The mean life of a battery is 50 hours with a standard deviation of 6 hours. The

The sum of two numbers is 28the first number x is three times the second number y

Alex Ar [27]

21 and 7 (((((((*(*(

7 0

3 years ago

Arrange the equations in the correct sequence to rewrite the formula for displacement, d = vt—1/2at^2 to find a. In the formula,

Murljashka [212]

Answer:

$a = \frac{2(vt-d)}{t^{2} }$

Step-by-step explanation:

Given the formula for calculating the displacement of a body as shown below;

$d = vt - \frac{1}{2} at^{2}$

d = displacement

v = final velocity

a = acceleration

t = time

To make the acceleration a the subject of the formula, the followin steps must be taken;

Step 1: Subtract vt from both sides of the equation

$d-vt = vt-vt-\frac{1}{2}at^{2} \\ d-vt = -\frac{1}{2}at^{2}\\2(d-vt) = -at^{2}$

Step 2: Divide both sides by t²

$\frac{2(d-vt)}{t^{2} } = \frac{-at^{2} }{t^{2} } \\a = \frac{-2(d-vt)}{t^{2} }$

$a = \frac{2(vt-d)}{t^{2} }$

6 0

3 years ago

A) Patty Stacey deposits $2600 at the end of each of 5 years in an IRA. If she leaves the money that has accumulated in the IRA

ruslelena [56]

Answer:

From the question, Stacey deposits $2600 six times over a thirty year period since she makes the deposit every five years. Her amount accures by the formular. A = P(1+r/n)^nt. Where her principal P = $2,600. Rate, r =6% =0.06. Time = 30 years and the period of compounding per unit time, n = 6 years. So we have A =2, 600(1+(0.06/6))^(6*30) = 2, 600 (1 + 0.01)^(180) = 2600* 5.9958 = $15, 587. To the nearest cent we have $15, 590.

Step-by-step explanation:

:)

8 0

2 years ago

Help me with this please!!!

larisa86 [58]

Answer:15

Step-by-step explanation: since it’s 4 to3 and if you multiply 4 and 5 you get 20 so you multiply 3 and 5 to get 15. Hope it helps!

8 0

3 years ago

Determine if the function f is an exponential function. If so, identify the base. If not, why not? f(x) = 2^2x

Nookie1986 [14]

Answer:

a) This is not an exponential function because the variable is in the exponent position.

c) The base is 4 not 2.

Step-by-step explanation:

The given function is $f(x) = (2)^{2x} = 4^{x}$ ........... (1)

a) This is not an exponential function because the variable is in the exponent position.

c) The base is 4 not 2.

The general form of an exponential function is given by $f(x) = A(B)^{x}$ , where A is the initial value of the function and B is the base. (Answer)

3 0

3 years ago