Step-by-step explanation:
You can use PEMDAS to solve this problem from left to right.
First, do 15 ÷ 3 to get 5.
Next, do 2 x 10 to get 20.
Lastly, add 5 and 20 to get 25.
<u>15 ÷ 3</u> + 2 x 10
5 + <u>2 x 10</u>
<u>5 + 20</u>
25
Answer:
1 2/8 inches
Step-by-step explanation:
smallest = 2/8
largest = 1 4/8
difference = 1 2/8
The longest side in the figure measures 14 cm.
the side that is parallel to this side measures 9 cm.
if you are confused on how to look at this problem, look at it this way...
if we take away the side that measures 6 cm, we also need to take away 6 cm from the 10 cm side. if we do this, we end up with a 14 cm side and a 9 cm side with a missing (x) cm which we would add to the 9 cm side. look at it this way, if we put the 9 cm side and the (?) side on top of each other, it looks equal to the 14 cm side.
to solve for the length (in cm) of the missing side, I took 14 cm and subtracted 9 cm from it. when I did this, I got an answer of 5 cm. in conclusion, the missing side (?) is 5 cm.
the answers to the other two problems in your picture are:
5 cm
25 cm^2
125 cm^3
I hope this helps! :) let me know if you need help with anything else!! :D
Answer: 10
Step-by-step explanation:
a 30° - 60° - 90° triangle has a side ratio of 1:√3: 2, meaning the side length across from the 30° is 1, the side length across from 60° is √3, and the side length across from 90° is 2
if you multiple the 1 * 5 = 5 (the 5 side length in the diagram), then also multiple (5 * √3 = 5√3) and (2 * 5 = 10)
since you're looking for the hypotenuse (the length across the 90°), the answer would be 10 (2 * 5 = 10)
*this method can work for any 30° - 60° - 90° triangle
you can also use trig:
sin (30°) = 
(now just solve for x)
x * sin (30°) = 5
x = 
x = 
( because sin (30°) = 1/2 )
x = 5 * 
= 10
*either method works!
