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3 years ago

Im braindead, i dont know.

Mathematics

1 answer:

Mrrafil [7]3 years ago

7 0

Answer:

-8-(-11)-7= -4

Plug it in. Hope this helped!

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A class is made up of 8 boys and 6 girls. Half of the girls wear glasses. A student is selected at random from the class. What i

sammy [17]

3/14 3 out of 14 or 0.214% of a chance

8 0

3 years ago

Which statement is true about the domain of y = 3(2^-x)? Explain.

SVEN [57.7K]

We want to determine the domain of ${y=3 \cdot 2^{-x}=3 \cdot ({2^{-1}})^x=3 \cdot ({ \frac{1}{2}})^x$

any function of the form $y=f(x)=a \cdot b^x$ is called an "exponential function",
the only condition is that b is positive and different from 1, and a is a nonzero real number.

The domain of such functions is all real numbers.

That is for any x, the expression <span>3(2^-x) "makes sense".

Answer: </span><span>The domain is all real numbers</span>

8 0

3 years ago

does the assumption of a poisson distribution with a mean of 6.0 seem appropriate as a probability model for these data? use 0.0

Alenkasestr [34]

The Poisson distribution with a mean of 6.0 is an appropriate model.

In mathematics and statistics, the concept of mean is crucial. The most typical or average value among a group of numbers is called the mean.
It is a statistical measure of a probability distribution's central tendency along the median and mode. It also goes by the name "expected value."
There are different ways of measuring the central tendency of a set of values. There are multiple ways to calculate the mean. Here are the two most popular ones:
Arithmetic mean is the total of the sum of all values in a collection of numbers divided by the number of numbers in a collection.

Hence, The Poisson distribution with a mean of 6.0 is an appropriate model.

learn more about mean click here:

brainly.com/question/1136789

#SPJ4

6 0

1 year ago

Simplify the expressions:

mestny [16]

Answer:

-1v

0.6y+2.1

3w-p+4

1-6x

-5x+10y+z-25

Step-by-step explanation:

Combine like terms

8 0

3 years ago

A. 12 + 4x = 6x + 10 – 2x

GalinKa [24]

An equation has infinitely many solutions if it can be manipulated all the way to an identity (i.e. an equality where the right and left hand side are the same). We have:

A) $12+4x=6x+10-2x \iff 12+4x=10+4x \iff 12=10$

which is impossible

B) $5x+14-4x=23+x-9 \iff x+14 = x+14$

which is an equality

C) $x+9-0.8x=5.2x+17-8\iff 0.2x+9=5.2x+9 \iff 0.2x=5.2x\iff x=0$

which has a unique solution

D) $4x-2x=20 \iff 2x=20 \iff x=10$

which has a unique solution

3 0

3 years ago