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charle [14.2K]
2 years ago
15

3) From the figure below, give the area of the shaded blue region

Mathematics
2 answers:
Scrat [10]2 years ago
7 0

Answer:

15 cm

Step-by-step explanation:

This could help

go to you tube and paste Area of Shaded Region - Circles, Rectangles, Triangles, & Squares - Geometry

The Organic Chemistry Tutor

coldgirl [10]2 years ago
3 0

Answer:

  • 96 cm²

Step-by-step explanation:

<u>Required area is:</u>

  • A = 10*15 - 6*9 = 96 cm²
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PLZ HELP THIS IS TIMED!!!!
mihalych1998 [28]

Answer:

For the sequence is -\frac{2}{3} ,-4 ,-24 ,-144 ,...

Hence the formula f(x)=-\frac{2}{3}(6)^{x-1} for x=1,2,3,... represents the given geometric sequence

Step-by-step explanation:

Given sequence is -\frac{2}{3} ,-4 ,-24 ,-144 ,...

To find the formula to describe the given sequence :

Let a_1=\frac{-2}{3} ,a_2=-4 ,a_3=-24,...

First find the common ratio

r=\frac{a_2}{a_1} here  a_1=\frac{-2}{3} and,a_2=-4

=\frac{-4}{\frac{-2}{3}}

=\frac{4\times 3}{2}

=\frac{12}{2}

r=6

r=\frac{a_3}{a_2} here  a_2=-4 and a_3=-24

=\frac{-24}{-4}

=6

r=6

Therefore the common ratio is 6

Therefore the given sequence is geometric sequence

The nth term of the geometric sequence is

a_n=a_1r^{n-1}

The formula which describes the given geometric sequence is

f(x)=a_1r^{x-1} for x=1,2,3,...

=\frac{-2}{3}6^{x-1} for x=1,2,3,...

Now verify that f(x)=a_1r^{x-1} for x=1,2,3,... represents the given geometric sequence or not

put x=1 and the value of a_1 in f(x)=a_1r^{x-1} for x=1,2,3,...

we get f(1)=-\frac{2}{3}(6)^{1-1}

=-\frac{2}{3}(6)^0

=-\frac{2}{3}

Therefore f(1)=-\frac{2}{3}

put x=2 we get f(2)=-\frac{2}{3}(6)^{2-1}

=-\frac{2}{3}(6)^1

=-\frac{12}{3}

Therefore f(2)=-4

put x=3 we get f(3)=-\frac{2}{3}(6)^{3-1}

=-\frac{2}{3}(6)^2

=-\frac{2(36)}{3}

Therefore f(3)=-24

Therefore the sequence is f(1),f(2),f(3),...

Therefore  the sequence is -\frac{2}{3} ,-4 ,-24 ,-144 ,...

Hence the formula f(x)=a_1r^{x-1} for x=1,2,3,... represents the given geometric sequence is verified

Therefore the formula f(x)=-\frac{2}{3}(6)^{x-1} for x=1,2,3,... represents the given geometric sequence

7 0
3 years ago
Read 2 more answers
Please anybody help please
wel

Answer:

x= -3 and y = 6

Step-by-step explanation:

so basically what you are trying to do is reduce into finding x and y

what you do is you want to find a number to multiply one of the equations in order to get the same x or y value does not matter which

so,...

we can do

either 20x or 15y

we will go with the smallest 15y

so for both equations multiply the whole thing by 5 for the first equation and by 3 for the second

5 x 5x+3y=3 --> 1

3 x 4x+5y=18 --> 2

we then get

25x+15y = 15 -->1

12x + 15y = 54 -->2

then now that you have the same Y values you can subtract ! which cancels out both the 15y

25x+15y = 15 -->1

- 12x + 15y = 54 -->2

13x =-39

so now x=-3 and all you have to do with x = -3 is sub this into either one of the equations that you started with  !

x = -3

5(-3) +3y =3

-15 + 3y = 3

3y = 3+15

3y=18

y = 6!

5 0
2 years ago
Hi can you match these for me :(
podryga [215]

Answer:1c .          3a .             4b .           5d .       2e    

Step-by-step explanation:sorry if wrong not super good

4 0
3 years ago
The measure of one angle is 7 times the measure of its complement.Find each angle measure
aleksklad [387]
<span>let the angles be x and y.
as they are compliment
x+y=90 
also given
x=7y 

substituting value of x in first equation
7y+y=90
8y=90 
therefore 
y=11.25
x=7*y=78.75</span>
7 0
3 years ago
What would go in the blank?
luda_lava [24]

Answer:44

Step-by-step explanation:

Because all angles are the same on a triangle

8 0
2 years ago
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