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koban [17]
3 years ago
8

Which of the following is the inverse of y = 2/3x + 1

Mathematics
2 answers:
Vesnalui [34]3 years ago
6 0

Answer:

Y=3/2x - 3/2

Step-by-step explanation:

To find the inverse, switch the x and y in the equation. Then solve for y.

Y=2/3x+1

X=2/3y+1

X-1=2/3y

3/2(x-1)=y

3/2x-3/2=y

DochEvi [55]3 years ago
4 0

Answer:

x = \frac{3}{2}\cdot y - \frac{3}{2}

Step-by-step explanation:

The inverse of the linear function is found by algebraic manipulation:

y = \frac{2}{3}\cdot x + 1

y - 1 = \frac{2}{3}\cdot x

\frac{3}{2}\cdot (y-1) = x

x = \frac{3}{2}\cdot (y-1)

x = \frac{3}{2}\cdot y - \frac{3}{2}

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What value of x makes this equation true? x/3 −6=10
Setler [38]

Answer:

48

Step-by-step explanation:

x/3 - 6 = 10

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x/3=16

16*3=48

5 0
3 years ago
Given that <br> y<br> = 10 cm and <br> θ<br> = 55°, work out <br> x<br> rounded to 1 DP.
ElenaW [278]

Answer:

x=8.2

Step-by-step explanation:

First, figure out which trig function you are going to use.

In this problem you are dealing with the opposite side to the angle and the hypotenuse, and if you remember SOH CAH TOA, this requires sine.

sin (55) =opposite/hypotenuse

sin (55) =x/10

multiply both sides by 10 to get 10 * sin (55) = x

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2 years ago
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Valentin [98]

Answer:

x ≈ 1.4

Step-by-step explanation:

Using the sine ratio in the right triangle

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1.8 × sin50° = x , then

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7 0
3 years ago
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faltersainse [42]
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exis [7]

Answer:

\large\boxed{B.\ f(x)=4^x}

Step-by-step explanation:

Exponential function f(x)=(a)^x is

increasing if a > 1\to a\in(1,\ \infty)

decreasing if 0 < a < 1\to a\in(0,\ 1)

A.\ f(x)=\left(\dfrac{1}{4}\right)^x\to a=\dfrac{1}{4}\in(0,\ 1)\to\text{decreasing}\\\\B.\ f(x)=4^x\to a=4\in(1,\ \infty)\to\text{increasing}\\\\C.\ f(x)=(0.4)^x\to a=0.4\in(0,\ 1)\to\text{decreasing}\\\\D.\ f(x)=\left(\dfrac{1}{2}\right)^x\to a=\dfrac{1}{2}\in(0,\ 1)\to\text{decreasing}

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3 years ago
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