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dusya [7]
3 years ago
7

The mean score of a placement exam for entrance into a math class is​ 80, with a standard deviation of 10. Use the empirical rul

e to find the percentage of scores that lie between 60 and 80.​ (Assume the data set has a​ bell-shaped distribution.)
Mathematics
1 answer:
Sedbober [7]3 years ago
5 0

Answer:

47.5%

Step-by-step explanation:

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What is the best way to convert metric units (I'm really bad at this...)
Vladimir [108]
Necesitas reconocer los múltiplos u submúltiplos del sistema métrico decimal si son lineales por cada nivel que avanzas multiplicas o divides con el 10
siempre y cuando la unidad de medida es el metro ese queda al centro.
Km Hm Dam m dm cm mm yo los ubico en escalera el metro queda al centro y de cualquier lugar que te posicionas,buscas a donde quieres convertir y revisas si vas a la derecha multiplicas por 10 o si vas a la izquierda divides entre 10 siempre y cuando sea un lugar a donde te vas a mover si son dos lugares es con el 100 por que 10x10 es 100 y si son tres lugares es con el 1000 porque es 10x10x10.
ejemplo 2000m convertirlos a Hm= 20 Hm dividí 2000 entre 100 porque me moví 2 lugares a la izquierda  otro ejem. 100 Dam convertirlos a cm=100000 porque 100x 1000 por que avance 3 lugares a la derecha
4 0
3 years ago
Please answer!!!!!!
Crazy boy [7]

Answer:

(this isnt a mathematics question, it's science, btw)

Indeed, you are correct. It is 1. I think.

Because you get one allele from each parent, to make up 2 alleles per offspring.

Hope that helps!

4 0
3 years ago
You own an electronics store with a merchandise book value of $245,000. You conduct a physical inventory and find the value to b
Aleksandr-060686 [28]

0.22% shrinkage as a percent of sales.

To calculate shrinkage you subtract the physical inventory value from the book value.

245,000-237,000 = 800

The shrinkage was $800. To find the shrinkage as a percent of sales take the shrinkage value and divide it by the sales value to get shrinkage as a percentage of sales.

800 / 360,000 = 0.0022....

Multiply Decimal by 100 to get the percentage

100 * 0.0022.... = 0.22%

8 0
3 years ago
When comparing the functions using the equation, which conclusion can be made?
ankoles [38]

Answer:

  domain of f(x) is x ≤ 0; domain of f^-1(x) is x ≥ 4

Step-by-step explanation:

The square root function will always give a positive value, so the opposite of the square root function will give non-≤positive values. That means ...

  • the domain of f(x) is restricted to non-positive values
  • the domain of the inverse function is restricted to values of x that make the root be of a non-negative number: x ≥ 4

The domain of f(x) is x ≤ 0; the domain of f^-1(x) is x ≥ 4.

8 0
4 years ago
Simplify, Write your answer in exponential notation.<br> a.) 2³ x 2-5<br> b.) (602)3
mariarad [96]

The simplified expressions are 2^-2 and 60^6

<h3>How to simplify the expressions?</h3>

<u>Expression (a)</u>

We have:

2^3 * 2^-5

Apply the product law of indices

2^3 * 2^-5 = 2^(3 - 5)

Evaluate the difference

2^3 * 2^-5 = 2^-2

<u>Expression (b)</u>

We have:

(60^2)^3

Apply the power law of indices

(60^2)^3 = 60^(2 * 3)

Evaluate the product

(60^2)^3 = 60^6

Hence, the simplified expressions are 2^-2 and 60^6

Read more about expressions at:

brainly.com/question/723406

#SPJ1

8 0
2 years ago
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