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olya-2409 [2.1K]
3 years ago
10

If a=3 and b=5 then ab/15+a(6+7b)=

Mathematics
2 answers:
lilavasa [31]3 years ago
8 0

Answer:155

Step-by-step explanation:

If a=3 and b=5 then

3•5/15+3•6+7•5=155

UNO [17]3 years ago
5 0
The answer is : 2/15ax(53b+45)
Factor the expression
ax(b/15+6+7b)
Calculate
ax(106/15b+6)
Factor pression
ax2/15x(53b+15x3)
Multiple the numbers
ax2/15x(53b+45)
Reorder the terms

Solution: 2/15ax(53b+45)
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How many inches would a point on the outer edge of the large gear travel in a 150º rotation? (The gear has a radius of 4 inches)
MaRussiya [10]
Your answer would be 600. all u have to do is multiply the degree rotation to the radius.
hope this has helped.
8 0
3 years ago
Read 2 more answers
For each given p, let ???? have a binomial distribution with parameters p and ????. Suppose that ???? is itself binomially distr
pshichka [43]

Answer:

See the proof below.

Step-by-step explanation:

Assuming this complete question: "For each given p, let Z have a binomial distribution with parameters p and N. Suppose that N is itself binomially distributed with parameters q and M. Formulate Z as a random sum and show that Z has a binomial distribution with parameters pq and M."

Solution to the problem

For this case we can assume that we have N independent variables X_i with the following distribution:

X_i Bin (1,p) = Be(p) bernoulli on this case with probability of success p, and all the N variables are independent distributed. We can define the random variable Z like this:

Z = \sum_{i=1}^N X_i

From the info given we know that N \sim Bin (M,q)

We need to proof that Z \sim Bin (M, pq) by the definition of binomial random variable then we need to show that:

E(Z) = Mpq

Var (Z) = Mpq(1-pq)

The deduction is based on the definition of independent random variables, we can do this:

E(Z) = E(N) E(X) = Mq (p)= Mpq

And for the variance of Z we can do this:

Var(Z)_ = E(N) Var(X) + Var (N) [E(X)]^2

Var(Z) =Mpq [p(1-p)] + Mq(1-q) p^2

And if we take common factor Mpq we got:

Var(Z) =Mpq [(1-p) + (1-q)p]= Mpq[1-p +p-pq]= Mpq[1-pq]

And as we can see then we can conclude that   Z \sim Bin (M, pq)

8 0
3 years ago
A cylinder has a radius of 8 inches and a volume of approximately 2411.52 cubic inches. What is the height of the cylinder?
DerKrebs [107]

Answer:

a

Step-by-step explanation:

v=pixrsqaurexh

2411.52=pix8squarexh

2411.52=64pixh

2411.54/64pi=h

11.99=12

7 0
3 years ago
Write the Prime factors that 24 and 36 have in common By showing them multiplied together
lakkis [162]

The prime factors that the numbers 24 and 36 have in common are found out to be; 2 × 2 × 3

<h3>How to get prime factors? </h3>

A prime factor of a number is simply factor of that number that is a prime number. This means that any of the prime numbers that can be multiplied to give the original number.

Now, we have;

Prime factors of 36; 2 × 2 × 3 × 3

Prime factors of 24; 2 × 2 × 2 × 3

The prime factors that they have in common will be; 2 × 2 × 3

Read more about Prime factors at; brainly.com/question/1081523

#SPJ1

5 0
2 years ago
Can someone answer this question please please help me I really need it if it’s correct I will mark you brainliest .
I am Lyosha [343]

Formula for the area of a quarter circle: A = (pi x r^2) / 4

A = (3.14 x 64) / 4

A = 200.96 / 4

A = 50.24 square yards

Hope this helps! :)

5 0
3 years ago
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