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Norma-Jean [14]
2 years ago
7

Simplify (9 ^ 2)/(9 ^ 7) PLS HELP!!!! WILL MARK BRAINLIEST!

Mathematics
1 answer:
Gre4nikov [31]2 years ago
5 0

Answer:

1/9^5

Step-by-step explanation:

Yeah you're correct, 9^2/9^7 = 1/9^(7-2).

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Factor the trinomial comoletley x2+5x-84
Annette [7]
Hope this helps you.

8 0
2 years ago
Consider the quadratic function f(y) = 8y2 – 7y + 6. What is the constant of the function?
olga55 [171]

For this case we have the following expression:

f (y) = 8y ^ 2 - 7y + 6

we observe that we have a polynomial of the second degree.

The constant term of the polynomial, is that coefficient that is not written accompanying a variable.

We have then that the constant term of the quadratic function is:

6

Answer:

the constant of the function is:

6

8 0
3 years ago
Cheryl collected data for her mathematics project. She noted that the data set was approximately normal.
nadya68 [22]

Answer:

X_(r) >> X_(n)

The mean for this case would increase since is defined as:

\bar X= \frac{\sum_{i=1}^n X_i}{n}

The interquartile range would not change since the definition for the IQR is IQR =Q_3 -Q_1 and the quartiles are the same.

The standard deviation would not remain the same since by definition is:

s = \sqrt{\frac{\sum_{i=1}^n (X_i -\bar X)^2}{n-1}}

And since we change the largest value the deviation would increase considerably.

And for the last option is not always true since if we select a value so much higher then the distribution would be skewed to the right.

So the best option for this case is:

Mean would increase.

Step-by-step explanation:

For this case we assume that we have a random sample given X_(1), X_(2) ,..., X_(n) and for each observation X_i \sim N(\mu, \sigma) since the problem states that the data is approximately normal.

Let's assume that the largest value on this sample is X_(n) and for this case we are going to replace this value by another one extremely higher so we satisfy this condition:

X_(r) >> X_(n)

The mean for this case would increase since is defined as:

\bar X= \frac{\sum_{i=1}^n X_i}{n}

The interquartile range would not change since the definition for the IQR is IQR =Q_3 -Q_1 and the quartiles are the same.

The standard deviation would not remain the same since by definition is:

s = \sqrt{\frac{\sum_{i=1}^n (X_i -\bar X)^2}{n-1}}

And since we change the largest value the deviation would increase considerably.

And for the last option is not always true since if we select a value so much higher then the distribution would be skewed to the right.

So the best option for this case is:

Mean would increase.

6 0
3 years ago
Side PV measures 35 meters. Find the value of VT rounded to thenearest tenth if necessary.
Strike441 [17]

By definition,

sin(angle) = opposite/hypotenuse

From the picture,

sin(60°) = VT/PV

√3/2 = VT/35

√3/2*35 = VT

30.3 meters = VT

7 0
1 year ago
Choose the most specific description of a curve that is a subset of a circle.
balandron [24]
I would say it's arc providing the curve possesses a constant rate of curvature.

And the curve by definition follows the rule.
8 0
3 years ago
Read 2 more answers
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