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
jasenka [17]
3 years ago
5

Trig. Ratios of perimeters and areas.

Mathematics
1 answer:
fenix001 [56]3 years ago
5 0

Answer:

8:9

Step-by-step explanation:

ratio of areas = (ratio of sides)²

64/81 = (ratio of sides)²

Square root both sides

8/9 = ratio of sides

You might be interested in
What is the slope of this line
Elenna [48]

Answer:

4

Step-by-step explanation:

rise/run = slope

As it goes to the left or adds by one, it goes up by 4

4/1

3 0
3 years ago
Read 2 more answers
SOMEONE PLEASE EXPLAIN THIS TO ME!!!! Ty! (Problems like 8-15)!!!!
Vilka [71]
Your suppose to round the percent!!!!!!
3 0
3 years ago
Read 2 more answers
The resting heart rate of 60 patients is shown in the frequency table below.
Murrr4er [49]

The standard deviation is 9.27. The typical heart rate for the data set varies from the mean by an average of 9.27 beats per minute.

<h3>How to determine the standard deviation of the data set?</h3>

The dataset is given as:

Heart Rate  Frequency

60 1

65 3

70 4

75 12

80 8

85 15

90 9

95 5

100 3

Calculate the mean using

Mean = Sum/Count

So, we have

Mean = (60 * 1 + 65 * 3 + 70 * 4 + 75 * 12 +  80 * 8 +  85 * 15 +  90 * 9 +  95 * 5 + 100 * 3)/(1 + 3 + 4 + 12 + 8 + 15 + 9 + 5 + 3)

Evaluate

Mean = 82.25

The standard deviation is

\sigma = \sqrt{\frac{\sum f(x - \bar x)^2}{\sum f -1}}

So, we have:

SD = √[1 * (60 - 82.25)^2 + 3 * (65 - 82.25)^2 + 4 * (70 - 82.25)^2 + 12 * (75 - 82.25)^2 + 8 * (80 - 82.25)^2 +  15 * (85 - 82.25)^2 +  9 * (90  - 82.25)^2 + 5 * (95 - 82.25)^2 + 3 * (100 - 82.25)^2)]/[(1 + 3 + 4 + 12 + 8 + 15 + 9 + 5 + 3 - 1)]

This gives

SD = √85.9533898305

Evaluate

SD = 9.27

Hence. the standard deviation is 9.27. The typical heart rate for the data set varies from the mean by an average of 9.27 beats per minute.

Read more about standard deviation at:

brainly.com/question/4079902

#SPJ1

5 0
2 years ago
Use the rational root theorem to list all possible rational roots for the equation.
Alik [6]

Answer:

The possible rational roots are

\pm 1, \pm 2,\pm3,\pm6,\pm \frac{1}{3},\pm \frac{2}{3}

Step-by-step explanation:

We have been given the equation 3x^3+9x-6=0 and we have to list all possible rational roots by rational root theorem.

The factors of constant term are 1, 2, 3,6

The factors of leading coefficient are  1,3,

From ration root theorem, the possible roots are the ratio of the factors of the constant term and the factors of the leading coefficient. We include both positive as well as negative, hence we must include plus minus.

\pm\frac{1,2,3,6}{1,3}\\\\ =\pm 1, \pm 2,\pm3,\pm6,\pm \frac{1}{3},\pm \frac{2}{3}


5 0
3 years ago
Read 2 more answers
Write in standard form Thirty- nine and fifteen hundredths
Ainat [17]
39.15 ^-^

YOUR WELCOME

sorry for caps lock lol
5 0
3 years ago
Other questions:
  • Find the product. Simplify your answer x^2-y^2/6*12/x-y
    12·1 answer
  • How do you long division
    11·1 answer
  • Well can someone help get the answer in at least 4 minutes tops
    15·2 answers
  • Graph the linear equation -4y=-5x-18​
    11·1 answer
  • Simplify 5 1/3•5 2/3
    5·2 answers
  • Don't skip i need help as soon as possible and please hurry i will give 20 points + Brainliest
    14·2 answers
  • How do i calculate an enlargement
    15·2 answers
  • How do the number line graphs of the solutions sets of -23 &gt; X and X2-23 differ?
    9·2 answers
  • how do i get the answer and what is the answer? im looking for a right answer not just someone who types in the mayo mayo
    5·1 answer
  • I do this so y'all can get extra point and complete challenges!
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!