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
laila [671]
3 years ago
7

PLEASE CHECK IF THIS IS CORRECT YOU WILL GET BRANLIEST

Mathematics
1 answer:
NARA [144]3 years ago
7 0

1) 216

2) 1

3) 450 ml

4)15 packs

5)12 sq m

Step-by-step explanation:

Step 1:

1) The series given is the cube of the first n natural numbers. Hence the nth term of the series can be obtained by n³.

Here we need the 6th term, so the cube of 6 is 216

Step 2 :

2 ) Area of the cube is given as 8000 cubic cm.

Hence side of the cube is 20 cm cube

The radius of the sphere is 20 cm as the diameter is given as 10 cm.

Hence number of spheres that can be placed in a cube of side 20 cm is 20/20 = 1

Step 3 :

3)

Total quantity of the mixture purchased from the chemist is 750 ml

Syrup and alcohol are in the ration 3:2

Hence the quantity of syrup in the mixture = 3/5 * 750 = 450 ml

Step 4 :

4)

Length and breadth of the given room is 17 m and 15 m

Hence its area is 17 * 5 = 85 sq m.

Size of the tiles is 1 sq m

So for covering 85 sq m we need 85/1 = 85 tiles

Since the tiles are bought in packs of 6 we need 85/6 packs which is approximately 15 packs of tiles.

Step 5 :

5)

Surface area of the given  box with length as l, breadth as b and width as w is

2lw+2 lh+2 wh

here we have l,b,w as 3,2,2

so surface area is 3*2*2 = 12 sq m  

You might be interested in
2 &lt; X &lt; 8<br> x is an integer.<br> Write down the possible values of x.
Rufina [12.5K]

answer: 3, 4, 5, 6, 7

4 0
3 years ago
Simon makes 30 cakes. He gives of the cakes to Sali. He gives 10% of the 30 cakes to Jane. 5 What fraction of the 30 cakes does
Novosadov [1.4K]
1/5 = 0.2 = 20%

100% - 20% - 10% = 70%

He left 70%

<33
6 0
3 years ago
The probability density function of the time to failure of an electronic component in a copier (in hours) is f(x) for Determine
salantis [7]

The question is incomplete. Here is the complete question.

The probability density function of the time to failure of an electronic component in a copier (in hours) is

                                              f(x)=\frac{e^{\frac{-x}{1000} }}{1000}

for x > 0. Determine the probability that

a. A component lasts more than 3000 hours before failure.

b. A componenet fails in the interval from 1000 to 2000 hours.

c. A component fails before 1000 hours.

d. Determine the number of hours at which 10% of all components have failed.

Answer: a. P(x>3000) = 0.5

              b. P(1000<x<2000) = 0.2325

              c. P(x<1000) = 0.6321

              d. 105.4 hours

Step-by-step explanation: <em>Probability Density Function</em> is a function defining the probability of an outcome for a discrete random variable and is mathematically defined as the derivative of the distribution function.

So, probability function is given by:

P(a<x<b) = \int\limits^b_a {P(x)} \, dx

Then, for the electronic component, probability will be:

P(a<x<b) = \int\limits^b_a {\frac{e^{\frac{-x}{1000} }}{1000} } \, dx

P(a<x<b) = \frac{1000}{1000}.e^{\frac{-x}{1000} }

P(a<x<b) = e^{\frac{-b}{1000} }-e^\frac{-a}{1000}

a. For a component to last more than 3000 hours:

P(3000<x<∞) = e^{\frac{-3000}{1000} }-e^\frac{-a}{1000}

Exponential equation to the infinity tends to zero, so:

P(3000<x<∞) = e^{-3}

P(3000<x<∞) = 0.05

There is a probability of 5% of a component to last more than 3000 hours.

b. Probability between 1000 and 2000 hours:

P(1000<x<2000) = e^{\frac{-2000}{1000} }-e^\frac{-1000}{1000}

P(1000<x<2000) = e^{-2}-e^{-1}

P(1000<x<2000) = 0.2325

There is a probability of 23.25% of failure in that interval.

c. Probability of failing between 0 and 1000 hours:

P(0<x<1000) = e^{\frac{-1000}{1000} }-e^\frac{-0}{1000}

P(0<x<1000) = e^{-1}-1

P(0<x<1000) = 0.6321

There is a probability of 63.21% of failing before 1000 hours.

d. P(x) = e^{\frac{-b}{1000} }-e^\frac{-a}{1000}

0.1 = 1-e^\frac{-x}{1000}

-e^{\frac{-x}{1000} }=-0.9

{\frac{-x}{1000} }=ln0.9

-x = -1000.ln(0.9)

x = 105.4

10% of the components will have failed at 105.4 hours.

5 0
4 years ago
What is the answer to the blank<br> 1 3 5<br> 2 4 _<br><br> (It is not 6)
Makovka662 [10]
It might be 9 if it's not 6 ...but I can't see how it wouldn't be 6?
7 0
3 years ago
Read 2 more answers
115.6, 114.52 , 15.305, 114.483 from greatest to least
jekas [21]

Answer:

115.6, 114.52, 114.483, 15.305

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Other questions:
  • Write the sentence as an equation.<br> z plus 372 is equal to 160
    6·1 answer
  • 99 Points Need Help! How to reflect over y= -x+6
    15·2 answers
  • Maria's Coffee Shop makes a blend that is a mixture of two types of coffee. Type A coffee costs Maria
    7·1 answer
  • I need help!! can some help me as soon as possible please !
    9·1 answer
  • Find the slope (m) and y -intercept (b) of the equation in standar form 2x-3y=6​
    9·2 answers
  • Solve 2x + 6 &gt; 10.
    9·1 answer
  • The side lengths of a triangle are 6, 8, and 12. Is this a right triangle?
    9·2 answers
  • What is the term to term rule for this sequence 64 32 16 8 4
    14·1 answer
  • A clothing store is having a clearance sale. The advertisement says "All shirts one
    10·1 answer
  • There are 12 students including 4 boys in a classroom. Find the number of girls in 8 such classrooms
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!