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mamaluj [8]
3 years ago
10

The length of a rectangle is 4 yd longer than its width. If the perimeter of the rectangle is 40 yd, find its area.

Mathematics
1 answer:
laiz [17]3 years ago
8 0

Answer:

96

Step-by-step explanation:

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1) Find the missing side.
kari74 [83]

Answer:

25inch

Step-by-step explanation:

Ok so there is something called a Pythagorean theorem.

It's a²+b²=c²

It works on right triangles

C is the longest side or the side not touching the right angle

and a and b is the other 2 sides

so the missing side is 24²+7²=Missing side or c²

24²=576 and 7²= 49  

576+49=625

\sqrt{625}=25

3 0
3 years ago
In a flight of 600 km, the speed of the aircraft was slowed down due to bad weather. The average speed of the trip was decreased
UkoKoshka [18]

The average speed would be 600 km/hr.

Step-by-step explanation:

Let the original speed be 'x'

Let the decreased speed be 'x-200'

Distance = 600 km

Time increased by 30 minutes

According to question, it becomes,

\dfrac{600}{x-200}-\dfrac{600}{x}=\dfrac{30}{60}\\\\\dfrac{x-(x-200)}{x^2-200x}=\dfrac{1}{2\times 600}\\\\\dfrac{200}{x^2-200x}=\dfrac{1}{1200}\\\\240000=x^2-200x\\\\x^2-200x-240000=0\\\\x=600,-400

So, The average speed would be 600 km/hr.

5 0
3 years ago
Which has a greater magnitude: owning $42 or<br>earning $12​
expeople1 [14]

Answer:

Owing $42

Step-by-step explanation:

Magnitude =|-a| where a is a value

= sqrt of(-asquared)

Therefore, $42 has the largest magnitude

5 0
3 years ago
There are three children in a family. a friend is told that at least two of them are boys. what is the probability that all thre
Nostrana [21]
It would be 33.333333% Likely to be a boy or a girl.
7 0
3 years ago
What is the perfect square of 1,290?
skelet666 [1.2K]
The square of 1,290 is 35.496.
7 0
4 years ago
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