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4 years ago

Surface Area If A Prism

Mathematics

1 answer:

soldi70 [24.7K]4 years ago

3 0

Rectangular prism:

2lw + 2lh + 2wh = A

Triangular prism (with the sides of the triangle as a, b, and c, and the area of the base triangle as B):

2 * B + b * h + a * h + c * h = A

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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.

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2 years ago

What formula can we use to find the circumference of a circle?

Assoli18 [71]

Answer:

B plz mrk brainliest

Step-by-step explanation:

6 0

3 years ago

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PLS HELP If g(n) varies inversely with n and g(n) = 6 when n = 2, find the value of n when g(n) = 1.5.

rjkz [21]

Answer:

g(2)=1.5. Which would be three.

Step-by-step explanation:

You would just plug in n=2 into the equation and then divide it out.

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3 years ago

7th grade math!

pishuonlain [190]

Answer:

I just learned about this, and if its wrong i am so so sorry

Step-by-step explanation:

a= 120

b= 60

w= 120

x= 120

r= 105

q= 105

p= 105

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3 years ago

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What is the instantaneous velocity at t = 1 h?

satela [25.4K]

all you just have to do is divide 30 by 2 which is=15

and 40 by 4=10

50 by 10=5

ANSWER=15km/h

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3 years ago

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