Steve wants to buy 40 markers for school. Markers come in packages of 10. How many packages of markers will Steve need to buy?
2 answers:
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Answer:
Step-by-step explanation:
we have
Let
y=f(x)
Exchange the variables x for y and y for x
Isolate the variable y
square root both sides
Let
-----> inverse function
Answer:
∠ KAL = 90° (Proved)
Step-by-step explanation:
See the attached diagram.
As KLMN is a parallelogram, so ∠K + ∠ L = 180°
⇒ ............ (1)
Now, given that, and
So, ∠ AKL + ∠ ALK = 90° {From equation (1)}
Now, from Δ KAL, ∠ AKL + ∠ ALK + ∠ KAL = 180°
⇒ 90° + ∠ KAL = 180°
⇒ ∠ KAL = 90° (Proved)
