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Nutka1998 [239]
3 years ago
9

TEA samples its test questions for the TAKS test every year by field testing the questions. they tell schools to test certain cl

asses at specific schools throughout the state. what kind of sampling are they using?
a-Simple Random
b-cluster sampling
c-stratified sampling
d-convenience sampling
e-systematic sampling
Mathematics
1 answer:
Elina [12.6K]3 years ago
7 0
I think it is E.??? I am almost positive.
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8 0
3 years ago
1. What is a real world example when you would have to find the circumference of something? Explain.
nikitadnepr [17]
A ferris wheel
A construction worker whose making a ferris wheel would need to know and measure the circumference.
A theme park manger would need to find the circumference to know if the ferris wheel is too big to go into the park.
Hope that helps!!
4 0
3 years ago
If y varies inversely as x, and y=1 as x=2 find y for the x- value of -1
Lina20 [59]
Inverse variation is of the form y=k/x  (direct variation is of the form y=kx)

We are given that x=2 when y=1 so using the inverse form y=k/x we can solve for the constant of variation...

1=k/2

k=2

so the equation is:

y=2/x  now they want us to find y when x=-1 so

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3 0
3 years ago
I need help SHOW YOUR WORK
earnstyle [38]

Answer:

F)\displaystyle \:  100\pi{ x}^{8} {y}^{2}  {z}^{ 6}

Step-by-step explanation:

we are given r and the formula

we want to find the surface area of the shpare with the given r

to do so

we need our algebra skills

substitute the value of r:

\displaystyle \: S = 4\pi( {5x}^{4} y {z}^{ 3} {)}^{2}

recall law of exponent

\displaystyle \:  ({x}^{m}  {)}^{n}  \iff \:  {x}^{mn}

to simplify:

\displaystyle \: S = 4\pi({ {5}^{2} x}^{4 \times 2} {y}^{1 \times 2}  {z}^{ 3 \times 2} )

simplify multiplication:

\displaystyle \: S = 4\pi({ 25x}^{8} {y}^{2}  {z}^{ 6} )

distribute:

\displaystyle \: S = 100\pi{ x}^{8} {y}^{2}  {z}^{ 6}

hence our answer is F

5 0
2 years ago
What is the square root of 6144
Artyom0805 [142]

Answer:

78.38

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
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