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Tasya [4]
3 years ago
9

Which function is the inverse of f(x) = 2x + 3?

Mathematics
1 answer:
Gnesinka [82]3 years ago
6 0

Answer:

f(x inv)=-1/2x-3

Step-by-step explanation:

You pretty much just have to flip all the numbers to fractions and all the positives to negatives.

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What is the value of x?
GenaCL600 [577]

Answer:

<h2>x = 3</h2>

Step-by-step explanation:

Look at the picture.

We have the triangles 45° - 45° - 90° and 30° - 60° - 90°.

The sides of those triangles are in ratio:

1 : 1 : √2 and 1 : √3 : 2

Therefore

If AC = 6√2 then AB = BC = 6

If BC = 6 then x = 6 : 2 = 3

7 0
4 years ago
Which equation shows y= -1/2x+4 is in standard form?
vitfil [10]

The standard form:

Ax+By=C

We have:

y=-\dfrac{1}{2}x+4      <em>multiply both sides by 2</em>

2y=-x+8      <em>add x to both sides</em>

\boxed{x+2y=8}

5 0
4 years ago
Scientists have found a relationship between the temperature and the height above a distant planet's surface. , given below, is
ikadub [295]

The question is incomplete, the complete question is below:

Scientists have found a relationship between the temperature and the height above a distant planet's surface. , given below, is the temperature in Celsius at a height of kilometers above the planet's surface. The relationship is as follows: T(h) = 30.5 -2.5h.

a) Calculate T^-1(x)

b) T^-1(15)

Answer:

a) T^{-1} (x)= \frac{30.5-x}{2.5}

b) 6.2 °C

Step-by-step explanation:

a) T(h) = 30.5 - 2.5h\\2.5h = 30.5-T(h)\\h = \frac{30.5-T(h)}{2.5}\\ T^{-1} (x)= \frac{30.5-x}{2.5}

b) T^{-1} (x)= \frac{30.5-x}{2.5}\\\\T^{-1} (15)= \frac{30.5-15}{2.5}=6.2

3 0
3 years ago
What is the sum of the interior angles of a 16-sided polygon
Lynna [10]
The answer is 2520 degrees
8 0
4 years ago
What’s the answer? I don’t know how I got it wrong
likoan [24]

Answer:

C. Line PQ

Step-by-step explanation:

Tangent means touching, not crossing.

6 0
2 years ago
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