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Gelneren [198K]
3 years ago
7

A square has an area of 289 cm2. What is the length of one side?

Mathematics
1 answer:
Delvig [45]3 years ago
3 0

Answer:

144.5cm

Step-by-step explanation:

Since it's a square, all sides should be equal so you just need to divide 289 by 2(are of a square is side times side)

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42 points!
kupik [55]

Answer:

C

Step-by-step explanation:

30x20=600

5 0
3 years ago
Read 2 more answers
Need help asap thanks
Ymorist [56]

Answer:

A

Step-by-step explanation:

for a right angled triangle, the sum of the square of the two sides should be equal to the square of the hypotenuse. If this rule does not hold, the dimensions do not represent the side of a right angled triangle.

The Pythagoras theorem : a² + b² = c²

where a = length

b = base

c =  hypotenuse

4² + 10² ≠ 16²

6² + 12² = 13²

7² + 24² = 25²

8² + 15² = 17²

8 0
3 years ago
Which of the following is the correct graph of the compound inequality 4p + 1 <-11 or 6p +3 > 39?
____ [38]
I think that will be the answer and the graph i take it for leter

4 0
3 years ago
An engineer stands 200 feet from a tower and sights the top of the tower at a 45° angle of elevation. Find the height of the tow
Alik [6]
Drawing a diagram of a triangle may be helpful. The hypotenuse is irrelevant, but the vertical leg and the horizontal leg are useful. Since we know the engineer is looking up at a 45 degree angle from a distance of 200 feet, we can label the vertical leg the "opposite", since it is on the opposite side of the angle we are given. The horizontal leg then becomes the "adjacent". You can then use trigonometry to solve for the opposite. 
The options are:
sin(theta)= opposite/hypotenuse
cos(theta)= adjacent/hypotenuse
tan(theta)= opposite/adjacent
Since we don't care about the hypotenuse, the last equation is the one to use. The angle we are given can be substituted in for theta:
tan(45)= x/200
1.61977519= x/200
x= 323.955038 feet
6 0
3 years ago
Find the area of the yellow region. Round to the nearest tenth. 7.53 cm Area = [?] cm^2​
cestrela7 [59]
I’m guessing it’s 8.00
5 0
3 years ago
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