Answer:
Speed = 10.42 m/secs
Step-by-step explanation:
We have been given with:-
Distance = 100m
Time taken = 9
secs
1) First, we need to convert the mixed number 9
to an improper fraction.
<u>Method to convert a mixed number to an improper fraction</u>
<u>
</u>
Applying the above formula, we get
9
= ![\frac{5*9+3}{5}](https://tex.z-dn.net/?f=%5Cfrac%7B5%2A9%2B3%7D%7B5%7D)
= ![\frac{45+3}{5}](https://tex.z-dn.net/?f=%5Cfrac%7B45%2B3%7D%7B5%7D)
= ![\frac{48}{5}](https://tex.z-dn.net/?f=%5Cfrac%7B48%7D%7B5%7D)
2) Now we need to convert
into a decimal by dividing 48 by 5.
We get time taken as 9.6 secs
3) We need to find the speed using the below formula:-
Speed = ![\frac{Distance}{Time taken}](https://tex.z-dn.net/?f=%5Cfrac%7BDistance%7D%7BTime%20taken%7D)
Plugging the values of Distance and Time taken into the formula, we get
Speed = ![\frac{100}{9.6}](https://tex.z-dn.net/?f=%5Cfrac%7B100%7D%7B9.6%7D)
= 10.416 m/secs
4) Upon rounding it to the nearest hundredth, we get
Speed = 10.42 m/secs
1.
Since ABCD is a rectangle, then
angleABE = 90 degrees
angle ABE + angle BEA + 41 = 180
Substitute the known and solve for angle BEA
angle BEA + 41 = 90
angle BEA = 49 degrees
But,
x + angleBEA + 61 = 180 (angles in a straight line)
x = 180 - 61 - 49
x = 70 degrees
2.
triangle XYZ is equilateral, meaning all angles in it are the same, each 60 degrees.
Therefore,
Angle YZX = 60
But Angle YZX = x + 32 (exterior angles equal to the sum of the two opposite interior angles)
60 = x + 32
Therefore,
x = 28 degrees
3.
Angle QPR = Angle QRP (equal oppo sides, equal opposite angles)
Therefore, 2angleQRP + 64 = 180 (angle sum of a triangle)
Angle QRP = 58 degrees
But angle QRP = x + 35 (exterior angles equal to the sum of the two opposite interior angles)
58 = x + 35
x = 23 degrees
C because I believe it’s the only one that comes out to positive 3
I hope this helps!!
20/2.54=7.87401575
7.87401575/12
0.65616798 feet
Answer:
B
Step-by-step explanation:
Multiply 3.25*4+3.75= 16.75