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kramer
3 years ago
10

how do you know when the solution of equations is a precise answer and when it is an approximate answer?

Mathematics
2 answers:
Nadya [2.5K]3 years ago
3 0

Answer:

an answer is precise when it is an exact number like 10, 2, or 123.

An answer is approximate when the decimal numbers are so close that could round it, and the rounded number would be equivalent to the original number. ex: 10.98 = 11

Liono4ka [1.6K]3 years ago
3 0
Well once you get a value for x and y and you plug it back to the equation both of the equation should be equal if the answer is wrong they will not be equal
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A rope is 84 meters long is cut int two pieces so that one piece is 18 meters longer than the other. What is the length of each
Tpy6a [65]

Answer:

33 meters

51 meters

Step-by-step explanation:

84-18= 66

66/2= 33

33+18= 51

Check your answer:

51+33=84

5 0
3 years ago
Read 2 more answers
CAN SOMEONE PLEASE HELP ME WITH THIS !!!!!
STatiana [176]

Answer:

60

Step-by-step explanation:

5 x 12

60


4 0
3 years ago
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The hypotenuse of a right triangle is four times the length of one of the legs. The length of the other leg is 1500⎯⎯⎯⎯⎯⎯⎯⎯√ fee
Mrac [35]

Answer:

Step-by-step explanation:

So this is just playing with the pythagorean theorem

a^2 + b^2 = c^2 with a and b as legs and c as the hypotenuse.

Let's say a is equal to 1500 so then c is 4 times b

1500^2 + b^2 = (4b)^2  Now we just treat this like a normal algebraic expression

2,250,000 = 16b^2 - b^2

2,250,000 = 15b^2

150,000 = b^2

sqrt(150,000) = b

100sqrt(15) = b

You can check this now.

1500^2 + sqrt(150,000)^2 = c^2

sqrt(2,250,000 + 150,000) = c

sqrt(2,400,000) = c

400sqrt(15) = c Which fits the requirement of c = 4b

7 0
3 years ago
If the diameter of a circle is 20 cm, what is the area?
katovenus [111]

Answer:

A = 100 pi cm^2

Step-by-step explanation:

A = pi(r^2)

A = pi(10^2)

A = pi(100)

A = 314.16 '

Convert to pi units.

314.16 ---> 100pi cm^2

3 0
3 years ago
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Find area of shaded. Exact answer of pi
xenn [34]
Area circle = pi(6^2) = 36pi
Area right triangle = 1/2(6)(6) = 18
Area shaded = 36pi - 18
4 0
3 years ago
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