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3 years ago

Evaluate the expression for w = 4, x = 9, and y = 11. Simplify your answer. w − x + y /x − y =

Mathematics

2 answers:

shepuryov [24]3 years ago

4 0

4 - 9 + 11 / 9 - 11

To solve this, I suggest using PEMDAS and starting with division. 11/9 = 1.3 (rounded).

4 - 9 + 1.3 - 11

Now proceed from left to right to get the final answer of:

-14.7

Hope this helps!

dmitriy555 [2]3 years ago

3 0

Basically, you want to plug in these values into the equation.

(4)-(9)+(11/9)-11

Simplify it

-5+11/9- 11

-16+11/9

=16 11/9

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The table below shows data from a survey about the amount of time students spend doing homework each week. The students were in

nadezda [96]

Answer:

The correct option is;

Both spreads are best described by the standard deviation

Step-by-step explanation:

The given information are;

, College High School

High, 20 20

Low, 6 3

Q₁, 8 5.5

Q₃, 18 16

IQR, 10 10.5

Median, 14 11

Mean, 13.3 11

σ, 5.2 5.4

Checking for outliers, we have

College

Q₁ - 1.5×IQR gives 8 - 1.5×10 = -7

Q₃ + 1.5×IQR gives 18 + 1.5×10 = 33

For high school

Q₁ - 1.5×IQR gives 5.5 - 1.5×10.5 = -10.25

Q₃ + 1.5×IQR gives 16 + 1.5×10.5 = 31.75

Therefore, there are no outliers and the data is representative of the population

From the data, for the college students, it is observed that the difference between the mean, 13.3 and Q₁, 8, and between Q₃, 18 and the mean,13.3 is approximately the standard deviation, σ, 5.2

The difference between the low and the high is also approximately 3 standard deviations

Therefore the college spread is best described by the standard deviation

Similarly for the high school students, the IQR is approximately two standard deviations, the difference between the mean, 11 and Q₁, 5.5, and between Q₃, 16 and the mean,11 is approximately the standard deviation, σ, 5.4

Therefore the high school spread is also best described by the standard deviation.

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3 years ago

Can someone please help me with math.

MaRussiya [10]

Answer:

1. Binomial

2. Binomial

3.Polynomial

4. Constant

5.Trinomial

6. Trinomial

Monomial- consists of one term

Binomial- consists of two terms separated by a plus or minus sign

Trinomial- consists of three terms separated by a plus or minus sign

Polynomial- consists of 4+ terms separated by a plus or minus sign

Constant- a number such as 130

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Step-by-step explanation:

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