1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Aloiza [94]
2 years ago
5

6. We want to build the smallest cube possible using bricks with dimensions 8 cm - 12 cm 20 cm. How many bricks do we need?​

Mathematics
1 answer:
Georgia [21]2 years ago
7 0

Answer:

1200

Step-by-step explanation:

We’ll need a number that is evenly dividable by all three values: 8,12 & 15. We can develop the generic common multiple by multiplying all three numbers and get 1440. But is that the smallest common multiple? The quick and dirty way to factor the number is to divide it by it’s various elements and see what works. In this case 1440/12=120 which is the smallest common multiple of the three numbers. The smallest length is therefore 120.

In order to find how many bricks just divide (120x120x120)/(8x12x15)=1200 bricks

You might be interested in
Which is the graph of f(x) = (x – 1)(x + 4)?
Arada [10]

Answer:

The fourth graph (last graph)

Step-by-step explanation:

Remember that the zeros of a function are the x-intercepts of the graph. To find the zeros we just need to set the function equal to zero and solve for x:

f(x)=(x-1)(x+4)

(x-1)(x+4)=0

x-1=0,x+4=0

x=1,x=-4

Now we know that the graph or our function intersects the x-axis at x = 1 and x = -4.

Since both x values inside the parenthesis are positive, our parabola is opening upwards.

The only graph opening upwards whose x-intercepts are x = 1 and x = -4 is the fourth one.

We can conclude that the graph of f(x)=(x-1)(x+4) is the fourth one.

5 0
3 years ago
Read 2 more answers
What is the value of p? 13^2 = p
Yuri [45]
169 if you take 13 times 3 you get 39. And 10 times 13 is 130. Add those together and you gat 169
6 0
3 years ago
A boiler has five identical relief valves. The probability that any particular valve will open on demand is 0.93. Assume indepen
noname [10]

Answer:

There is a 99.99998% probability that at least one valve opens.

Step-by-step explanation:

For each valve there are only two possible outcomes. Either it opens on demand, or it does not. This means that we use the binomial probability distribution to solve this problem.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinatios of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

And p is the probability of X happening.

In this problem we have that:

n = 5, p = 0.93

Calculate P(at least one valve opens).

This is P(X \geq 1)

Either no valves open, or at least one does. The sum of the probabilities of these events is decimal 1. So:

P(X = 0) + P(X \geq 1) = 1

P(X \geq 1) = 1 - P(X = 0)

So

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 0) = C_{5,0}.(0.93)^{0}.(0.07)^{5} = 0.0000016807

Finally

P(X \geq 1) = 1 - P(X = 0) = 1 - 0.0000016807 = 0.9999983193

There is a 99.99998% probability that at least one valve opens.

5 0
2 years ago
Read 2 more answers
If you get this right I will mark you as a brainliest
lara [203]
Is it D. 58? or B.91?
4 0
3 years ago
Can someone help with these two questions
kherson [118]

11,513 is the answer I really don't know how to write it all out sorry

3 0
2 years ago
Other questions:
  • Find the missing dimension height:15ft area285ft
    6·1 answer
  • Simplify 6y^-4 with using positive exponents
    15·1 answer
  • Need help please thank you
    11·2 answers
  • (3n + 2n ) - (8n + 7n)
    10·2 answers
  • Each students has 5 dollars and lose 5 dollars rrs how much would the students have
    10·1 answer
  • Which of the following values of t will result in a true statement when substituted into the given equation? A. t = 8 B. t = -8
    7·1 answer
  • Pls help ill give u brainliest!!!!!
    14·1 answer
  • Which effect of reduced stress is a social benefit?
    13·2 answers
  • What is 40 over 30 in decimal form
    5·1 answer
  • 3. Дано: K, P, K, P, OP, = PP., КК, = 5 см. Знайти: OK.​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!