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andreyandreev [35.5K]
3 years ago
15

Help with number 15 plz

Mathematics
2 answers:
soldier1979 [14.2K]3 years ago
6 0

Answer:

9.11

Step-by-step explanation:

√83=9.110433579

round 9.110433579 to get 9.11

bulgar [2K]3 years ago
4 0
Your answer is 9.11043357914 and if you have to round i’m pretty sure it’s just 9 ;)
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A zoologist researched the feeding habits of lemurs. she collected data by studying the lemurs in a zoo exhibit for a one-month
blsea [12.9K]

The  kind of statistical study the zoologist conducted was D. observational study.

<h3>What is observational study in research?</h3>

An observational study  serves as a study  whereby the researcher simply observes the subjects without interfering with it.

This is different from carrying out experiment on them or just a theoretical approach.

Learn more about research on:

brainly.com/question/968894

#SPJ1

CHECK THE COMPLETE QUESTION BELOW:

A zoologist researched the feeding habits of lemurs. She collected data by studying the lemurs in a zoo exhibit for a one-month period and drew conclusions based on her data. What kind of statistical study did the zoologist conduct? A. survey B. theoretical study C. experiment D. observational study

3 0
2 years ago
Find the extreme values of the function f(x, y) = 4x2 + 6y2 on the circle x2 + y2 = 1.
julia-pushkina [17]

Answer with Step-by-step explanation:

We are given that

f(x,y)=4x^2+6y^2

Let g(x,y)=x^2+y^2=1

We have to find the extreme values  of the given function

\nabla f(x,y)

\nabla g(x,y)=

Using Lagrange multipliers

\nabla f(x,y)=\lambda \nabla g(x,y)

f_x=\lambda g_x

8x=\lambda 2x

Possible value x=0 or \lambda=4

If x=0 then substitute the value in g(x,y)

Then, we get y=\pm 1

f_y=\lambda g_y

12y=\lambda 2y

If \lambda=4 and substitute in the equation

Then , we  get possible value of y=0

When y=0 substitute in g(x,y) then we get

x=\pm 1

Hence, function has possible  extreme values at points (0,1),(0,-1), (1,0) and (-1,0).

f(0,1)=6

f(0,-1)=6

f(1,0)=4

f(-1,0)=4

Therefore, the maximum value of f  on the circlex^2+y^2=1  is f(0,\pm1)=6 and minimum value of f(\pm1,0)=4

7 0
3 years ago
What is the original price of a hoverboard if it was marked up 80% and sold for final price of $300 (after mark-up).
victus00 [196]

Answer:

60

Step-by-step explanation:

300 divided by 100, gives you the 1% (which in this case is 3)

3 x 80 (markup) gives you 240

300- 240(markup) gives you<em> </em><em><u>60</u></em>

7 0
3 years ago
Read 2 more answers
Given w = 1 + i, what is arg (w) and |w|? Explain how you got your answer.
kirill [66]

Answer:

arg (w)=π/4 and  |w|=√2

Step-by-step explanation:

If z= x+iy is a complex number, then |z| is given by √ ( x²+y² ).

And the argument (z) is given by Ф = tan⁻¹ ( y/x ) where -π < x < π.

Now, in our case w= 1+i i.e. x=1 and y=1.

Therefore, arg (w) = tan⁻¹ (1/1) = π/4 and |w|=√ ( 1²+1² ) = √2 (Answer)

8 0
3 years ago
Look at the top for the directions, and follow it.
mr_godi [17]
Here are all of the fill in the blanks, even the first on,

(-7,-6); (-7,-3); (-5,-3); (-5,-7); (2,-7); (2,-2,); (-1,-2); (-1,4); (-5,4); (-5,6); (-6,6); (-6,1); (2,1); (2,7); (4,7); (4,3); (7,3); (7,6)

you're welcome (:
3 0
3 years ago
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