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3 years ago

Help me with my math please

Mathematics

2 answers:

Olin [163]3 years ago

8 0

Every thing he said

monitta3 years ago

3 0

Answer:

Volume of a cylinder = πr²h

Given

V=81π

r=3

find h

Making h the subject

h= V/πr² = 81π/π(3)²

h= 81/9

h= 9cm

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Can someone help me pls

White raven [17]

Answer:

maybe 223 degrees

Step-by-step explanation:

3 0

3 years ago

Sue has 20 biscuits in a tin. there are: 12 plain biscuits 5 chocolate biscuits 3 currant biscuits. sue takes at random two bisc

RoseWind [281]

Answer:

58.43%

Step-by-step explanation:

In this case we have that the probability that they are different is the opposite of the probability that they are the same, therefore, in each case it would be:

P (plain, plain) = (12/20) (11/19)

P (p, p) = 132/380

P (chocolate, chocolate) = (5/20) (4/19) = 20/380

P (ch, ch) = 20/380

P (currant, currant)= (3/20) (2/19) = 6/380

P (c, c) = 6/380

The probability that they are equal is the sum of each:

P (equal) = 132/380 + 20/380 + 6/380

P (equal) = 0.4157

Therefore, the probability that they are different is:

P (different) = 1 - 0.4157

P (different) = 0.5843 = 58.43%

It means that the probability is 58.43%

5 0

3 years ago

Read 2 more answers

Which expression shows 56x+40y-48z written as a product of the greatest common factor and one other factor

AVprozaik [17]

Answer:

Step-by-step explanation:

You have not provided the choices.

Factor each term into powers of primes and variables:

56x = 2³·7x

40y = 2³·5y

48z = 2⁴·3z

Greatest common factor = 2³ = 8

56x + 40y - 48z = 8(7x + 5y - 6z)

8 0

3 years ago

PLEASE HELP ME:((( I NEED WORKING AS WELL

Aleks04 [339]

Answer:

a) y = 2x + 5, b) y = 2x-2

Step-by-step explanation:

If you have any questions about the way I solved it, don't hesitate to ask! ;)

6 0

3 years ago

What is the measure of ACD? - 100 - 130 - 50 - 80

malfutka [58]

Answer:

130°

Step-by-step explanation:

80+50= 130

180-130=50

180-50=130°

3 0

3 years ago