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arsen [322]
3 years ago
9

A poll is given, showing 30% are in favor of a new building project. If 10 people are chosen at random, what is the probability

that exactly 5 of them favor the new building project?
Mathematics
1 answer:
Schach [20]3 years ago
3 0

Answer:

30%

Step-by-step explanation:

You might be interested in
System
irinina [24]

Answer:B

5.6x10 -10

Step-by-step explanation:

6 0
3 years ago
What is 15 to the 7 power divided by 15 to the 4 power equal to?
Masja [62]

Answer:

3375

Step-by-step explanation:

4 0
3 years ago
Mrs. Isabelle is making paper and plastic foam animals for her first-grade class. She is calculating the amount of wasted materi
PSYCHO15rus [73]
We are given square with side length l. The largest circle that we can cut from that square has diameter equal to that side. This circle is called inscribed circle.

When cutting circle from square paper we will be left with some extra paper. Area of that extra paper can be calculated using formula:
area_of_extra_paper = area_of_square - area_of_circle

Now we can insert formulas:
A =  l^{2} -  ( \frac{l}{2} )^{2}  * \pi  \\ A=l^{2} -   \frac{l^{2}}{4} * \pi  \\ A=l^{2} (1- \frac{ \pi }{4} )

This is area of extra paper when we cut one circle. When we cut multiple circles we have:
A=N*l^{2} (1- \frac{ \pi }{4} )
Where:
N = number of circles
This formula is roughly:
A=0.785*N*l^{2}
6 0
3 years ago
7 3/9 - 2 4/9 =<br>11 3/4 - 5 1/4 =​
jeka57 [31]

1.)

7 \frac{3}{9}  - 2 \frac{4}{9}  \\  =  \frac{66}{9}  -  \frac{22}{9}  \\  =  \frac{44}{9}  \\  = 4 \frac{8}{9}

2.)

11 \frac{3}{4}  - 5 \frac{1}{4}  \\  =  \frac{47}{4}  -  \frac{21}{4}  \\  =  \frac{26}{4}  \\  =  \frac{13}{2}  \\  = 6 \frac{1}{2}

<em>Hope it helps and is useful :)</em>

6 0
3 years ago
Which of the following could be the perimeter of a rectangle with an area of 24 square inches?
Veronika [31]

Answer: C. 20 inches

Step-by-step explanation:

perimeter= 2 x (4+6)=20 inches

7 0
3 years ago
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