Answer:
14
Step-by-step explanation:
we can use sin(30⁰) to solve this and the units will be 14
To solve this problem you might have to use this formula y=a(1+r)^t A=amount of money you already have 1= a set number R= rate T= time YOUR GIVENS ARE: A=4000 R= 3.5% (0.035) decimals T= 3 years NOW lets plug IN everything in the FORMULA y=4000(1+.035)^3= $4434.87. NOW lets subtract 4000-4434=434. She earned $434 of simple interest.
Answer:
1)
.
2) 
hence, answer is 7/12.
3) We have to divide £72 in the ratio 2:3:1
the total of the ratio is=2+3+1=6
so on dividing 72 into 6 parts we have 72/6=12
First '2' parts=2×12=24
second '3' part=3×12=36
last '1' part=1×12=12
so dividing £72 in the ratio 2:3:1 is: £24,£36 and £12
4) 39 people out of 65 have blonde hair.
Number of people who do not have blonde hair=65-39=26
percentage people who do not have blonde hair is given by:

Hence, percentage people who do not have blonde hair is 40%
5) 20% of 90= (20/100)×90
=18
Hence, 20% of 90 is 18.
6) Factorise

7) Expand

8)
.
9)

10)

11) x= -4 y=3
and z=4 x-y^3
z=4×(-4)-3^3
z= -43
12) 
13) 
Hence x= -2
14) 5,10,15,20,....
Hence, nth term is 5n.
15) (63×128)/32.9=245.106.
16) 938×21=19698.
Answer:
Step-by-step explanation:
S 50 m = 0.050 km
A ∵ 1 m = 100 cm
∴ 5 m = 500 cm
K ∵ 1000 dm = 0.1 km
∴ 1 dm =
km
∴ 5246 dm =
km
= 0.5246 km
P ∵ 1 m = 1000 mm
∴ 5.246 m = 5246 mm
P ∵ 1 hg = 1000 dg
∴ 3.7 hg = 3700 dg
U ∵ 1 g = 100 cg
∴ 0.37 g = 37 cg
E ∵ 1 kg = 1000 g
∴ 370 kg = 370,000 g