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
anyanavicka [17]
3 years ago
14

Keaton is building rectangular table top and wants to put metal border around the edge. The length of the table top is 1.83 mete

rs and the width is 0.74 meter.Use the formula P = 2L+ 2w to find the perimeter of the table top. NUMBER 2 AND 3

Mathematics
2 answers:
Kamila [148]3 years ago
8 0
Kay so plus it in and you get 2(1.83)+2(0.74)
Now it's time to multiply...
2(1.83)=3.66
2(0.74)=1.48
now you can add them up...
5.14 meters is your answer.
yan [13]3 years ago
7 0

Answer:

The perimeter of the table top is 5.14 meter.

Step-by-step explanation:

Given : Keaton is building rectangular table top and wants to put metal border around the edge. The length of the table top is 1.83 meters and the width is 0.74 meter.

To find : The perimeter of the table top ?

Solution :

The length of the table top is L=1.83 meters.

The width of the table top is W=0.74 meters.

The formula to find the perimeter is P=2L+2W

Substitute the value in the formula,

P=2(1.83)+2(0.74)

P=3.66+1.48

P=5.14

Therefore, The perimeter of the table top is 5.14 meter.

You might be interested in
In October of 2012, Apple introduced a much smaller variant of the Apple iPad, known at the iPad Mini. Weighing less than 11 oun
sveticcg [70]

Answer:

a. f_X(x) = \dfrac{1}{3.5}8.5

b. the probability that the battery life for an iPad Mini will be 10 hours or less is 0.4286 which is about 42.86%

c.  the probability that the battery life for an iPad Mini will be at least 11 hours is 0.2857 which is about 28.57 %

d. the probability that the battery life for an iPad Mini will be between 9.5 and 11.5 hours is 0.5714 which is about 57.14%

e.  86 should have a battery life of at least 9 hours

Step-by-step explanation:

From the given information;

Let  X represent the continuous random variable with uniform distribution U (A, B) . Therefore the probability  density function can now be determined as :

f_X(x) = \dfrac{1}{B-A}A

where A and B  are the two parameters of the uniform distribution

From the question;

Assume that battery life of the iPad Mini is uniformly distributed between 8.5 and 12 hours

So; Let A = 8,5 and B = 12

Therefore; the mathematical expression for the probability density function of battery life is :

f_X(x) = \dfrac{1}{12-8.5}8.5

f_X(x) = \dfrac{1}{3.5}8.5

b. What is the probability that the battery life for an iPad Mini will be 10 hours or less (to 4 decimals)?

The  probability that the battery life for an iPad Mini will be 10 hours or less can be calculated as:

F(x) = P(X ≤x)

F(x) = \dfrac{x-A}{B-A}

F(10) = \dfrac{10-8.5}{12-8.5}

F(10) = 0.4286

the probability that the battery life for an iPad Mini will be 10 hours or less is 0.4286 which is about 42.86%

c. What is the probability that the battery life for an iPad Mini will be at least 11 hours (to 4 decimals)?

The battery life for an iPad Mini will be at least 11 hours is calculated as follows:

P(X\geq11) = \int\limits^{12}_{11} {\dfrac{1}{3.5}} \, dx

P(X\geq11) =  {\dfrac{1}{3.5}} (x)^{12}_{11}

P(X\geq11) =  {\dfrac{1}{3.5}} (12-11)

P(X\geq11) =  {\dfrac{1}{3.5}} (1)

P(X\geq11) = 0.2857

the probability that the battery life for an iPad Mini will be at least 11 hours is 0.2857 which is about 28.57 %

d. What is the probability that the battery life for an iPad Mini will be between 9.5 and 11.5 hours (to 4 decimals)?

P(9.5 \leq X\leq11.5) =\int\limits^{11.5}_{9.5} {\dfrac{1}{3.5}} \, dx

P(9.5 \leq X\leq11.5) ={\dfrac{1}{3.5}} \, (x)^{11.5}_{9.5}

P(9.5 \leq X\leq11.5) ={\dfrac{1}{3.5}} (11.5-9.5)

P(9.5 \leq X\leq11.5) ={\dfrac{1}{3.5}} (2)

P(9.5 \leq X\leq11.5) =0.2857* (2)

P(9.5 \leq X\leq11.5) =0.5714

Hence; the probability that the battery life for an iPad Mini will be between 9.5 and 11.5 hours is 0.5714 which is about 57.14%

e. In a shipment of 100 iPad Minis, how many should have a battery life of at least 9 hours (to nearest whole value)?

The probability that battery life of at least 9 hours is calculated as:

P(X \geq 9) = \int\limits^{12}_{9} {\dfrac{1}{3.5}} \, dx

P(X \geq 9) =  {\dfrac{1}{3.5}}(x)^{12}_{9}

P(X \geq 9) =  {\dfrac{1}{3.5}}(12-9)

P(X \geq 9) =  {\dfrac{1}{3.5}}(3)

P(X \geq 9) =  0.2857*}(3)

P(X \geq 9) =  0.8571

NOW; The Number of iPad  that should have a battery life of at least 9 hours is calculated as:

n = 100(0.8571)

n = 85.71

n ≅ 86

Thus , 86 should have a battery life of at least 9 hours

3 0
3 years ago
How many seconds are in the month of February?
Verizon [17]

the answer is 2,419,200 seconds

6 0
3 years ago
Read 2 more answers
Find the length of x 10/15=x/20
gayaneshka [121]

I think 40/3 is the answer you’re looking for.

4 0
3 years ago
The measure of angle QPR = ???? degrees
katovenus [111]
QPR = 1/2 (31 + 98)


Angle QPR = 64.5 degrees
4 0
3 years ago
If the pool is 3600 ft and cost 0.75 per square foot what is the cost
ikadub [295]
Hi,
side=3600 foot
area=side*side
area=3600*3600
area=129600<span>0</span>0 square foot
cost=area*rate
cost=12960000*0.75
cost=Rs.(or whichever currency)9720000
Hope this helps you.
5 0
3 years ago
Other questions:
  • If isosceles triangle ABC has a 130° angle at vertex B, which statement must be true?
    8·2 answers
  • Question 1(Multiple Choice Worth 1 points)
    6·2 answers
  • Solve the following equation: <br>(n + 1) + 3(n - 1) = 2(n - 1)(n + 1)​
    13·1 answer
  • Which rate is the lowest price?<br> $5.60 for 8 <br> $4.80 for 6 <br> $4.50 for 5 <br> $0.75 each
    14·1 answer
  • Evaluate −6 − (−4). (1 point)
    14·2 answers
  • How is the rangeof a set of data different from a IQR
    9·2 answers
  • Find the greiple of<br>R(x) =( x ^3+10x^2 +32x+32)÷<br>(X^2 + 2x-15)​
    9·1 answer
  • PLZ HELPPPP<br><br> C candies cost 5 dollars. how much money would 12 dollars cost?
    11·2 answers
  • Does anyone understand this and know what the answer is?
    15·1 answer
  • The hanger image below represents a balanced equation
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!