MATHEMATICS MIDDLE SCHOOL

What are the roots of the equation x^2+4x-16=0

Answers

Answer 1
Answer: -2-2root5, -2+2root5

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Brainly give one example of when you would draw a diagram to solve an angle measurement problem

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making a new type of stop sign

A builder has bought a plot of land on which he will build a house. The plot is a rectangle with an area of 50,000 square feet. The following coordinates have been marked on a coordinate plane by the builder; (60, 60), (60, 110), and (160, 110). What is the coordinate of the fourth vertex of the rectangle plot?

Answers

The answer (160, 60) because my sister taught me if it is a square or a rectangle like the coordinates that you gave me, take out the numbers that are the same and in the same area as the number is. 
160,60 s the 4th vertex 

What are equivalent fractions for one fourth

Answers

There are and infinite number of answers:
1/4 = 2/8, 3/12, 4/16, 5/20, 6/24, 7/28....

Just multiply the numerator, in this case 1, and denominator, 4, by the same number
10/40
2/8
3/12
4/16
5/20

What is the product and .18 .52

Answers

Okay, because product means the answer to a multiplication problem, you would multiply 0.18 and 0.52. The would equal 0.0936. Hope this helps! :D Let me know if you have any questions!

There were 4 people in the room. Each has 3/5 of a bottle ink left. How many markers worth of ink were there in the room

Answers

To answer this you would just multiply 4*3/5 because 4 people have 3/5 ink left. The easiest way to do that is change 3/5 into a decimal.
3/5 = 0.6
4*0.6 = 2.4
So, there are 2.4 markers worth of ink in the room.
Hope this helps!

Identify a number that results in a 4-digit number when 156,350 is subtracted from it

Answers

Answer:

A number is 157,355

Step-by-step explanation:

We are given a six digit number 156,350. If we subtract 156,350 from a unknown number (x) rsult should be 4 digit number.

Let we suppose 4-digit number smallest as well largest

Smallest 4-digit number = 1000

If we subtract 156,350 from x to get 1000

x-156350=1000

x=156350+1000

x=157,350

Largest 4-digit number = 9999

If we subtract 156,350 from x to get 9999

x-156350=9999

x=156350+9999

x=166,349

Four digit number should be lie between 157,350 to 166,349

We can choose any number between them

Thus, 157,355 is a number to get 4-digit number when 156,350 is subtract.

157,350 will do the job.
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