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4 years ago

Is a rectangle a trapezoid

Mathematics

2 answers:

lubasha [3.4K]4 years ago

6 0

No rectangles are not trapezoids.

bezimeni [28]4 years ago

6 0

No!! They are not a rectangle

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The average watermelon weighs 8 lbs with a standard deviation of 1.5. Find the probability that a watermelon will weigh between

Andrew [12]

Answer:

The probability that a watermelon will weigh between 6.8 lbs and 9.3 lbs.

P(6.8 ≤X≤9.3) = 0.5932

Step-by-step explanation:

Step 1:-

by using normal distribution find the areas of given x₁ and x₂

Given The average watermelon weighs 8 lbs

μ = 8

standard deviation σ = 1.5

I) when x₁ = 6.8lbs and μ = 8 and σ = 1.5

$z_{1} = \frac{x_{1} -mean}{S.D} = \frac{6.8-8}{1.5} = - 0.8$

ii) when x₂ = 9.3 lbs and μ = 8 and σ = 1.5

$z_{2} = \frac{x_{2} -mean}{S.D} = \frac{9.3-8}{1.5} = 0.866>0$

<u>Step2</u>:-

The probability that a watermelon will weigh between 6.8 lbs and 9.3 lbs.

P(6.8 ≤X≤9.3) = A(z₂) - A(-z₁)

= A(0.866) - A(-0.8)

= A(0.866)+ A(0.8)

check below normal table

= 0.3051 + 0.2881

= 0.5932

<u>Conclusion</u>:-

The probability that a watermelon will weigh between 6.8 lbs and 9.3 lbs.

P(6.8 ≤X≤9.3) = 0.5932

7 0

3 years ago

The city of Odessa, Texas is building a wheelchair ramp to make their courthouse accessible for persons in a wheel chair. The Am

LuckyWell [14K]

Answer:

No they will not have to install a rest platform.

The ramp will be 29.88 feet long so they will not have to install a rest platform.

Step-by-step explanation:

4 0

3 years ago

The velocity of a particle moving along the x-axis is v(t) = t2 + 2t + 1, with t measured in minutes and v(t) measured in feet p

kkurt [141]

V(t)=t^2+2t+1 integrating we get d(t)

d(t)=t^3/3+t^2+t or more neatly

d(t)=(t^3+3t^2+3t)/3 so

d(2)=(8+12+6)/3

d(2)=26/3

So the particle moves 9 feet (to the nearest foot) in the first two minutes.

6 0

3 years ago

Read 2 more answers

What is the perimeter of the parallelogram???

enot [183]

Answer: 22

explanation: the easiest way is to separate one of the diagonals into a triangle and use the pythagorean theorem.
a^2 + b^2 = c^2
4^2 + 3^3 = c^2
16 + 9 = c^2
25 = c^2
5 = c
you now know that both of the diagonals have a length of 5.
by counting the units on the two straight, you know that their length is 6.
6 + 6 + 5 + 5 = 22

8 0

3 years ago

Someone please help and please make sure the answer is right :(

cluponka [151]

Answer:

it's 11

Have a good day!!

8 0

3 years ago

Is a rectangle a trapezoid​

Is a rectangle a trapezoid