:) Brainliest pls?
Answer:
z = 3/8
Step-by-step explanation:
(1/4)^(3z-1) = (64^(z-2)) * (16^(z+2))
The work is too much. I don't have a camera to take a photo of the paper.
z = 3/8
<span>8 Pamela is shopping for bottled water at the supermarket. Which is the best buy?
A 1 2-liter bottle for $0.89
1 liter = .89 /2 = $0.445
B 3 1-liter bottles for $1.50
</span> 1 liter = $1.50/3 = $0.50<span>
C 24 0.5-liter bottles for $5.25
</span>1 liter = 5.25 / 12 = $0.4375<span>
D 36 0.25-liter bottles for $4.75
</span>1 liter = $4.75 / 9 = $0.53
answer best buy is C 24 0.5-liter bottles for $5.25
<span>
9 Stuart is buying a pair of jeans that regularly cost
$40. They are on sale for 20% off. If the tax rate
is 8%, what is the sale price of the jeans including
tax?
$40 x 0.80 = $32
$32 x (1.08) = $34.56
answer is
B $34.56
10 Tamika works in a shoe store and is paid a 12%
commission on her sales. In January her sales total
was $3740. To the nearest dollar, how much did
Tamika earn in commission for January?
$3740 x 0.12 = $448.80 = &449
answer is
B $449
</span>
sin(x+y)=sin(x)cos(y)-cos(x)sin(y)
also, remember pythagorean rule, 
given that sin(Θ)=4/5 and cos(x)=-5/13
find sin(x) and cos(Θ)
sin(x)
cos(x)=-5/13
using pythagorean identity
(sin(x))^2+(-5/13)^2=1
sin(x)=+/- 12/13
in the 2nd quadrant, sin is positve so sin(x)=12/13
cos(Θ)
sin(Θ)=4/5
using pythagrean identity
(4/5)^2+(cos(Θ))^2=1
cos(Θ)=+/-3/5
in 1st quadrant, cos is positive
cos(Θ)=3/5
so sin(Θ+x)=sin(Θ)cos(x)+cos(Θ)sin(x)
sin(Θ+x)=(4/5)(-5/13)+(3/5)(12/13)
sin(Θ+x)=16/65
answer is 1st option
Answer:
Her mistake was to change the inequality sign from ≥ to ≤.
The sign only changes when you multiply or divide both sides of an inequality by a negative number.
