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mina [271]
3 years ago
7

Determine whether each of the following triangles is a right-angled triangle

Mathematics
1 answer:
Fantom [35]3 years ago
4 0

Answer:

Yes

Step-by-step explanation:

To determine if this is a right triangle, use the pythagorean theorem and see if a^2 + b^2 is equal to c^2.

a^2 + b^2 = c^2

12^2 + 16^2 = 20^2

Evaluate the exponents.

144 + 256 = 400

Add them together.

400 = 400

Since a^2 and b^2 add up to equal c^2, this is a right triangle.

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Solve the system using the substitution method<br> 6x - 2y = -4<br> y= 3x + 2
Anit [1.1K]

Answer:

Step-by-step explanation:

6x - 2y = -4

y= 3x + 2

We see that y = 3x + 2 so we can use that value of Y everytime we see i in the other equation.

6x - 2(3x +2) = -4

Now usually we'd we simply solve for X.

6x - 6x -4 = -4

This clearly does not work as we cannot get rid of X

Therefore, this system of equations has no solution we can find through substitution

3 0
3 years ago
Read 2 more answers
Please help with this question i will mark you brainliest!
adell [148]

9514 1404 393

Answer:

  equation: y = 4x

  graph is attached

Step-by-step explanation:

Let y represent the cost of the peaches in dollars. Let x represent their weight in pounds. Then the relation between the two variables is ...

  cost = (cost per pound) × (pounds)

  y = 4x

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This graphs as a line through the origin with a slope of 4. In the attached, the x- and y-axes have different scales so more of the graph can be seen.

8 0
3 years ago
Solve y=3x-4 and y=2/5x 9
mojhsa [17]
I need the sign between the (2/5)x and the 9
5 0
3 years ago
What is the true solution to 3 In 2+In 8 = 2 In(4x)?<br> O x=1<br> O x=2<br> O x=4<br> Ox=8
Novosadov [1.4K]

Answer:

x=1

Step-by-step explanation:

if x don't have a number next to it it =1

8 0
3 years ago
NEED ANSWERS ASAP PLEASE
weqwewe [10]

Answer:

72

Step-by-step explanation:

u can see its a right triangle u can see its kinda like 3-4-5 right triangle

75/5 = 15

21/3 = 7

ok so it doesn't work

now

75^2 - 21^2 = 5184

square root of 5184 = 72

3 0
3 years ago
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