Answer:
a(b(5)) = 76
Step-by-step explanation:
Evaluate b(5) then substitute the value obtained into a(x)
b(5) = 5² = 25, then
a(25) = 3(25) + 1 = 75 + 1 = 76
Answer: The solution is 
Step-by-step explanation:
since we have given that

we need to solve it using area models:
As we know that "In fractions, division is changed into multiplication by reciprocating the next term to make it possible to solve":
So, It turns into model of area "Area of rectangle "

Now, verifying by using numerical operations only.

Hence, verified.
Answer:
y=1/10x+9
Step-by-step explanation:
i think, sorry if its wrong
Answer:
£5200
Step-by-step explanation:
First, converting R percent to r a decimal
r = R/100 = 2%/100 = 0.02 per year,
then, solving our equation
I = 5000 × 0.02 × 2 = 200
I = £ 200.00
The simple interest accumulated
on a principal of £ 5,000.00
at a rate of 2% per year
for 2 years is £ 200.00.
Tan² B = 4
(tan B)² = 4
tan B = ±2
Basic Angle
= tan^-1 2
= 63.4° (1dp)
B = 63.4°, 116.6°, 243.2°, 296.6°
Assuming you're actually supposed to present your answers in 0dp, then all answers apply.