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Sever21 [200]
3 years ago
5

Select all the statements that are true about rectangles.

Mathematics
1 answer:
ivolga24 [154]3 years ago
8 0

Step-by-step explanation:

  1. Diagonals are congruent.
  2. Diagonals bisect angles.
  3. Diagonals are perpendicular.
  4. Diagonals bisect each other.
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If 3^4(81^2) = 3^n, what is n?
Mama L [17]

Answer:

n = 16

Step-by-step explanation:

3^4(81^2) = 3^n

3^4(3^4) = 3^n

3^16 = 3^n

n = 16

8 0
3 years ago
A 25 foot ladder rests against a buliding . The base lf the ladder is 15 feet away from the base of the building. At what height
professor190 [17]
X^2+15^2=25^2
X^2+225=625
Isolate X
X^2=400
Take the square root on both sides
X=positive and negative 20 but in this case the negative is thrown out because you can't have a negative side
Answer: 20
3 0
3 years ago
Identify the set of numbers that best describes every situation. Select all that apply. The height of an airplane as it descends
Aleks04 [339]

Answer:

a, c, d, e could all be used to describe this

Step-by-step explanation:

If a plane is defending it is so many feet from the ground and feet are in whole numbers. integers, rational numbers, real numbers, and whole numbers are all whole

5 0
3 years ago
If C is between A and B, then answer the following if AB=40, AC= 2x+10, CB= 3x-5
Marat540 [252]

If C is between A and B, then, we can write the equation

AB = AC + CB


Substitute the value of AB and the expressions for AC and CB in terms of x.


40 = (2x+10)+(3x-5)


We can now solve for x.



40-10+5= 2x+3x



35=5x


Dividing by 5.


7=x


AB=40



AC=2(7)+10



AC=14+10



AC=24




BC=3(7)-5



BC=21-5


BC=16



6 0
3 years ago
Evan is making a table that will be created in the shape of the figure below. The table top is a triangle attached to a rectangl
emmainna [20.7K]
Area of a triangle:
A (triangle )= 4 · 6 / 2 = 12 ft²
150 - 12 = 138 ft² ( the maximum area of the rectangle )
L = ?
W = 6 ft
A ( rectangle ) = L · W
L · 6 = 138
L = 138 : 6 = 23 ft.
Answer: the maximum length of the base of the rectangle he can build is 23 ft.
6 0
3 years ago
Read 2 more answers
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