1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
jeyben [28]
3 years ago
11

How can estimating be helpful?

Mathematics
2 answers:
yuradex [85]3 years ago
7 0
It helps you get the correct answer
Mars2501 [29]3 years ago
4 0
Estimating can simplify an answer, and can be used as a reference to compare the actual answer to. If the estimate and the actual answer are similar, your answer is typically correct.
You might be interested in
Write an expression equivalent to -12/27 (it is a fraction)
rusak2 [61]
-4/9 is simplified of -12/27
6 0
3 years ago
Classify the following triangle. Check all that apply
kramer
D and E. If I remember right that should be the answer.
7 0
3 years ago
Read 2 more answers
The area of the circle below is 28.26. What is the diameter?
svet-max [94.6K]
I think the answer would be 9 or 18 not really sure
3 0
3 years ago
Simplify 5(x + 3) - 9x+4.<br>O A. 14x+7<br>O B.-4x+19<br>O C. 14x+19<br>D. -4x+7​
Julli [10]

Answer:

B

Step-by-step explanation:

distribute

5x+15-9x+4

combine like terms

-4x+19

8 0
3 years ago
Read 2 more answers
The eccentricity e of an ellipse is defined as the number c/a, where a is the distance of a vertex from the center and c is the
Anna71 [15]

Answer:

Check below, please.

Step-by-step explanation:

Hi, there!

Since we can describe eccentricity as e=\frac{c}{a}

a) Eccentricity close to 0

An ellipsis with eccentricity whose value is 0, is in fact, a degenerate one almost a circle. An ellipse whose value is close to zero is almost a degenerate circle. The closer the eccentricity comes to zero, the more rounded gets the ellipse just like a circle. (Check picture, please)

\frac{x^2}{a^2} +\frac{y^2}{b^2} =1 \:(Ellipse \:formula)\\a^2=b^2+c^2 \: (Pythagorean\: Theorem)\:a=longer \:axis.\:b=shorter \:axis)\\a^2=b^2+(0)^2 \:(c\:is \:the\: distance \: the\: Foci)\\\\a^2=b^2 \\a=b\: (the \:halves \:of \:each\:axes \:measure \:the \:same)

b) Eccentricity =5

5=\frac{c}{a} \:c=5a

An eccentricity equal to 5 implies that the distance between the Foci has to be five (5) times larger than the half of its longer axis! In this case, there can't be an ellipse since the eccentricity must be between 0 and 1 in other words:

If\:e=\frac{c}{a} \:then\:c>0 , and\: c>0 \:then \:1>e>0

c) Eccentricity close to 1

In this case, the eccentricity close or equal to 1 We must conceive an ellipse whose measure for the half of the longer axis a and the distance between the Foci 'c' they both have the same size.

a=c\\\\a^2=b^2+c^2\:(In \:the\:Pythagorean\:Theorem\: we \:should\:conceive \:b=0)

Then:\\\\a=c\\e=\frac{c}{a}\therefore e=1

7 0
2 years ago
Other questions:
  • What is the area of the triangle given in the picture?
    9·2 answers
  • While traveling in England, Sonia noticed that the price of gas was 1.4 pints per liter. She wondered how that compares to the p
    8·1 answer
  • Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar(s).
    10·2 answers
  • ANSWER FAST ITS URGENT
    6·1 answer
  • What is the slopeOf a line that is perpendicular to a line who’s equation is 8y-5x=11
    12·1 answer
  • 4. The measures of segment BS and segment PS are both 4.5 feet and m_PBS = 56°.
    8·1 answer
  • Joel and Matt must together save at least $50.00 to buy a special present for their mother.
    5·1 answer
  • A survey of 30 students in line during registration revealed that 5 were Math majors,
    14·1 answer
  • A theme park owner charges
    10·1 answer
  • HELPPP PLS
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!