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2 years ago

What is the inverse of 2x-3?

Mathematics

1 answer:

I am Lyosha [343]2 years ago

7 0

Step-by-step explanation:

the inverse of 2x-3 is

$\frac{1}{2x - 3}$

if this helped pls give brainliest

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Find the distance between each pair of points. (-5, -3) and (-5, -6)

Aloiza [94]

Answer:

• Formular for length:

$length = \sqrt{ {(x _{1} - x _{2}) }^{2} + {(y_{1} - y_{2})}^{2} }$

• from points given, x1 is -5, x2 is -5, y1 is -3 and y2 is -6:

• substitute:

$length = \sqrt{ { \{ - 5 - ( - 5) \}}^{2} + { \{ - 3 - ( - 6) \}}^{2} } \\ \\ length = \sqrt{ {0}^{2} + {3}^{2} } \\ \\ length = \sqrt{ {3}^{2} } \\ \\ { \boxed{ \boxed{ \: \: length = 3 \: units \: \: }}}$

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3 years ago

What is the center and radius of circle with the equation? x^2+ y^2+12x-8y+39 = 0

myrzilka [38]

Answer:

Center is (-6,4) and the radius is √13

Step-by-step explanation:

4 0

3 years ago

A circle centered at the origin has a radius

Arturiano [62]

Answer:

Step-by-step explanation:

cos~θ=5/13

3 0

3 years ago

If a varies directly as b, and a = 28 when b = 7, find b when a = 5.

Reika [66]

Answer: Option B.

$b=\frac{5}{4}$

Step-by-step explanation:

If a varies directly with b then when a increases b it also increases by a factor k.

Then we can write that

$a = kb$

We know that when a = 28 then b = 7. So

$28 = k * 7$

$k=\frac{28}{7}$

$k=4$

Therefore the equation of proportionality is:

$a=4b$

So when $a=5$ then:

$5=4b\\\\b=\frac{5}{4}$

6 0

3 years ago

Read 2 more answers

Having trouble with this question.<br><br> It is not B or C

Law Incorporation [45]

Answer:

Step-by-step explanation:

If we look at the options and we pay attention to D,

Lets work this out Step By Step:

Part 1:

5/4(-2) = -2.5

-2.5 - 3 = -5.5 (Correct)

Part 2:

5/4(4) = 5

5 - 3 = 2 (Correct)

Both of these rows are correct.

Hope this helps!

3 0

3 years ago