the answer is A. the X is negative, Y positive
Answer:
Step-by-step explanation:
The initial price of the swimsuit that Karla purchased at Amazon was 75.5
she use the coupon code to receive a 25% discount. This means that the value if the discount would be
25/100 × 75.5 = 0.25× 75.5 = 18.86
Therefore, the discounted price of the swimsuit is 75.5 - 18.875 = 56.625
The website applied a 10% service fee for the discount price. This means that the value of the service fee would be
10/100 × 56.625 = 0.1 × 56.625 = 5.6625.
The amount that Karla pays for the swimsuit would be
56.625 + 5.6625 = 62.2875
The difference between the original price and the price that Karla paid would be 75.5 - 62.2875 = 13.2125
The percentage by which the amount that Karla paid was lesser than the original price would be
13.2125/ 75.5 × 100 = 17.5%
Answer: a semicircle is half the perimeter (or circumference) of its full circle, so the full circle here has a circumference of 20.56
Use that to figure out the length of the radius: Circumference divided by 2(pi) will give you the radius.
Once you have the radius, use the formula for Area of a Circle: A = pi * radius2.
Once you have the area of the circle, divide that by 2 to get the area of the semicircle.
π=3.14 C=3.14 x 8cm C=25.1cm Divide by 2 for the semicircle 12.5 Add the diameter (8cm) 12.55+8=20.5
Answer:
c. P= 1/6; a=8
Step-by-step explanation:
we know that
The equation of a exponential growth function is given by
where
P is the initial value or y-intercept (this vale cannot be equal to zero)
a is the base of the exponential function ( in a exponential growth function the value of a is greater than 1)
<u><em>Verify each case</em></u>
case A) P=6; a = 1/8
Is not a exponential growth function, because a < 1 (is a decay exponential function)
case B) P=6; a = 1
Is not a exponential function
case C) P= 1/6; a=8
Is a exponential growth function, because a > 1 and P is not zero
case D) P=1/6; a = 1/8
Is not a exponential growth function, because a < 1 (is a decay exponential function)
A(n,s)=(ns^2)/(4tan(180/n)), n=number of sides, s=side length
A(8,4.6)=(8*4.6^2)/(4tan22.5)
A(8,4.6)=42.32/tan22.5 m (exact)
A(8, 4.6)≈102.17 m^2 (to nearest hundredth of a square meter)