Answer:
Area of circle: 1662.57 cm
Circumference of circle: 144.57 cm
Step-by-step explanation:
Formula of area of circle:
pi x r2 or radius x radius
So, it's 22/7 x 23 x 23 = 1662.571429
Formula of circumference of circle:
2 x pi x radius OR
pi x diameter
Let's use the second method, to find diameter it is radius x 2 = 46
So,
46 x 22/7 = 144.5714286
Answer:
Step-by-step explanation:
oof. okay.
so basically you have to find the area of each face of this shape
so I will write each area for you just so that I can keep track of where I am.
So the top one is 2*3=6
and then the side of that is 3*1=3
and then the next stair is 3*1 =3
and then again another 3*1=3
and the top of the bottom stair is 3*1=3
the side of that last one is 2*3=6
the back of the stair thingy is 4*3=12
now the weird side is (4*2)+(3*1)+(2*1)=13
you need two of those sides so another (4*2)+(3*1)+(2*1)=13
<em>(for these ones I divided it up into three parts; one were each star begins making it appear that there is a small rectangle on top of a medium rectangle on top of a large rectangle)</em>
and the bottom is 4*3=12
so then you add them all up
6+3+3+3+3+6+12+13+13+12
that all equals 74
I hope this helps!
Hello there!
Answer:
The slope is 9, and the y-intercept is –2
Step-by-step explanation:
The equation is y = 9x - 2
This follows the equation y = mx + b
Where as:
m = slope
b = y-intercept
When you know this, you would figure out that 9 is in the same place as m, and -2 is in the same place as b.
The y-intercept would not be a positive 2 because when there's a minus sign next to the number in the y-intercept spot, then you would have to bring that over to the number. We can also say the minus sign belongs to the 2, making it a -2.
With the information we know now, we can say that the slope of the equation is 9, and the y-intercept would be -2.
Therefore, giving your answer as "The slope is 9, and the y-intercept is –2"
Answer:
her grandson would be 7 and her granddaughter would be 5.
Step-by-step explanation:
their ages together is 12. we divide that by the two grandchildren, and adjust it to where they are to years apart.
12÷2=6
6+6 + adjusted = 5 and 7.
to fact check 5+7=12, and 7 is two numbers above 5.
