All categories

2 years ago

I need help, the solid below is made from cubes find it volume

Mathematics

2 answers:

Vikki [24]2 years ago

7 0

Answer:

40cm

Step-by-step explanation:

Volume is LxWxH. The length is 2cm, the width is 5cm, and the height is 4cm, you can find these values by counting each block as a cm. Then you multiply all the values, (2x4x5) and you get 40.

Art [367]2 years ago

5 0

Answer:

$[tex]\purple{\rule{45pt}{7pt}}\purple{\rule{45pt}{999999pt}}[tex]$

You might be interested in

The number of hours between successive train arrivals at the station is uniformly distributed on (0, 1). Passengers arrive accor

Zepler [3.9K]

Answer:

The value of $E(X) =\frac{7}{2}$ .

The value of $Var (X)= \frac{91}{12}$ .

Step-by-step explanation:

Consider the provided information.

The number of hours between successive train arrivals at the station is uniformly distributed on (0, 1). Passengers arrive according to a Poisson process with rate 7 per hour.

Let X denote the number of people who get on the next train.

Part (A)

Here, X = N(T), N(t) ∼ Poisson(λt), and λ = 7

Therefore, E(N(T)|T) = λT

Now find E(X) as shown below

$E(X) = E(N(T))$

$E(X) = E(E(N(T)|T))$

$E(X) = E(\lambda T) = \frac{7}{2}$

Hence, the value of $E(X) =\frac{7}{2}$ .

Part (B)

Now we need to find VAR[X]

$Var (X) = Var (E(N(T)|T)) +E(Var (X|T))$

$Var (X)= E(\lambda T)+Var (\lambda T)$

$Var (X)= \frac{49}{12}+\frac{7}{2}$

$Var (X)= \frac{91}{12}$

Hence, the value of $Var (X)= \frac{91}{12}$

7 0

3 years ago

How do you simplify #(-3 - 2i)(-3 + 3i)#?

dybincka [34]

So, ( -3 - 2i )( -3 + 3i ) = 9 - 9i +6i - 6i^2 = 9 - 3i - 6·(-1) = 9 + 6 - 3i = 15 - 3i;
We have / 15 +(- 3)i / = 15.29; $\sqrt{ 15^{2} + (-3)^{2} } = \sqrt{225 + 9} = \sqrt{234} =$

7 0

2 years ago

I added question and example. answer it CORRECTLY and you will get brainliest!

snow_lady [41]

Answer:

1008

Step-by-step explanation:

like the 2nd picture we split it in 3 rectangular prism

$V_{1}$ =6*7*8=336

$V_{2}$ =6*7*8=336

$V_{3}$ =6*7*8=336

V=336+336+336=1008

5 0

3 years ago

Which equation represents a quadratic function?<br> y = x2<br> y = 2x<br><br> y =1/x^2

ehidna [41]

Answer:

y = x²

Step-by-step explanation:

A quadratic function is a polynomial function that has a variable to the power of 2 as the highest degree term. y = 1/x^2 is not a polynomial. y=2x is a linear function.

y = x^2 is a quadratic function

3 0

3 years ago

Juanita has 16 model cars and 48 model trains. What is the ratio of the wmber of trains to the member of cars?

svetoff [14.1K]

Answer:

1:3

Step-by-step explanation:

but thats not and answer

6 0

2 years ago