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Lerok [7]
3 years ago
9

Is it's an isosceles trapezoid? how do you know???

Mathematics
2 answers:
NNADVOKAT [17]3 years ago
7 0

Your answer would be, Yes! It is an Isosceles Trapezoid, Because, Isosceles trapezoids have at least one set of opposite sides, that are parallel, mainly the base, and it's opposite. The non-base sides are equal in length to each other, and the base angles are equal to each other.








Hope that helps!!!!!!

kkurt [141]3 years ago
3 0

Answer:

Yes, it is an isosceles trapezoid. In an isosceles trapezoid, its non-parallel sides make equal angles with the base and the two sides are equal.

Step-by-step explanation:

A trapezoid is a 3 dimensional figure formed from trapezium. It is a quadrilateral with one pair of parallel sides to be equal and a line of symmetry bisecting one pair of opposite sides.

A trapezoid with the two non-parallel sides the same length is called an isosceles trapezoid. Its non parallel sides make equal angles with the base.

Therefore, the rough sketch shows an isosceles trapezoid.

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The garden club
dedylja [7]

Answer:

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3 0
3 years ago
The amount of toothpaste in a tube is normally distributed with a mean of 6.5 ounces and a standard
Anarel [89]

Answer:

a) 266 tubes ,  TC_r = $53.2

b) 266 tubes ,  T.Loss = $13.30

Step-by-step explanation:

Given:

- The sample size of tubes n = 1,000 tubes

- The mean of the sample u = 6.5 oz

- The standard deviation of the sample s.d = 0.8 oz

- Cost of manufacturing a tube C_t = 50 cents

- Cost of refilling a tube C_r = 20 cents

- Profit loss per tube Loss = 5 cents

Find:

a). How many tubes will be found to contain less than 6 ounces? In that case, what will be the total cost of the  refill?

b) How many tubes will be found to contain more than 7 ounces? In that case, what will be the amount of  profit lost?

Solution:

- First we will compute the probability of tube containing less than 6 oz.

- Declaring X : The amount of toothpaste.

Where,                         X ~ N ( 6.5 , 0.8 )

- We need to compute P ( X < 6 oz )?

Compute the Z-score value:

                  P ( X < 6 oz ) =  P ( Z < (6 - 6.5) / 0.8 ) = P ( Z < -0.625 )

Use the Z table to find the probability:

                               P ( X < 6 oz ) = P ( Z < -0.625 ) = 0.266

- The probability that it lies below 6 ounces. The total sample size is n = 1000.

       The number of tubes with X < 6 ounces = 1000* P ( X < 6 oz )

                                                                           = 1000*0.266 = 266 tubes.

- The total cost of refill:

                            TC_r = C_f*(number of tubes with X < 6)

                            TC_r = 20*266 = 5320 cents = $53.2

- We need to compute P ( X > 7 oz )?

Compute the Z-score value:

                  P ( X > 7 oz ) =  P ( Z > (7 - 6.5) / 0.8 ) = P ( Z < 0.625 )

Use the Z table to find the probability:

                               P ( X > 7 oz ) = P ( Z > 0.625 ) = 0.266

- The probability that it lies above 7 ounces. The total sample size is n = 1000.

       The number of tubes with X > 7 ounces = 1000* P ( X > 7 oz )

                                                                           = 1000*0.266 = 266 tubes.

- The total cost of refill:

                            T.Loss = Loss*(number of tubes with X > 7)

                            T.Loss = 5*266 = 1330 cents = $13.30

5 0
3 years ago
Please help anything is appreciated I will give you Brinley if it’s right
bearhunter [10]

I wish you good lessons

4 0
3 years ago
Which function is the inverse of function f? f(x)=9x^2-12
Allisa [31]

Answer:

f−1(x)=√x+123,−√x+123

Step-by-step explanation:

5 0
3 years ago
What is the slope of the equation y– 3 = -4(х – 5)? A. -4 B. -3 C. 20 D. 23
Rainbow [258]

Answer:

Your answer would be: A. -4

Step-by-step explanation:

Use the slope-intercept form y = mx+b to find the slope m.

4 0
3 years ago
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