A parallelogram in which adjacent sides are perpendicular to each other is called a rectangle. The length of Jk can be either 10 or 26.
<h3>What is a rectangle?</h3>
A parallelogram in which adjacent sides are perpendicular to each other is called a rectangle. A rectangle is always a parallelogram and a quadrilateral but the reverse statement may or may not be true.
Since in a rectangle the opposite sides are equal, therefore, the sides NM and JK will be equal.
JK = MN
8x - 14 = x² + 1
0 = x² - 8x + 15
x = 5, 3
Hence, the length of Jk can be either 10 or 26.
The complete questions are:
Quadrilateral JKMN is a rectangle, if NM= 8x - 14 and JK= x squared + 1, find JK.
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Answer:
The distance between the two boats after 2.5 hours is 57 m.
Step-by-step explanation:
The distance covered by each boat after 2.5 hours are:
speed = 
distance = speed x time
For boat A, speed = 14 km/h and time = 2.5 hrs.
So that,
distance = 14 x 2.5
= 35 km
For boat B, speed = 18 km/h and time = 2.5 hrs.
So that,
distance = 18 x 2.5
= 45 km
The distance between the two boats after travelling 2.5 hours can be determined by applying the cosine rule. Let the distance be represented by x, so that:
= 
+ 
- 2bc Cos A
= 
+ 
- 2(45 x 35) Cos 
= 2025 + 1225 - 3150 (0)
= 3250
x = 
= 57.0088
x = 57.0 m
The distance between the two boats after 2.5 hours is 57 m.
Answer:
1 if you put it togather for the first one your going to put 7
2 for the next one you are going to put 9
3.the third one you are going to put 8
4. then for the last one your going to put 10
5. you are going to put 12
6 . you are going to add 17
Step-by-step explanation:
um i think that how it go
just say thank in rate this it a hot mess
Answer:
20 hours
Step-by-step explanation:
A day is equal to 24 hours
To get 5/6 of a day multiply the fraction by 24
● 24 ×(5/6) = 20
So the answer is 20 hours
