Maya has two coupons for a phone.

How doo you know if its a.m or p.m but im like in first grade dont laugh

Luba_88 [7]

Answer:this is the answer

Step-by-step explanation:

Two 12-Hour Periods The 12-hour system divides the 24 hours of a day into two periods lasting 12 hours each. The first 12-hour period is designated as am. It runs from midnight to noon. The second period, marked pm, covers the 12 hours from noon to midnight.

4 0

3 years ago

A manufacturer wants to make open tin boxes from pieces of tin with dimensions 8 in. by 15 in. by cutting equal squares from the

Stells [14]

Answer:

$\frac{5}{3}$ in

Step-by-step explanation:

Let x be the side of square.

Length of box=8-2x

Width of box=15-2x

Height of box=x

Volume of box= $L\times B\times H$

Substitute the values then we get

Volume of box=V(x)= $(8-2x)(15-2x)x=(15x-2x^2)(8-2x)$

$V(x)=120x-30x^2-16x^2+4x^3$

$V(x)=4x^3-46x^2+120x$

Differentiate w.r.t x

$V'(x)=12x^2-92x+120$

$V'(x)=0$

$12x^2-92x+120=0$

$3x^2-23x+30=0$

$3x^2-18x-5x+30=0$

$3x(x-6)-5(x-6)=0$

$(x-6)(3x-5)=0$

$x-6=0\implies x=6$

$3x-5=0\implies x=\frac{5}{3}$

Again differentiate w.r.t x

$V''(x)=24x-92$

Substitute x=6

$V''(6)=24(6)-92=52>0$

Substitute x=5/3

$V''(5/3)=24(5/3)-92=-52$

Hence, the volume is maximum at x= $\frac{5}{3}$

Therefore, the side of the square , $x=\frac{5}{3}$ in cutout that gives the box the largest possible volume.

5 0

3 years ago

A quantum object whose state is given by is sent through a Stern-Gerlach device with the magnetic field oriented in the y-direct

Ahat [919]

Answer:

The probability that the object will emerge from the + side of this device is 1/2

Step-by-step explanation:

Orienting the magnetic field in a Stern-Gerlach device in some direction(y - direction) perpendicular to the direction of motion of the atoms in the beam, the atoms will emerge in two possible beams, corresponding to ±(1/2)h. The positive sign is usually referred to as spin up in the direction, the negative sign as spin down in the explanation, the separation has always been in the y direction. There can be some other cases where magnetic field may be orientated in x-direction or z-direction.

7 0

3 years ago

Im stuck on this problem. Please explain how you got your answer

klemol [59]

The function $y=0.3^x$ represents exponential growth with the initial value equal to 1, the decay factor equal to 0.3, and the rate equal to 0.7.

<h3>Population Growth Equation</h3>

The formula for the Population Growth Equation is:

$P_f=P_o*(1+\frac{R}{100}) ^t$

Pf= future population

Po=initial population

r=growth rate

t= time (years)

growth or decay factor = (1 ±r)

When 1+R > 1, the equation represents growth, while 1+R < 1 the equation represents decay.

The question gives:

$y=0.3^x$ , then

Pf=y

Po= 1

$(1+\frac{R}{100}) =0.3$ , thus

$(100+R}) =30\\ \\ R=-100+30\\ \\ R=-70$

r= -70%= -0.7

decay factor= (1-0.7)=0.3

Therefore,

1+R will be = 1+(-0.7)=1 - 0.7 =0.3

When 1+R >1, the function represents exponential growth.

Read more about the exponential function here:

brainly.com/question/8935549

4 0

3 years ago

Please help me find x,y,z

lara31 [8.8K]

Answer:

z= 20.78

x=16.97

y=12.00

Step-by-step explanation:

To find z , we need cosine function

$Cos 30= \frac{z}{24} \\z= 24 cos 30 = 20.78\\\\$

To find x and y , we need to find the height of the left triangle , i.e.

24 sin 30 = 12

then cos 45 = 12 /x

x= 12/ cos 45 = 16.97

sin 45 = y/x = y/ 16.97

y= 16.97 sin 45 = 12

.

hope it help

7 0

3 years ago