Step-by-step explanation:
a) The circumference of a circle is 360 degrees. so:
7x+15+8x+6x+30=360
21x+45=315
21x=135
x=<u>15</u>
b) This means 7(15)+15=120, 8(15)=120, and 6(15)+30=120. Thus, by the inscribed angle theorem, all the angles measure 60 degrees, and the triangle is thus <u>equilateral</u> and <u>isosceles</u>.
You'll want to convert 3 2/3 into a common denominator with 1/4.
The nearest common denominator of 3 and 4 is 12.
1/4 * 3/3 = 3/12
2/3 * 4/4 = 8/12
You need 3 and 8/12 in total so subtract 3/12 from 3 8/12 to get the flour
3 8/12 - 3/12 = 3 5/12.
You would need 3 5/12 cups of flour.
Answer:
C. 
Step-by-step explanation:
(2.2)(10^6) + (4.5)(10^4) = 2245000
Simplify to match answer choices.
<span>
–1, 2.5, –6.25, 15.625, ...
r=-2.5
------------------------------
</span>
<span>
8, 0.8, 0.08, 0.008, ...
r=0.1
---------------------------
</span>
