Answer:
(3) Diagonals are perpendicular
Step-by-step explanation:
Answer:
A. 2 4/5
Step-by-step explanation:
To find how many hours she worked for $210, you must get the amount of money she gets in 1 hour.
Because she charges $43 dollars every hour, and fines a fee of $30 flat, we must add both of the amount to get how many she earns in 1 hour.
So:
$45 + $30= $75
She earn $75 in 1 hour.
Next, divide $210 dollars that she earned for working for hour(s) to the amount of money she earned in 1 hour to find how many hours she worked.
So:
$210 ÷ $75= 2.8 hours
The answer is 2.8 hours
Because the given answers is in fraction, we must change the decimal into a fraction.
To change a decimal into a fraction, you must place the decimal over its place value.
Because 8 in the decimal 2.8 is in the tenths place, you must place it over 10
So:
2.8 into a decimal is 2 8/10
Simplify (only simplify if possible):
Divide 8 and 10 to their GCF which is 2.
So:
8 ÷ 2= 4
10 ÷ 2= 5
So the fraction and the answer is now:
2 4/5
I hope this helps! I'm sorry if it's wrong and too complicated.
Answer:
160.14m²
Step-by-step explanation:
Area of circle = πr² = 3.14r²
Area of sidewalk = area of outer circle - area of inner circle
a = 3.14 * 10² - 3.14 * 7²
a = 3.14 * 100 - 3.14 * 49
a = 314 - 153.86
a = 160.14
160.14m²
The answer is: " 3,723,875 cm³ " .
_________________________________
Explanation:
_________________________________
Note the exact conversion:
_________________________________
1m = 100 cm .
_________________________________
Convert: 1.55 m to "cm" ;
___________________________________________
1.55 m * ( 100 cm / m) = (1.55 * 100) cm = 155 cm .
___________________________________________
Now, to find the volume, in units of: " cm³ " ;
___________________________________________
(155 cm)³ = 155 cm * 155 cm * 155 cm ;
= (155 * 155 * 155) cm³ ;
= 3,723,875 cm³ .
_______________________________________________
