Answer:
-4 ± 2*sqrt(3)
Step-by-step explanation:
Well I'm not quite sure as to what the x= equations are, but for the solution to this quadratic I just used the quadratic formula. This gave me -8 ± sqrt(48)/2, which can be simplified to -4 ± 2 * sqrt(3). Hope this helps :)
Answer:
he had 44 books before he bought those 6
Step-by-step explanation:
If you multiply 6 times 2 it is 12, which means if you take away 12 from 100 that is 88. if you divided 88 by 2 (the same thing you did to the 6 to make it 12%) that would be 44.
We have that:
As we can see, these both triangles can be represented as follows:
As we can see, both triangles have the same angles, then both triangles are similar.
Answer:
Step-by-step explanation:
The circumference formula is
where r is the radius
The circumference of the NAVY Pier Wheel is 439.6
We know the circumference so we solve for r.
So our radius is 70.
The circumference of Navy is 56% of the original wheel. So we can just set up a proportion.
to find the new circumference.
We simplify that and we get y=485
Know we find the radius,
r=
So our radius is 125.
3. The first Ferris wheel circumference is 785. We divide 9 by that to find the wheel movement per minute.
785/9= 87.2 feet per minute
Answer:
Step-by-step explanation:
To find slope you have to take y2-y1 over x2-x1
y2=your second y poiny
y1=first y point
x2=second x point
x1=first x point
Since it is minus a negative you get to change it to a plus sign, because they cancel each other out.
3 + 7
____
-4-0
10/-4
This isn't quite simplified, so you find a common factor for the numerator (top number) and the denominator (bottom number). You should note the number has to go into both numbers, not just one. The largest common factor would be 2 in this case.
10/2=5
-4/2=-2
Now your simplified answer would be 5/2