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3 years ago

14

HELP ME DUE TODAY 90 POINTS AND A BRAINLIST

1 answer:

Korvikt [17]3 years ago

7 0

Answer:

Electromagnetic waves have crests and troughs similar to those of ocean waves. The distance between crests is the wavelength. The shortest wavelengths are just fractions of the size of an atom, while the longest wavelengths scientists currently study can be larger than the diameter of our planet!

Step-by-step explanation:

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Suppose that prices of recently sold homes in one neighborhood have a mean of $265,000 with a standard deviation of $9300. Using

Hatshy [7]

Answer:

Range = (237100, 292900)

Step-by-step explanation:

Using Chebyshevs Inequality:

$P(|X - \mu | \le k \sigma )\ge 1 -\dfrac{1}{k^2}= 0.889$

$1 -\dfrac{1}{k^2}= 0.889$

$\dfrac{1}{k^2}= 1- 0.889$

$\dfrac{1}{k^2}=0.111$

$k = \sqrt{\dfrac{1}{0.111}}$

$k \simeq 3$

Thus, 88.9% of the population is within 3 standard deviation of the mean with the Range = μ ± kσ

where;

μ = 265000

σ = 9300

Range = 265000 ± 3(9300)

Range = 265000 ± 27900

Range = (265000 - 27900, 265000 + 27900)

Range = (237100, 292900)

3 0

2 years ago

(4th grade math) <br> Please help.

Delvig [45]

Answer:

i

Step-by-step explanation:

5 0

3 years ago

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Suppose f(x) = x^2. Find the graph of f(x+5) <br>PLEASE HELP ME... ASAP

kirill115 [55]

Answer:

It's the graph that its showed in the image

6 0

3 years ago

Given ag and ic are common internal tangents of h and b bc 4 ef 1 and ef = ed what is the measure of eg

Paraphin [41]

Do you still need help with this one?

7 0

3 years ago

Find the area of the figure

Gwar [14]

Answer:

Step-by-step explanation:

This is simplest if we subtract the area of the missing rectangle from the area of a complete rectangle.

A=9(3+6+3)-2(6)

A=9(12)-12

A=108-12

A=96 cm^2

3 0

3 years ago

Read 2 more answers