3 years ago

What is the area of the triangle? --55.............. units?

Mathematics

1 answer:

mr_godi [17]3 years ago

4 0

Answer:

the area is 10

Step-by-step explanation:

Area of a triangle = base times height divided by 2

brainliest pls :D

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Do the three points lie on one line?

padilas [110]

Answer:

Yes. No graph paper.

Step-by-step explanation:

Let's say the 3 points are A, B, C.

If A, B and C lie on one line then $m_{AB} = m_{BC} = m_{AC}$

$m_{AB} = \frac{y_{B}-y_{A} }{x_{B}-x_{A}} = \frac{2-6}{3-5} = \frac{-4}{-2} = 2\\m_{BC} = \frac{y_{C}-y_{B} }{x_{C}-x_{B}} = \frac{8-2}{6-3} = \frac{6}{3} = 2\\\\m_{AC} = \frac{y_{C}-y_{A} }{x_{C}-x_{A}} = \frac{8-6}{6-5} = \frac{2}{1} = 2\\\\$

Hence, they lie on one line.

You don't need to use a graph paper to prove it.

4 0

2 years ago

What is the slope y=-5<br> what is the slope of y=2x-4<br> what is the slope of 3x-8y=17

const2013 [10]

Answer:

the slope for the first one is 0

the slope for the second one is 2

the slope for the third one is 3/8

Step-by-step explanation:

5 0

3 years ago

3.5^1.6 <br>round answer to nearest thousandth

Dmitriy789 [7]

The answer would be 7.42

Use desmos online calculator

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3 years ago

1. Solve the equations below.

Sergio039 [100]

Step-by-step explanation:

A) 3x + 8 = 23

3x = 23 - 8

3x = 15

x = 15 / 3 = 5

B) 5x + 1 = 3x + 17

5x - 3x = 17 - 1

2x = 16

x = 16 /2 = 8

C) 4 (x+2) = 32

4x + 8 = 32

4x = 32 - 8

4x = 24

x = 24 / 4 = 6

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3 years ago

What is the missing reason in the proof?

Tresset [83]

A. segment addition

3 0

2 years ago