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Ksenya-84 [330]

3 years ago

15

Of the vehicles on the road, 1/2 are cars and 1/8 are motorcycles. What fraction of the vehicles are not cars or motorcycles?

1 answer:

crimeas [40]3 years ago

8 0

The answer is 3 over 8. One half times two, 2 fourths, times two 4 eighths. 4 eighths plus 1 eighth is 5 eighths. 5/8-8/8 = 3/8

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If A+B= 45° then prove that: tanA+ tanB+ tanA. tanB

Iteru [2.4K]

Answer:

See Explanation

Step-by-step explanation:

$A+B= 45 \degree \\ \\ assuming \: \tan \: on \: both \: sides \\ \\\implies \: \tan( A+B)= \tan 45 \degree \\ \\ \implies \: \tan( A+B)= 1 \: \: \\ ( \because \: \tan 45 \degree = 1) \\ \\ \implies \: \frac{\tan \: A +\tan \: B }{1 - \tan \: A .\tan \: B } = 1 \\ \\ \implies \: \tan \: A +\tan \: B = 1 - \tan \: A .\tan \: B \\ \\ \purple{ \implies }\: \orange{ \bold{\tan \: A +\tan \: B + \tan \: A .\tan \: B= 1 }} \\ \\ thus \: proved$

8 0

2 years ago

What effect would doubling all the dimensions of a triangular pyramid have on the volume of the pyramid?

lana66690 [7]

Answer:

The effect of doubling all the dimensions of a triangular pyramid will have on the volume of the pyramid is to increase it by 8 times.

Step-by-step explanation:

i) volume of triangular pyramid = $\frac{1}{3}$ $\times$ Area $\times$ height

= $\frac{1}{3}$ $\times$ (Base of triangle $\times$ perpendicular height of triangle) $\times$ height

ii) if we double all the dimensions then the three variables((Base of triangle, perpendicular height of triangle, height of pyramid) will be doubled

and the volume of the new pyramid will be 8 times that of the original one.

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3 years ago

A company requires a password to access a data storage vault. The password must be 4 characters long and may

lisov135 [29]

Answer:

There are 36 possibilities per character (26 lower case letters + 10 numbers), so the total number of permutations are 36^4 = 1,679,616

Step-by-step explanation:

5 0

3 years ago

Write an equation in point-slope form for the line that has the given slope and that contains the given point. slope 4/5 ,(8,2)

Novosadov [1.4K]

Hello,

The equation is y-2=4/5(x-8)==>y=4/5x-22/5 or 4x-5y=22
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3 years ago

Someone plz help because I am using my last amount of points and I don't want it to be wasted from no answer.I need help with qu

ser-zykov [4K]

Wheres the questions???

7 0

3 years ago