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Karolina [17]
4 years ago
13

In an experimental study, a lab wanted to divide volunteers into two

Mathematics
1 answer:
fredd [130]4 years ago
3 0

Step-by-step explanation:

Assigning the participants based on who shows up first would introduce bias.  Those who arrive first may be more likely to already be punctual.  Giving or not giving them the app may make it seem ineffective when it isn't.

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Circle P has a circumfrence of aproximately 75 inches what is the aproximate length of the radius, r? Use 3.14 for pi. Round to
ratelena [41]

Answer:

The approximate length of the radius, r is 12 inch.

Step-by-step explanation:

Given:

A circle P is given having circumference C,

C = 75 inch

pi = π = 3.14

radius = r

To Find:

radius = r = ?

Solution:

Circumference:

In geometry, the circumference (from Latin circumferens, meaning "carrying around") of a circle is the (linear) distance around it.

That is, the circumference would be the length of the circle if it were opened up and straightened out to a line segment.

Formula is given as

Circumference=2\pi (radius)

Substituting the values we get

75 = 2 × 3.14 × r

∴ r =\frac{75}{2\times 3.14}\\ \\r=\frac{75}{6.28} \\\\r=11.942\ inches

We approximate radius to

radius = 12 inich

7 0
3 years ago
When the input is n followed by +2×3 what is the output ​
wariber [46]

Answer:

To find output try adding 1.5 to each input number, hope this helped.

Step-by-step explanation:

4 0
3 years ago
D(1) = 8 d(n) = d(n-1) x (-5) what is the 3rd term in the sequence
lisov135 [29]

Answer:

With the rule: d(n) = d(n-1) x (-5), we have:

d(1) = 8

d(2) = d(1)x(-5) = 8x(-5) =-40

d(3) =d(2)x(-5) = -40x-5 =200

Other way:

d(n) = d(n-1) x (-5) => d(n) = d(1)x(-5)^(n-1)

d(3) = d(1)x5^(3-1) =8x5^2=8x25 =200

3 0
3 years ago
758% as a decimal to the thousands place is........
fiasKO [112]
7.580 is 758% as a decimal to the thousandths place. 
6 0
3 years ago
Read 2 more answers
Elimination method <br> 2x-7y=0<br> 4x+9y=0
Molodets [167]

Answer:

The answer to the question

5 0
3 years ago
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