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Alja [10]
2 years ago
8

A teacher chooses two students in a class of 15 girls and 10 boys. The students are randomly chosen. What is the probability tha

t the teacher chooses two girls?
1. 3/5
2. 3/7
3. 7/12
4. 7/20
Mathematics
1 answer:
Stella [2.4K]2 years ago
7 0

Answer:

15/25 which simplifies to 3/5 which is the first answer

Step-by-step explanation:

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(will give brainliest)<br> 2x^2-x&gt;0
Doss [256]

Answer:

x<0 or x>1/2

Step-by-step explanation:

3 0
3 years ago
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1. Rút gọn biểu thức A(x) = (x+2)(x+3)(x+5) - (x-1)(x+4)(x+7). Từ đó tìm tất cả các giá trị x sao cho A(x) = 0.
zepelin [54]

x = -29/7

Step-by-step explanation:

A(x) = (x^2 + 5x + 6)(x + 5) - (x^2 + 3x - 4)(x + 7)

= (x^3 + 10x^2 + 31x + 30) - (x^3 + 10x^2 + 17x - 28) = 14x + 58

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3 years ago
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Convert to decimal , then to fraction 75%
UNO [17]
Decimal : 0.75
Fraction : 3/4
8 0
3 years ago
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Hello. I was just wondering the solution to f(x) = 3^x - 1 Thanks!
ludmilkaskok [199]

Answer:

3^x -1

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7 0
3 years ago
A glass fish tank in the shape of a rectangular prism has a base that measures 22 inches by 12 inches. If the tank can hold a ma
Umnica [9.8K]

582.74 square inches of glass is required to construct the tank

Step-by-step explanation:

Base dimensions= 22 x 12 inches

Volume of the fish tank = 3960 cubic inches

Volume = l x w x h

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h = 3960 /(22 x 12)

h = 3960/462

h = 8.57 inches

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= 2(188.57 + 102.8)

= 2(291.37)

= 582.74 square inches

582.74 square inches of glass is required to construct the tank

7 0
4 years ago
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