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Aleksandr-060686 [28]
3 years ago
13

(I'm helping someone else) Is a triangle with sides of length 6 ft., 21 ft., 23 ft. a right triangle? Show how you know.

Mathematics
2 answers:
Anit [1.1K]3 years ago
5 0
This is not a right triangle.
A right triangle will have one 90 degree angle.
MaRussiya [10]3 years ago
4 0
This is not a right triangle.

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Explain how you could use either of two operation to solve exercise 10.
zheka24 [161]
You want to know the factor by which 3 2/3 is multiplied to get 7 1/3.

1. You can estimate that it is 2 from 7/3 ≈ 2, then check by multiplication to see if that is right.
.. 2*(3 2/3) = 6 4/3 = 7 1/3 . . . . 2 is the correct factor.

2. You can divide 7 1/3 by 3 2/3 to see what the factor is.
.. (7 1/3)/(3 2/3) = (22/3)/(11/3) = 22/11 = 2 . . . . 2 is the factor Earl used.

3. You could see how many times you can subtract 3 2/3 from 7 1/3.
.. 7 1/3 -3 2/3 = (7 -3) +(1/3 -2/3) = 4 -1/3 = 3 2/3 . . . . . subtracting once gives 3 2/3
.. 3 2/3 -3 2/3 = 0 . . . . . . subtracting twice gives 0, so the factor is 2.

4. You could add 3 2/3 to see how many times it takes to get 7 1/3.
.. 3 2/3 +3 2/3 = (3 +3) +(2/3 +2/3) = 6 +4/3 = 7 1/3
We only need to add two values of 3 2/3 to get 7 1/3, so the factor is 2.

___
We have shown methods using multiplication, division, subtraction, addition. Take your pick.
3 0
3 years ago
What is the area<br> of the triangle?
elixir [45]
Area are all sides multiplied the formula can be found online
3 0
3 years ago
What is the answer to 5639×824
nikklg [1K]

4,646,536 is the right answer

7 0
3 years ago
Read 2 more answers
Find the solution to the equation 1over 2 (t-6)=1
Fynjy0 [20]

Answer:

1/2(t-6)=1

1/2(t-6)=1x2

1/2(t-6)=2

t/2-6/2=2/1

t/2-3/1=2/1

t/2-3=2

t/2=2-3

t/2=-1

t/2=-1/1

t=-2x1

t=-2

6 0
3 years ago
X + 5y =100<br> x +y = 60<br> Which ordered pair is the solution of the system?
Simora [160]

Answer:

lets start with the easy equation. X+Y=60. so we take 60 and subtract Y to get X by itself. meaning X = 60-Y. every time we see X replace with (60-Y).

X + 5Y = 100 change to

60-Y+5Y = 100

5Y - Y = 4y.

60+4Y = 100. 100 minus the 60 = 40. 4Y=40. divide by 4. Y = 10. ok so now we solve for X. X + Y (or 10) = 60. 60-10 = 50. X = 50.

Step-by-step explanation:

4 0
3 years ago
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