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8+8+8+8=32, the concept will catch on. write on a piece of paper all the choices and add them all up
Answer:
x = 2, P = 22 cm, A = 21 cm²
Step-by-step explanation:
The 2 legs of the triangle are congruent , then
6x - 4 = 8 ( add 4 to both sides )
6x = 12 ( divide both sides by 6 )
x = 2
perimeter = 8 + 8 + 6 = 22 cm
Area = 
bh ( b is the base and h the perpendicular height )
Here b = 6 and h = 7 , then
A = × 6 × 7 = 3 × 7 = 21 cm²
The answer is 78%
text me if i'm wrong
Answer:
$9.638.3; 21.67 years
Step-by-step explanation:
P=principal=$7,000
r=rate=6.5%=0.065
n=2(semiannually)
t=5 years
A=p(1+r/n)^nt
=$7,000(1+0.065/2)^2×5
=$7,000(1+0.0325)^10
=$7,000(1.0325)^10
=$7,000(1.3769)
=$9,638.3
How long will it take for the investment to quadruple
That means 4 times
4×$7000=$28,000
A=p(1+r/n)^nt
$28,000=$7,000(1+0.065/2)^2t
$28,000=$7,000(1+0.0325)^2t
$28,000=$7,000(1.0325)^2t
Divide both sides by $7,000
4=(1.0325)^2t
Take the log10 of both sides
log4=2t × log1.0325
0.60206=2t×0.01389
0.60206=t×2×0.01389
0.60206=0.02778t
t=0.60206/0.02778
t=21.67 years
