Answer:
<u>14</u>
Step-by-step explanation:
PEMDAS
Parenthesis
Exponent
Multiplication
Division
Addition
Subtraction
30 - (8x2)
- Work from the parenthesis first.
(8x2) = 16
= 30 - 16
= 14
Hope this helps!
Answer:
Step-by-step explanation:
The engineer can use a clinometer to measure the angle of elevation of the top of the tree. Let the height of the tree be represented by x, the she could determine the distance across the river, d, by applying the trigonometric function.
Tan θ = 
= 
the the distance, d = x ÷ Tan θ
Assume the angle of elevation of the top of the tree is
, and the height of the tree is 10 m, then the distance, d, across the river would be;
d = 
= 17.3190
d = 17.32 m
The sketch to the explanation is attached to this answer for more clarification.
Answer:
c=11×(450+250)-90
Mrs. Shin owes $7610
Step-by-step explanation:
use pemdas to find total amount owed
Parallel lines have the same slope but different y-intercepts.
Answer:
15
Step-by-step explanation:
Use the Pythagorean Thereom:
=
+
= 81+144
= 225
= 15
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