 100 / 40 = 200

I hope im right!!

8 0
3 years ago
A riverboat travels 54 km downstream in 2 hours. It travels 57 km upstream in 3 hours. Find the speed of the boat and the speed
irakobra [83]

Here we must write and solve a system of equations to find the speed of the boat and the speed of the stream. We will find that the boat's speed is 23km/h and the river's speed is 4km/h.

First, remember the relation:

Distance = Speed*Time.

Now let's define the variables we will be using:

  • B = boat's speed
  • R = river's speed.

When the boat travels downstream, the total speed of the boat is the speed of the boat plus the speed of the river, and we know that in that case it travels 54km in 2 hours, then:

54km = (B + R)*2h

When the boat travels upstream, we must subtract the speed of the river. In that case, we know that the boat travels 57km in 3 hours, then we have:

57km = (B - R)*3h

Then our system of equations is:

54km = (B + R)*2h

57km = (B - R)*3h

To solve this, first, we need to isolate one of the variables in one of the equations, let's isolate B in the second one:

57km = (B - R)*3h

57km/3h + R = B

19 km/h + R = B

Now we can replace that in the other equation:

54km = (B + R)*2h

54km/2h = B + R

27 km/h = B + R = (19 km/h + R) + R

Now we can solve this for R:

27 km/h = 19km/h + 2*R

27 km/h - 19km/h = 2*R

8 km/h = 2*R

(8km/h)/2 = 4km/h = R

Now that we know the value of R, we can use:

B = 19 km/h + R  = 19 km/h + 4km/h = 23 km/h

So the boat's speed is 23km/h and the river's speed is 4km/h.

If you want to learn more, you can read:

brainly.com/question/12895249

5 0
3 years ago
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