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SCORPION-xisa [38]
3 years ago
15

How can you prove a triangle is a right triangle?

Mathematics
2 answers:
Darina [25.2K]3 years ago
6 0
Your answer would be option 2. Use the slope formula to see if any sides are perpendicular. This is because a right triangle must have 2 perpendicular sides that form a 90° angle for it to be a right triangle, so finding these would prove it.
I hope this helps!
Ivenika [448]3 years ago
5 0

Number 2 would be the correct answer


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Find the sale price of each item. Round to two decimal places when necessary.
Grace [21]

Answer:

8. $35.10

9. $59.63

10. $13.43

11. $70

12. Take the percent you pay (100-the discount) as a decimal and multiply it by the regular price.

Step-by-step explanation:

For finding the price we pay during a sale, we focus on the percent we pay. If 22% off is the sale, then we spend 78% or 100-22-78. We use this percent byb  multiplying the price with a decimal. We convert percents into decimals by dividing the percent number by 100. For example, 78% divided by 100 becomes 0.78.

8. Percent off is 22%. We pay 78%=0.78.

45(0.78)=$35.10

9. Percent off is 33%. We pay 67%=0.67.

89(0.67)=$59.63

10. Percent off is 44%. We pay 56%=0.56.

23.99(0.56)=$13.43

11. Percent off is 75%. We pay 25%=0.25.

279.99(0.25)=$70

12. See explanation above.

3 0
4 years ago
Help any 1 please!?​
sveticcg [70]

Yo sup??

total distance travelled by Janae =sum of distance on the 2 semicircles+ sum of the distances on the 2 track

=2πr+2*l

l=3 miles

r=1 mile

So,

total distance=2*3.14*1+2*3

=6.28+6

=12.28

=12.3 miles

Therefore the correct answer is option D

Hope this helps

3 0
3 years ago
A man drove his car a distance of 366 miles in 6 hours. If continuing at this rate is possible, he will travel ______ miles in 7
Anettt [7]
ANSWER: 427 miles
Okay so you have to divide 366 by 6 to see how many miles he drives each hour.
explanation:
366 / 6 = 61
He drove 61 miles each hour.
now they want to know how many miles he drove when he reached 7 hours.
so add 366 and another 61 miles for another hour.
366 + 61 = 427
He will travel 427 miles in 7 hours.
3 0
3 years ago
Read 2 more answers
Let x represent the measurment of an acute angle in degrees. the ratio of the complement of x to the supplement of x is 2: 5. gu
Nadusha1986 [10]
Ratio of complement of x : supplement of x 
2 : 5
⇒ 2 times the supplement of x will be equal to 5 times the complement of x

5(90 - x) = 2 (180 - x)
450 - 5x = 360 - 2x
5x - 2x = 450 - 360
3x = 90
x = 30°

Complement of x = 90 - x = 90 - 30 = 60
Supplement of x = 180 - x = 180 - 30 = 150
Ratio:
60 : 150
60 ÷ 30 : 150 ÷ 30
2 : 5 (checked)
4 0
3 years ago
Summy is working in geometry class and is given figure abcd in the coordinate plane to reflect the coordinates of point d are a
fgiga [73]

Answer:

Answer is B

Step-by-step explanation:

If point D with coordinates (a,b) is reflected over the line y=x then the image point D' coordinates are (b,a) (see picture for details). 

The middlepoint M of segment DD' lhas coordinates  and lies on the line y=x (since its coordinates are equal), DD' is perpendicular to the line y=x and DM=D'M. All these remarks show that the point D' is the image point of D.

8 0
3 years ago
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