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Nostrana [21]
3 years ago
8

Teesha is in the chess club. There are 31 students in the club. Four of them will be picked at random to attend an awards banque

t. What is the probability that Teesha will not be randomly chosen to attend the banquet?
a. 31/27
b. 27/31
c. 31/4
d. 4/31
Mathematics
1 answer:
tamaranim1 [39]3 years ago
6 0
Teesha chances are 4/31
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1) The cost of constructing a path 5 m broad inside the boundary of a square lawn at Rs 36.25 per sq. metre is Rs 90625. What is
Svetach [21]

Let , side lawn is a.

Area of boundary is :

A=4\times5\times a\\\\A=20a\ m^2

Now, total cost is given by :

T=20a\times 36.25\\\\90625=725a\\\\a=125\ m

Area left is :

A'=a^2-20a\\\\A'=125^2-20\times 125\ m^2\\\\A'=13125\ m^2

Price to empty space with turfs is :

P=A'\times 20\\\\P=13125\times 20\\\\P=262500

Therefore, the cost of covering the empty space with turfs at the rate of Rs 20 per sq. metre is Rs 262500.

Hence, this is the required solution.

3 0
3 years ago
You need to rent a moving truck for a day you have identify two companies to rent trucks company a charges $45 per day plus $.10
goldfiish [28.3K]
I believe the answer is 150 miles, with a cost of $60
6 0
3 years ago
I will mark you as brainliest if you're answer is correct​
GalinKa [24]

Answer:

perimeter = 28.13 cm

Step-by-step explanation:

Calculate the length of a line drawn from A to C.

sin 85 = b/8, b = 7.97

cos 85 = c/8, c = 0.697

AC² =7.97² + (6 + 0.697)² = 63.52 + 44.85 = 108.37

AC = 10.41

Now you have a right triangle ADC with a known hypotenuse and  one leg.

Using the Pythagorean theorem:

DC² = 10.41² - 5²

DC² = 108.37 - 25 = 83.37

DC = 9.13 cm

perimeter = 5 + 6 + 8 + 9.13 = 28.13 cm

8 0
2 years ago
a rectangle has a length of 9.00 inches with a width of 4.25 inches what is the area in square inches round to the correct signi
Helen [10]
Area = l x w
Area =9 x 4.25
A = 48.25
A≈ 48 in²
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3 years ago
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Iteru [2.4K]

Answer:

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5 0
3 years ago
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