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3 years ago

Plz help ASAP with Question 14

Mathematics

1 answer:

Yuliya22 [10]3 years ago

8 0

Answer:

5000 cubic ft is the correct answer

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Y=3x-1 for x=-2,1,0,1

Molodets [167]

Answer:

Step-by-step explanation:

For X=-2,

Y= 3x-1

Y= 3(-2) -1

Y= -6-1. = -7.

For X= 1

Y= 3(1)-1

Y= 3-1= 2

For X= 0

Y= 3(0)-1

Y= 0-1 = -1

For X= 1

Y= 3(1)-1

Y= 3-1= 2

6 0

3 years ago

A certain forest covers an area of

ohaa [14]

I hope this helps you

3 0

3 years ago

Please help me please

anastassius [24]

Answer:

SAS similarity theorem

Step-by-step explanation:

Both the triangles are similar by SAS similarity theorem.

5 0

3 years ago

How many ways can Rudy choose 5 pizza toppings from a menu of 20

lozanna [386]

Answer:

15504 ways

Step-by-step explanation:

$C(n,r)=\frac{n!}{r!(n-r)!} \\\\C(20,5)=\frac{20!}{5!(15)!} \\\\C=15504$

8 0

3 years ago

A fair die is rolled 10 times. Find the expected value of:a) the sum of the numbers in the ten rolls;b) the number of multiples

velikii [3]

Answer:

a) 3.5

b) 3.33

c) $6 - 6\left(\begin{array}{ccc}5\\6\end{array}\right)^{10}$

Step-by-step explanation:

As given,

A fair die is rolled 10 times

Expected value of Sum of the number in 10 rolls = $\frac{1}{6}(1+2+3+4+5+6) = \frac{21}{6}$

= 3.5

∴ we get

Expected value of Sum of the number in 10 rolls = 3.5

Ley Y : number of multiples of 3

Y be Binomial

Y - B(n = 10, p = $\frac{2}{6}$ )

Now,

Expected value = E(Y) = np = 10× $\frac{2}{6}$ = 3.33

Let m = total number of faces in a die

⇒m = 6

As die is roll 10 times

⇒n = 10

Now,

Let Y = number of different faces appears

Now,

Expected value, E(Y) = m - m $\left(\begin{array}{ccc}m-1\\m\end{array}\right)^{n}$

= $6 - 6\left(\begin{array}{ccc}6-1\\6\end{array}\right)^{10} = 6 - 6\left(\begin{array}{ccc}5\\6\end{array}\right)^{10}$

5 0

3 years ago