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Pepsi [2]
3 years ago
9

Help Please!!!!! Evaluate the expression when n = 4 2n-7

Mathematics
2 answers:
Montano1993 [528]3 years ago
7 0
2•4= 8 8-7= 1
The answer is 1
crimeas [40]3 years ago
6 0

Answer:

the answer is 1.

Step-by-step explanation:

4 is equal to n so it would look like 24-7 but you have to multiply 2 and 4 which is 8. Then, you do 8-7 which is 1. hope this helped.

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A circular pond is modeled by the equipment x^2+y^2=225. A bridge over the pond is modeled by a segment of the equation x-7y=-75
makkiz [27]
X² + y² = 225
x - 7y = -75

x = 7y - 75

x² + y² = 225
(7y-75)² + y² = 225
(7y - 75)(7y - 75) + y² = 225
49y² - 525y - 525y + 5625 + y² = 225
50y² - 1050y + 5400 = 0
50(y² - 21y + 108) = 0

y² - 21y + 108 ⇒ (y - 12)(y - 9)

x = 7(12) - 75
x = 84 - 75
x = 9       ⇒ (9,12)

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3 0
3 years ago
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My name is Ann [436]

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5 0
3 years ago
The pyramid of khagra,in Egypt,is 488 feet tall. The Eiffel Tower,in France,is 1,063 feet tall. How much taller is the Eiffel To
steposvetlana [31]

Answer:

The Eiffel Tower in France is 575 feet taller than pyramid of khagra.          

Step-by-step explanation:

We are given the following in the question:

Height of pyramid of khagra = 488 feet

Height of Eiffel Tower in France = 1,063 feet

Difference in height =

= Height of Eiffel Tower in France - Height of pyramid of khagra

=1063 - 488\\= 575\text{ feet}

Thus, the Eiffel Tower in France is 575 feet taller than pyramid of khagra.

7 0
3 years ago
The bawden family is shopping for a new television.They are making their decision based on brand and sizes.The family has 20 pos
nalin [4]
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5 0
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Read 2 more answers
What is the midpoint of the segment (1, -1) (4, -6)
Sophie [7]
When looking for the midpoint of a segment defined by two end points, the average of both coordinates are taken. Averaging the 2 x-coordinates give the new x-coordinate, and the same applies for the y-coordinate. This is shown below:

Midpoint = ( (1 + 4)/2 , (-1 + -6)/2 )
Midpoint = (2.5 , -3.5)
6 0
3 years ago
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