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11111nata11111 [884]
3 years ago
8

A point on the edge of a symmetrical canyon is 4500 feet above a river that cuits

Mathematics
1 answer:
Annette [7]3 years ago
4 0

Answer:

5196 ft

Step-by-step explanation:

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Consider the following data points.
Hoochie [10]

Answer:

the equation of the least-squares line for the data is: \hat Y=9.3+1.3x

Step-by-step explanation:

In a simple linear regression model, such as, \hat Y=b_0+b_1x, the coefficients bo and b1 are estimated through the method of least squares by the use of the equations:

b_1=\frac{S{xy}}{S_x^2}\\\\b_0=\bar{y}+b_1 \bar{x}

For the data provided you have to:

S_{xy}=\frac{\sum {(x_i-\bar x)(y_i-\bar y)}}{n-1}=3.25\\\\S_x^2=\frac{\sum {(x_i-\bar x)^2}}{n-1}=2.5\\\\\bar y=5.4, thus:

b_1=\frac{3.25}{2,5}=1.3\\\\b_0=5.4+1.3(3.0)=9.3

the equation of the least-squares line for the data is:

Y=9.3+1.3x

8 0
3 years ago
Read 2 more answers
Can you help on number 2 please
REY [17]

Hi!

The sum of all angles on a line is 180 degrees.

y = 180 - 2x

Hope this helps!

7 0
3 years ago
Read 2 more answers
What is the best estimate for 591.3 divided by 29
ioda
Best estimate would be to round 591.3 to 600 and round 29 to 30. 600/30 = 20.
6 0
3 years ago
Use the expression 5(6 + 4x) to answer the following: Part A: Describe the two factors in this expression. (4 points) Part B: Ho
Nikolay [14]

Answer:

Part A: The two factors are 6 and 4x. Part B: Question is confusing Part C: The coefficient of the variable is 4.

Step-by-step explanation:

Factors are what gets multiplied to give a product, therefore, 6 and 4x are the products as they are both being multiplied by 5. I don't understand what you are asking for part b. Part C, the coefficient is any number that is multiplied with the variable next to in. For example, in 16x, 16 is the coefficient and x is the variable. In 9y, 9 is the coefficient and y is the variable.

7 0
2 years ago
Find the missing number in the pattern:
zhenek [66]

Answer:

The pattern is that they are multiplying by -3 every time. 81*-3 = -243

4 0
2 years ago
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