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Scorpion4ik [409]
3 years ago
11

-1/2(16-8x) Plz Answer

Mathematics
2 answers:
harina [27]3 years ago
8 0
-8+4x hope it’s right!
zhenek [66]3 years ago
4 0

Answer:

-8+4x

Step-by-step explanation:

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identify the kind of sample that is described. the superintendent of a large school district wants to test the effectiveness of
Andrei [34K]

The sample used in this problem is classified as cluster.

<h3>How are samples classified?</h3>

Samples may be classified as:

  • Convenient: Drawn from a conveniently available pool.
  • Random: All the options into a hat and drawn some of them.
  • Systematic: Every kth element is taken.
  • Cluster: Divides population into groups, called clusters, and each element in the cluster is surveyed.
  • Stratified: Also divides the population into groups. Then, a equal proportion of each group is surveyed.

For this problem, a group of schools is selected, and then the new program is applied to all students in these school, meaning that all elements in the cluster are surveyed, so cluster sampling is used.

More can be learned about classification of samples at brainly.com/question/25122507

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7 0
2 years ago
The perimeter of a​ standard-sized rectangular rug is 28 ft. the length is 2 ft longer than the width. find the dimensions.
Solnce55 [7]
28=(2+x)+x
-2  -2
_________
26=x+x
26=2x
Divide both by 2
13=x
length=15 width=13
5 0
3 years ago
To find the extreme values of a function​ f(x,y) on a curve xequals​x(t), yequals​y(t), treat f as a function of the single vari
pychu [463]

Answer:

Absolute maximum is 2  

Absolute minimum at -2

Step-by-step explanation:

The given parametric functions are:

x=2\cos t,y=2\sin t

By the chain rule:

f'(t)=\frac{\frac{dy}{dt} }{\frac{dx}{dt} }

\frac{df}{dt} =\frac{2 \cos t}{-2\sin t} =-\cot(t)

At fixed points, f'(t)=0

\implies -\cot (t)=0

This gives t=\frac{\pi}{2} ,\frac{3\pi}{2} on 0\le t\le 2\pi

This implies that the extreme points are (2\cos \frac{\pi}{2}, 2\sin \frac{\pi}{2})=(0,2) and (2\cos \frac{3\pi}{2}, 2\sin \frac{3\pi}{2})=(0,-2)

By eliminating the parameter, we have x^2+y^2=4

This is a circle with radius 2, centered at the origin.

Hence (0,2) is an absolute maximum ,at t=\frac{\pi}{2} and (0,-2) is an absolute minimum at  t=\frac{3\pi}{2}

7 0
3 years ago
Braden has already taken 1 page of notes on his own, and he will take 2 pages during each hour of class. Write an equation that
beks73 [17]

Answer:

2h=2p

1h=1p

Step-by-step explanation:

7 0
3 years ago
To which place value is the number rounded? 8.293 to 8.29?
lana66690 [7]
Rounded to 1 decimal place
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4 years ago
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