Answer:
A=42.25
Step-by-step explanation:
6.5^2
Answer:
20%
Step-by-step explanation:
If it requires you to pay 36 monthly instalments, then the fastest time you can pay it off is 3 years.
So, we find how much money is paid in a year in such a way = 500 x 12 = 6000
If this amount is paid for 3 years, you end up paying = 6000 x 3 = 18000
This is 18000-10000 = 8000 more than what was leant to you.
Now, to find the interest the intrested rate, we use the formula for simple interest:
(P x R x T)divided by 100
P = principle amount
R = rate
T = time.
So, 10000 x 3 x R divided by 100 = 6000
Rearrange and solve to find
R = 20%
Hope this helps
Answer: 16) Vertex = (3, 39)
17) Vertex = (-2, -17)
<u>Step-by-step explanation:</u>
When given the standard form of a quadratic equation: ax² + bx + c
use the Axis of Symmetry formula to find the x-value of the vertex. x = -b/(2a)
Then plug the x-value into the given equation to find the y-value.
16) y = -x² + 6x + 30
↓ ↓ ↓
a= -1 b=6 c=30
Max: y = -(3)² + 6(3) + 30
= -9 + 18 + 30
= -9 + 48
= 39
Vertex: (3, 39)
***************************************************************************************
17) y = 3x² + 12x - 5
↓ ↓ ↓
a= 3 b=12 c= -5
Min: y = 3(-2)² + 12(-2) - 5
= 3(4) - 24 - 5
= 12 - 29
= -17
Vertex: (-2, -17)
Answer:
X=(Y*2) // Y=(X/2)
Step-by-step explanation:
Xylophones = "X"
Yodelers = "Y"
First Equation: X=(Y*2) essentially just explains that the xylophones is equal to the yodelers times 2
Second Equation: Basically the same thing, but rather than multiplying the yodelers by two, it divides the xylophones in half.
Answer:
direct relation between distance travelled by a train and its speed, when time is constant.
Step-by-step explanation:
We know that the speed of an object is the total distance covered divided by total time taken. Mathematically, it is given by :
Where
d is distance
t is time taken
It can be seen that relation between the distance and the speed is direction. Hence the correct option is (a) "direct".