Answer:
2πr is the formula to calculate
Step-by-step explanation:
Step-by-step explanation:
use the formula:
v = 30 [final velocity]
u = 10 [initial velocity]
a = 2 [acceleration]
solve for t [time]
Answer:
The total value of her stock after three days = $ 2796.3
Step-by-step explanation:
Total number of shares = 117
Total value of shares = $ 2614.95
Value of increase of one share in one day = $ 1.01
Total value increase of 117 shares in one day = 117 × 1.01 = $ 118.17
Total value increase of 117 shares on second day = 117 × 0.11 = $ 12.87
Total value increase of 117 shares on third day = 117 × 0.43 = $ 50.31
Total value of stock after three days = $ 2614.95 + $ 118.17 + $ 12.87 + $ 50.31
⇒ $ 2796.3
This is the total value of her stock after three days.
<u><em>Answer: A. -14. x=-14 and -14=x. *The answer should be the negative sign.*</em></u>
Step-by-step explanation:
subtraction property of equality is subtracting the same number from both sides of an equation does not change the equation.
switch sides of an equation.
x+19=5
subtract by 19 both sides of an equation.
x+19-19=5-19
simplify.
19-5=14
x=-14 and -14=x
Hope this helps!
Thanks!
Have a great day!
Answer:
Option D. (8, – 4)
Step-by-step explanation:
3x + 4y = 8 ..... (1)
x – y = 12.... (2)
To solve the above equation by elimination method, do the following:
Step 1:
Multiply equation 1 by the coefficient of x in equation 2 i.e 1.
Multiply equation 2 by the coefficient of x in equation 1 i.e 3. This is illustrated below:
1 × Equation 1
1 × (3x + 4y = 8)
3x + 4y = 8 ...... (3)
3 × Equation 2
3 × ( x – y = 12)
3x – 3y = 36......(4)
Step 2:
Subtract equation 3 from equation 4. This is illustrated below:
. 3x – 3y = 36
– (3x + 4y = 8)
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯
– 7y = 28
Divide both side by the coefficient of y i.e –7
y = 28/–7
y = – 4
Step 3:
Substitute the value of y into any of the equation to obtain the value of x. In this case, we shall substitute the value of y into equation 2 as shown below:
x – y = 12
y = –4
x – (–4) = 12
x + 4 = 12
x = 12 – 4
x = 8
Therefore, the solution to the equation above is (8, – 4)
