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3 years ago

Manny is participating in a bike-a-thon and travels a constant rate of 6 miles in 20 minutes.

Mathematics

1 answer:

Leni [432]3 years ago

5 0

Answer:

1. 54

2.?

Step-by-step explanation:

:) Have a nice day!

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Gregor Mendel is examining peas to try to understand how traits are passed from parents to offspring. Today, Gregor has 228 peas

Alina [70]

Answer:

38 pods

Step-by-step explanation:

To find about what this is, divide 228 by 6.

What is the nearest multiple of 60 to 228 without going over?

228 - 180 = 48

What it the nearest multiple of 6 to 48 without going over?

48 - 48 = 0

180 = 6 * 30

48 = 6 * 8

30 + 8 = 38 pods

5 0

2 years ago

In a population distribution, a score of x=57 corresponds to z=-0.25 and a score of x=87 corresponds to z=1.25. Find the mean an

Serggg [28]

Here is dependence between scores and x-values:

$Z_i=\dfrac{X_i-\mu}{\sigma},$

where $\mu$ is the mean, $\sigma$ is standard deviation and i changes from 1 to 2.

1. When i=1, $Z_1=-0.25,\ X_1=57,$ then

$-0.25=\dfrac{57-\mu}{\sigma}.$

2. When i=2, $Z_2=1.25,\ X_2=87,$ then

$1.25=\dfrac{87-\mu}{\sigma}.$

Now solve the system of equations:

$\left\{\begin{array}{l}-0.25=\dfrac{57-\mu}{\sigma}\\ \\1.25=\dfrac{87-\mu}{\sigma}.\end{array}\right.$

$\left\{\begin{array}{l}-0.25\sigma=57-\mu\\ \\1.25\sigma=87-\mu.\end{array}\right.$

Subtract first equation from the second:

$1.25\sigma-(-0.25\sigma)=87-57,\\ \\1.5\sigma=30,\\ \\\sigma=20.$

Then

$1.25=\dfrac{87-\mu}{20},\\ \\87-\mu=25,\\ \\\mu=87-25=62.$

Answer: the mean is 62, the standard deviation is 20.

3 0

3 years ago

Read 2 more answers

Pls help pls pls ): precalc

Lena [83]

<h3>Answer: Choice A</h3>

$\log_p N = b$ is not the same as $b^p = N$

The base of the log is p, while the base of the exponential is b. The two don't match. If it said $\log_p N = b \text{ is the same as } p^b = N$ then it would be a valid statement since the bases are both p.

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Extra info:

Choice B is a valid statement because Ln is a natural log with base 'e'

Choice C is valid as any square root is really something to the 1/2 power

Choice D is valid for similar reasons mentioned earlier

5 0

3 years ago

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WILL MARK BRAINLIEST!!!

MAXImum [283]

Distance between Brad and bombs falling location we need

Hypotenuse=H=41m
Perpendicular=P=40m

Base be B

Apply Pythagorean theorem

B²=H²-P²
B²=41²-40²
B²=9²
B=9m

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2 years ago

C с<br> 5 km<br> 12 km<br> What is the length of the hypotenuse?<br> kilometers

inysia [295]

Answer:

13km

Step-by-step explanation:

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3 years ago

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