2 years ago

Please I really need help on this one

2 answers:

7 0

Answer:

$r = \frac{d}{2} \\ r = \frac{5}{2} \\ r = 2.5cm$

3 0

Radius: 2.5 centimeters

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trapecia [35]

Multiply the second equation by -2. This will cancel out the y

6 0

2 years ago

Mashutka [201]

Answer: $\frac{5}{35}$

Step-by-step explanation:

Since, the total number of contestant = 7,

Thus, the probability that out of 3 contestant, me and my friend is chosen

= $\frac{2_C_2\times 5_C_1}{7_C_3}$

= $\frac{\frac{2!}{2!0!}\times \frac{5!}{1!\times 4!}}{\frac{7!}{4!\times 3!}}$

= $\frac{1\times 5}{\frac{7\times 6\times 5\times 4!}{4!\times 6}}$

= $\frac{5}{35}$

⇒ Third Option is correct.

4 0

2 years ago

shusha [124]

Answer:

Step-by-step explanation:

Add 7y and 5y which equals 12y. Then subtract 3y from 12y and u get 9y. It might be wrong

8 0

2 years ago

Monica [59]

The answer above is correct

3 0

2 years ago

Harman [31]

27/100 because you can't simplify 27 and 100 so it's just 27/100

7 0

2 years ago