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Zarrin [17]
3 years ago
7

What is the area of a semicircle with the diameter of 15

Mathematics
1 answer:
Alina [70]3 years ago
7 0

Answer:

you divide 15 by 2 to get the radius, then do pie times radius to the second power, so

3.14*7.5*7.5= 23.55

that is ur answer!

Step-by-step explanation:

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Line segment AB has endpoints A(-1.5, 0) and B(4.5 8). Point C is on line segment AB located at (0, 2)
Pie

Answer:

The ratio of AC/CB=1/3

Step-by-step explanation:

We use the section formula:

(\frac{mx_2+nx_1}{m+n},\frac{my_2+ny_1}{m+n})

We substitute the point A(-1.5,0) and B(4.5,8).

We plug in the points to get:

(\frac{4.5m - 1.5n}{m+n},\frac{8m+n \times 0}{m+n})

This is supposed to be equal to: (0,2).

(\frac{4.5m - 1.5n}{m+n},\frac{8m+n \times 0}{m+n}) = (0,2)

We can equate, corresponding coordinates to find m and n.

\frac{4.5m - 1.5n}{m + n}  = 0

This implies that:

4.5m - 1.5n = 0

4.5m  = 1.5n

\frac{m}{n}  =  \frac{1.5}{4.5}

\frac{m}{n}  =  \frac{1}{3}

Therefore the ratio is m:n=1:3

4 0
3 years ago
HELP PLEASE, THIS IS IN MATH CLASS AND IM VERY CONFUSED TY AND HAVE A GOOD DYA
Lady bird [3.3K]

Answer:

b

Step-by-step explanation:

YES WICH IS BASICLY 2

4 0
3 years ago
Read 2 more answers
ms jones has 754 cookies she wants to give to 5 teachers at thre school. how many cookies does each friend get?
frutty [35]

Answer:

about 150

just divide dude

6 0
3 years ago
Read 2 more answers
The square of a number is 12 less then 7 times the number. 2hat is the number
Salsk061 [2.6K]
Hello.

The are answer is 4 or 3 
<span>

3^2 = 7(3) - 12
9 = 21 - 12
9 = 9

</span>4^2 = 7(4) - 12
16 = 28 - 12
16 = 16

Have a nice day
3 0
3 years ago
Can you guys give a Ratio problem for my class?
dalvyx [7]

Answer:

no

Step-by-step explanation:

5 0
3 years ago
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