Answer:
Temperature dropped by 28°C in two hours
Step-by-step explanation:
<u>Initial measurement:</u>
<u>Measurement 2 hours later:</u>
<u>The difference:</u>
Temperature dropped by 28°C in two hours
Answer:
4 times 3 is 12 and 12-17 is -5.
Step-by-step explanation:
Answer:
c) if x=2, then 4x=8
Step-by-step explanation:
Answer:
m = x+y-z
Step-by-step explanation:
Given the expression.
(a^x a ^y) ÷ a^z = a^m
We are to express m in terms of x, y and z.
Using the multiplicative law of indices, the expression becomes:
a^{x+y} ÷ a^z = a^m
Applying the division rule in indices
a^{x+y} ÷ a^z = a^{x+y-z}
The equation becomes
a^{x+y-z} = a^m
Cancel out the base and equate the powers as shown:
x+y-z = m
Hence the expression of m in terms of x, y and z is m = x+y-z
Triangles are congruent when they have exactly the same three sides and exactly the same three angles.
The diagram shows two pairs of congruent triangle:
- triangle C is congruent to triangle E (have exactly the same three sides and exactly the same three angles);
- triangle D is congruent tot triangle F (have exactly the same three sides and exactly the same three angles).
Triangles A and B apears not to be congruent to any others triangles.
