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3 years ago

Which statements are true about the graph?

Mathematics

2 answers:

lianna [129]3 years ago

8 0

Answer: The graph shows exponential decay

The graph shows y = 2^x reflected over the y-axis

Step-by-step explanation:

When 0<b<1 , the graph shows exponential decay. In this case, b was equal to 1/2 as shown by the graph alongside the question. Therefore, the graph shows exponential decay.

The graph of y = 2^x would show a reflection of y = 1/2 ^x over the y-axis, therefore the graph shows y = 2^x reflected over the y-axis.

vfiekz [6]3 years ago

6 0

Answer:

B. The graph shows exponential decay.

D. The graph shows y = 2x reflected over the y-axis.

Step-by-step explanation:

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Can see please help me with the 2 equations (in the picture) find x

Lunna [17]

Answer:

1. x = 2

2. couldn't figure out. sorry

Step-by-step explanation:

8 0

3 years ago

An airplane is flying at a speed of 500 mi/h at an altitude of one mile. The plane passes directly above a radar station at time

d1i1m1o1n [39]

Answer:

a) $s=\sqrt{1+d^2}$

b)d(t)=500t

c) $s(t) =\sqrt{1+250000t^2}$

Step-by-step explanation:

d = Horizontal distance

s = the distance between the plane and the radar station

The horizontal distance (d), the one mile altitude, and s form a right triangle.

So, use Pythagoras theorem

$Hypotenuse^2=Perpendicular^2+Base^2$

$s^2=1^2+d^2$

a) $s=\sqrt{1+d^2}$

(b) Express d as a function of the time t (in hours) that the plane has flown.

$distance = speed \times time$

d(t)=500t

$s(t) =\sqrt{1+d^2}$

using b

$s(t) =\sqrt{1+(500t)^2}\\s(t) =\sqrt{1+250000t^2}$

6 0

3 years ago

Solve the equation. Check for extraneous solutions. <img src="https://tex.z-dn.net/?f=2%7C7-7x%7C%3D2x%2B4%20" id="TexFo

lakkis [162]

2(7-7x) = 2x + 4
14 - 14x = 2x +4
16x = 10
x = 10/16
x = 0.625

2[-(7-7x)] = 2x + 4
-14 +14x = 2x + 4
12x = 18
x = 18/12
x = 1.5

answer:
solutions x = 0.625 and x = 1.5

4 0

3 years ago

Read 2 more answers

PLEASE HELP

VladimirAG [237]

Answer:

just search up Mathaway in your browser you will get your answer and a step by step explanation!

Step-by-step explanation:

7 0

3 years ago

Solve the system of equations. −4x+3y=−2 y=x−1 x- y-

Kobotan [32]

Answer: x= -1

y= -2

Step-by-step explanation:

-4x+3y= -2

y=x-1

-------------------

-4x+3(x-1)= -2

-4x+3x-3= -2

-x=1

x= -1

y=-1-1

y=-2

6 0

4 years ago

Read 2 more answers