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Pepsi [2]
3 years ago
15

The triangle in this question is not drawn accurately. Use Pythagoras' Theorem to explain why triangle A must be right-angled.

Mathematics
1 answer:
Wewaii [24]3 years ago
6 0

Answer:

We know the triangle in a right triangle because of the pythagoras theorem: 5^2+12^2=13^2

25 + 144 equals 169, making it a right triangle since the equation works.

Step-by-step explanation:

I tried to explain this the best i could, hope it works :)

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In 2012, Red Rose tea randomly began placing 1 of 12 English porcelain miniature figurines in a l00-bag box of the tea, selectin
Mandarinka [93]

Answer:

n = 144 bags

Step-by-step explanation:

Given:-

- English porcelain miniature figurines in total = 12

- 1 figurine is to be placed in a 100-bag box

Find:-

On the average, how many boxes of tea must be pur-chased by a customer to obtain a complete collection consisting of the 12 nautical figurines?

Solution:-

- We will denote a random variable (X) as the number of figurines in (n) number of bags purchased.

- The probability (p) of finding a figurine in a single bag is ( success ):

                                 p = 1 / 12

- The random variable (X) can follow a binomial distribution with parameters n = number of bags purchased, and p = probability of selecting a bag with a figurine.

                                X ~ B ( n , 1/12 )

- The average number of bag "n" that need to be purchased to find all 12 figurines available:

                               E ( X ) = 12

                               n*p = 12

                               n = 12 / p

                               n = 12 / ( 1 / 12) = 12^2

                               n = 144 bags

- A total of average n = 144 bags need to be purchased to find all the 12 figurines.

6 0
3 years ago
Mia says that in the number 5,555, all the digits have the same value.is she correct?explain why or why not.
ANEK [815]
5,000-500-50-5 they are not all the same value.
8 0
3 years ago
Read 2 more answers
A square garden has an area of 400 square feet. Each side of the garden is (x-10) feet in length.
Mandarinka [93]

Answer:

400 = (x - 10)²

x² -20x -300 = 0

x = 30 and x = -10

Length side of the garden = 20 feet

Step-by-step explanation:

Given:

Area of square garden = 400 square feet

Length side of the garden = (x - 10) feet

Find:

Length side of the garden

Computation:

Area of square = side²

Area of square garden = Length side of the garden²

400 = (x - 10)²

400 = x² -20x + 100

x² -20x -300 = 0

x² -30x  + 10x -300 = 0

x(x - 30) + 10(x - 30) = 0

(x - 30)(x + 10) = 0

So,

x = 30 and x = -10

Use x = 30 positive number

Length side of the garden = (x - 10) feet

Length side of the garden = (30 - 10) feet

Length side of the garden = 20 feet

7 0
3 years ago
a wheelbarrow can hold 2.4 pounds of cement at a time. if it takes samantha 0.5 trips to transport all of his cement, how much c
-Dominant- [34]

Answer:

1.2 pounds

Step-by-step explanation:

if it only takes her half a trip then she would have half the amount of cement in her wheelbarrow

4 0
3 years ago
Sweatshirt that
Amiraneli [1.4K]

Answer:

Amount of sales tax ≈ $1.3 dollars;

Price with sales tax ≈ $17.58 dollars

Step-by-step explanation:

8% × 16.28 =

8/100 × 16.28 =

0.08 × 16.28 =

1.3024 ≈

1.3

6 0
2 years ago
Read 2 more answers
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