THE solution is D.
you have 7 and 3 so commom multiple is 21
y-3*7=7
y-21=7
y=21+7
y=28
42-30= 12, 12x42=504s until they change at the same time. 504-10= 494s from 10s ago
Question:
Select the three expressions that are equivalent to :
a:
b:
c:
d:
Answer:
a:
c:
d:
Step-by-step explanation:
Given
:
Required
Find equivalent expressions
<em>To solve this question; we'll simplify options a to do, one after the other</em>
a:
From laws of indices;
This implies that;
From laws of indices;
This implies that
Hence, is equivalent to
b.
From laws of indices;
This implies that
From laws of indices;
This implies that
Hence; is not equivalent to
c.
From laws of indices;
This implies that
Hence, is equivalent to
d.
From laws of indices;
This implies that
From laws of indices;
This implies that
Hence, is equivalent to
Answer:
$21.00
Step-by-step explanation:
1(x+3)+x=45
x+3+x=45
x+x=42
2x=42
x=21
Answer:
Step-by-step explanation:
See attachment for question illustration
From the attachment, we have:
Required
Solve d
First, we need to calculate <C
--- angles in a triangle
Make <C the subject
Next, we apply Sine's law to solve for d
In this case:
Make d the subject
<em>Hence, the base of the lake is approximately 340.7m</em>