he already baked 11 pies and it says that he can bake 1 pie with an additional cup of sugar so 1 cup of suger equals 1 pie wich means that he can make 34 pies with the additionnal cups of sugar and he already baked 11 and 11 + 34 = 45.

8 0

3 years ago

A bag contains 7 red and 10 white balls. In how many ways 4 balls are selected if there are more than 2 red balls? (Please solve

erastova [34]

Answer:

385 ways

Step-by-step explanation:

Given;

7 red balls

10 white balls

In how many ways can 4 balls be selected if there are more than 2 red balls.

Selecting 4 balls which must contain more than 2 red balls, will be 3 red balls and 1 white ball to make it 4 in total, or all the 4 balls selected will red balls.

= 3 red balls and 1 white ball OR 4 red balls

= 7C₃ x 10C₁ + 7C₄

$= \frac{7!}{4!3!} *\frac{10!}{9!1!} \ \ + \ \frac{7!}{3!4!} \\\\= (35*10) \ + \ 35\\\\= 350 \ + 35\\\\= 385 \ ways$

Therefore, there are 385 ways of selecting 4 balls, if there are more than 2 red balls.

5 0

3 years ago

34. Consider the following rectangular prism with a width, length and height of 3 m, 5 m and 12 m respectively. Find the surface

kogti [31]

127m would be surface area

7 0

3 years ago