How can I estimate the square root of a non-perfect square

Mathematics

2 answers:

BlackZzzverrR [31]2 years ago

8 0

Hope this helped you :)

allsm [11]2 years ago

3 0

Use the two perfect squares it falls between to give you an accurate point of reference.

For example, \/```28 (square root of 28)
The square root of 28 falls between the square root of 25 and 36, so you know the value will be between 5 and 6.

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A train is moving at a rate of 65 miles/hour toward a railroad marker located 200 miles away. Which equation could be used to fi

yulyashka [42]

Answer:

h = 196/65

Step-by-step explanation:

65 miles /1 hour is the moving rate

200 miles is the distance to the railroad maker

h = ?

200- 4 miles = 196 miles were left behind the train

65miles /1 hour , 130miles/2hours , ..196miles/ ?hours

h = 196/65 = 3 hours and 1/65 minutes from an hour = 3 hours and 12/13 min.

60/ 65 = 12/13

5 0

1 year ago

Solve the system <br> 5x+3y=-9 &- 2x+y=8

lianna [129]

5x+3y=-9
-2x+y=8

The first step is the trickery (and quite frankly, hardest to explain) part. You need to multiply one equation by a number that will create one variable to be the negative version of the other...(Confusing, right? Don't worry, I'll show you)

We are going to solve for X first.

We will multiply the second equation by -3
5x+3y=-9
-3(-2x+y)=(-3)8

Now simplify:
5x+3y= -9
6x-3y= -24

Now combine the two equations (add them together)
11x= -33
Divide by 11
X=-3

Now plug X in to one of the first equations:
5(-3)+3y= -9
-15+3y =-9
3Y= 6
Y= 2

So your final answer is:
x= -3
Y= 2

Hope this helps!

3 0

3 years ago

Read 2 more answers

What is the image point of (-1,-7) after a translation left 4 units and up 2 units?

bearhunter [10]

Step-by-step explanation:

hope this helps dear

it forms a right angle triangle I guess ☆☆