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3 years ago

Consider the following graph of an absolute value function

Mathematics

1 answer:

Ahat [919]3 years ago

7 0

The domain is -∞ < x < ∞

The range is -∞ < x ≤ 3

The graph is increasing from -∞ < y < 3

The graph is decreasing from 3 > y > -∞

The local maximum is at ( - 2, 3 )

There are no local minimums

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Suppose the sediment density (g/cm3 ) of a randomly selected specimen from a certain region is known to have a mean of 2.80 and

Irina18 [472]

Answer:

0.918 is the probability that the sample average sediment density is at most 3.00

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 2.80

Standard Deviation, σ = 0.85

Sample size,n = 35

We are given that the distribution of sediment density is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

Standard error due to sampling:

$=\dfrac{\sigma}{\sqrt{n}} = \dfrac{0.85}{\sqrt{35}} = 0.1437$

P(sample average sediment density is at most 3.00)

$P( x \leq 3.00) = P( z \leq \displaystyle\frac{3.00 - 2.80}{0.1437}) = P(z \leq 1.3917)$

Calculation the value from standard normal z table, we have,

$P(x \leq 3.00) = 0.918$

0.918 is the probability that the sample average sediment density is at most 3.00

4 0

3 years ago

The number 2.31 x 10 to the power of x is 2,200 times greater than 1.05 x 10 to the power of y.

Goshia [24]

Answer:

x - y = 3

any values of x& y where x is three greater than y

I.E. x = 8 y = 5

Step-by-step explanation:

8 0

3 years ago

3. The surface area of the sphere is 30 m2. Find the radius of the sphere.

pickupchik [31]

Answer:

Step-by-step explanation:

The formula for the surface area is A = 4πr². This formula can be solved for r² and then the result solved for the radius, r:

r² = -------- The radius of the sphere is as follows:

4π

√(30 m²)

-------------- meters

2√π

7 0

3 years ago

Give the answer of 1,626 divided by 12 as a mixed number

kvv77 [185]

135 and 1/2 should be correct.

3 0

3 years ago

Read 2 more answers

May i have help with this

Leya [2.2K]

Answer: D. 7^11

Step-by-step explanation:

For exponents with the same base, we just add the exponents and keep the same base. 7 is the same base; therefore 5+6=11 which means the answer is 7^11

3 0

2 years ago