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2 years ago

Which is greater, the total length of the1/8 -inch tadpoles or the total length of the 1/4 -inch tadpoles?

Mathematics

1 answer:

Karolina [17]2 years ago

7 0

Answer:

1/4-inch

Step-by-step explanation:

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Please help!! I'm stuck like a dead bird!!<br> Please!

Degger [83]

The answer is -72 because if you multiply
$18 \times 4$
you get 72

8 0

3 years ago

Read 2 more answers

In one region, the September energy consumption levels for single-family homes are found to be normally distributed with a mean

Andrej [43]

Answer: 1022.75 kWh.

Step-by-step explanation:

Given: In one region, the September energy consumption levels for single-family homes are found to be normally distributed with a mean of 1050 kWh and a standard deviation of 218 kWh.

i.e. $\mu=1050\ kWh$ and $\sigma=218\ kWh$

Let X denote energy consumption levels for random single-family homes and x be the energy consumption level for the 45th percentile.

Then, $P(X$

From z-table, $P(z$

Also, $z=\dfrac{x-\mu}{\sigma}$

$\Rightarrow\ -0.125=\dfrac{x-1050}{218}\\\\\Rightarrow\ x=-0.125\times218+1050=1022.75$

Hence, the energy consumption level for the 45th percentile is 1022.75 kWh.

8 0

3 years ago

In how many ways can 8 people be seated in a row if there are no restrictions on the seating arrangement?

MAVERICK [17]

Answer:

a ) P₈ = 40320

b) P = 576

c) P = 1440

d) P = 24

Step-by-step explanation:

a ) 8 people sitting in a row without restrictions

simple Total ways = P₈ = 8!

P₈ = 8*7*6*5*4*3*2*1

P₈ = 40320

b) There are 4 men and 4 women and no two men or 2 women can sit next to each other

Let letters e women and numbers be men we have something like this

1 a 2 b 3 c 4 d

So we have the permutations of the four digits (men)

P₄ = 4!

P₄ = 4*3*2*1 = 24

And the permutations of the 4 women too equal to 24

Then total ways of sitting in a row in this case is

P = 24*24 = 576

c) There are 5 men and they have to sit next to each other

In this case we have 2 groups:

Group 1 5 men Group 2 3 women

We have two groups and the ways are

group men first group of women second 1 way

group of women first group of men second 2 way

Permutations within men group

P₅ = 5! = 5*4*3*2*1

P₅ = 120

Permutations within the women group

P₃ = 3! = 3*2*1

P₃ = 6

Total ways case c) T = 6*120*2 =

P(c) = 1440

d) There are four couples and each couple must be together

P₄ = 4! = 4*3*2*1

P₄ = 24

4 0

3 years ago

Please HELP THIS IS A TEST AND IT NEEDS TO GET DONE

bonufazy [111]

Wouldn’t it be the same as Z? Lol

7 0

3 years ago

Simplify: 2x2(-3x4y3)2(4xy)2.

Alona [7]

Answer:

-2304x^2y^2

Step-by-step explanation:try using photo math it is really helpful

8 0

3 years ago