Answer:
9/4
Step-by-step explanation:
2 1/4 = 9/4 From mixed fraction to an improper fraction: "the numerator of the improper fraction" = "denominator" xx "the whole number" + "the numerator of the mixed fraction" The denominator remains as it is. So 2 1/4 = (4 xx 2 + 1)/4 = 9/4
Answer:
angle A is 75:the four corners are 90 degrees so 75+15 is 90 and is looks like A is the same.
angle C is 55:180-125=55
Angle D is 90-15 so think its 75?
Step-by-step explanation:
im probably wrong but maybe not?
Answer:
Step-by-step explanation:
let r be radius of inner circle.
2πr=25.12
πr=25.12/2=12.56
3.14r=25.12
r=12.56/3.14=4
outer radius R=4+4=8 mm
reqd. area=πR²-πr²=π(R²-r²)=3.14(8²-4²)=3.14(64-16)=3.14×48= 150.72 mm²
Answer:
D
Step-by-step explanation:
-d + 2 < -1
-16 + 2 < -1
-14 < -1, which is true since -14 is less than -1