Answer:
1/12
Step-by-step explanation:
you need to make sure that they have a common denominator before doing anything.
Find the lowest common multiple (lcm), which would be 12 (3 x 4 = 12)
So then, put 12 as both denominators, and subtract.
7/12 - 9/12 is equal to 28/12 - 27/12, because 3 miltiplied by 4 equals 12, therefore you mutiply the 7 by the 4, and 4 miltiplied by 3 equals 12, therefore you multiply the 9 by the 3.
Sorry if this is confusing, i tried explaining as best i could! Hope this helped!
Focus on triangles DFC and DFE:
- They are both right triangles because DF is perpendicular to EC
So, the two triangles are congruent. It follows that CF=FE, and in particular
And since x=3, the length of EF is
1. Area of a circle is pi x R^2
Area = 3.14 x 18^2
Area = 3.14 x 324= 1017.36 sq. In.
The blade covers 122 out of 360 degrees.
1017.36 x 122/360 = 345 square inches.
2.
Like above.
Area =3.14 x 75^2 = 17,662.5 square feet
17662.5 x 80/360 = 3,925 square feet.
Answer:
6 times the square root 2
Step-by-step explanation:
Hi there!
Since this is a 45-45-90 triangle, we know the sides are a, a, and a times the square root of two.
Since we can see the 6 is on of the sides that has the 90 degree corner, we know that 6 is our a.
Therefore, we know k is the hypotenuse and is 6 times the square root 2.
Hope this helped, have a great day! ^u^
Answer:x(x-20)=x•x + x•-20
= x^2 + -20x
= x^2 - 20x
Step-by-step explanation:
