Answer:
12.4cm
Step-by-step explanation:
Circumference of a circle: where d is the diameter.
Therefore circumference of a quarter circle (just the arc):
Arc AB = since Diameter = 2 times of Radius
Arc AB = = 12.4cm (rounded to the nearest tenth)
Answer:
1.03904 x 10^3
Step-by-step explanation:
multiply to get
10.3904 x 10 ^-7+9
10.3904 x 10^2
write it in scientific notation
1.03904 x 10^3
which is also equal to 1039.04
Answer:
5,400,000
Step-by-step explanation:
n order to round numbers you must understand the rules for rounds. When looking at a number and deciding whether or not to round up or down, you must look at the number to the right of the target number. Numbers which are four or less round down. Numbers five or more round up to the next value. In the number 5,370,288 the target number is in the hundred thousands place, it is three. Right of the three is a seven. Following the rule, that means we must round up, changing the 3 to a four and all numbers following it to the right must be made zeroes. Your final answer will be 5,400,000.
Y = a number
"is" means "equal to"
Equation:
Y - 8 = 94
Solving for Y:
Y - 8 = 94
Add 8 to both sides
Y = 102
Answer: Y = 102
Hope this helps!!
Answer:
written below for problem #2
Step-by-step explanation:
a. ratio is 12:40 since they're are 12 non fiction and 40 graphic novels
b. 40:12 (same reasoning as part a)
c. 6:40 for the ratio of science fiction to graphic novel, 12:6 for the ration of non fiction to science fiction, x:6 for the ratio of the unknown amount of fiction books to the science fiction books. (x is just there as a variable so it just represents fiction books)