All categories

3 years ago

Please help me :( Due today

Mathematics

1 answer:

Yuri [45]3 years ago

6 0

Answer:

Step-by-step explanation: cone, square pyramid

You might be interested in

The sum of 7 and 2 is 8

BabaBlast [244]

Answer:

We can introduce a variable ( a letter representing an unknown ) to help us solve this question.

Let χ = "a number..."

We can rewrite the sentence in the following way:

7( χ + 2 ) = 8

To solve for χ , we can first distribute 7:

7 ∗ χ + 7∗(2) = 8

7χ + 14 = 8 ⇐ since 7 times 2 is 14

Let's get χ by itself first. We do so by subtracting 14 from both sides of the equation:

7χ + 14 - 14 = 8 - 14

7χ + 0 = -6 ⇐

7χ = -6 ⇐

The last number in our way is that 7. Let's divide both sides by 7 ( which is the same as multiplying both sides by 1 / 7 ) to figure out what χ is:

7χ ∗ ( 1 / 7 ) = -6 ∗ ( 1 / 7 )

χ ∗ ( 7 / 7 ) = - 6 / 7 ⇐

χ ∗ ( 1 ) = - 6 / 7 ⇐

χ = - 6 / 7

Therefore ( we can also use ∴ to represent the word "therefore" ) our number in question is -6 / 7

Step-by-step explanation:

4 0

3 years ago

Find the y- intercept of the following equation. simplify your answer. y=9x+6

pashok25 [27]

0,6 is the y intercept

3 0

3 years ago

A number is multiplied by 3. If 1 is added to<br> the product, you get 4. What is the number?

Murljashka [212]

Step-by-step explanation:

w×3+1

3w+1=4

3w=4-1

3w=3

w=1

7 0

3 years ago

1=n+1/3 (please show your work!)

lubasha [3.4K]

N is 2/3 because 1 minus 1/3 is 2/3

3 0

4 years ago

Read 2 more answers

Suppose that the number of drivers who travel between a particular origin and destination during a designated time period has a

Bumek [7]

Answer:

0.381 is the probability that the number of drivers will be at most 18.

Step-by-step explanation:

We are given the following information in the question:

The number of drivers who travel between a particular origin and destination during a designated time period has a Poisson distribution with parameter μ = 20.

The Poisson distribution is the discrete probability distribution of the number of events occurring in a given time period, given the average number of times the event occurs over that time period.
The variance of Poisson distribution is equal to the mean of Poisson distribution.

a) P(number of drivers will be at most 18)

Formula:

$P(X =k) = \displaystyle\frac{\mu^k e^{-\mu}}{k!}\\\\ \mu \text{ is the mean of the distribution}$

$P( x \leq 18) =P(x=0) + P(x =1) + P(x = 2) + ... + P(x = 18)\\\\= \displaystyle\frac{20^0 e^{-20}}{0!} + \displaystyle\frac{20^1 e^{-20}}{1!} +...+ \displaystyle\frac{20^{18} e^{-20}}{18!}\\\\ = 0.381$

Thus, 0.381 is the probability that the number of drivers will be at most 18.

3 0

4 years ago