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2 years ago

Number 8 pleaaaaaaseeeeeeeeeeeeeee

Mathematics

2 answers:

ivanzaharov [21]2 years ago

8 0

A. 20
B. 1/5
!!!!!!!!!

n200080 [17]2 years ago

8 0

Answer:

its b [what is the ratio ] hope this helps

Step-by-step explanation:

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Find the median of the following numbers:<br> 26, 18, 28, 26, 14, 20

Lady_Fox [76]

Answer:

Step-by-step explanation:

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3 years ago

The measure of an angle is 140°. What is the measure of its supplementary angle

Darina [25.2K]

Answer:

40 degrees

Step-by-step explanation:

Supplementary angles are angles in which their measures combined add up to 180 degrees. So we can set up an equation:

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3 years ago

Read 2 more answers

Help me answer this question please

Stella [2.4K]

ANSWER

${f}^{ - 1} =\pm \sqrt{x + 1}$

EXPLANATION

The given function is

$f(x) = {x}^{2} - 1$

Let

$y = {x}^{2} - 1$

Interchange x and y to get:

$x= {y}^{2} - 1$

Solve for y,

$x + 1 = {y}^{2}$

Take square root of both sides to get,

$\pm \sqrt{x + 1} = y$

This is the same as:

$y = \pm \sqrt{x + 1}$

Therefore the inverse is

${f}^{ - 1} =\pm \sqrt{x + 1}$

3 0

2 years ago

Please help with this

GalinKa [24]

The answer is 20

Reason: so the W is 4 and the L is 6 so you do 4+4=8 then you do 6+6=12 then you add the two together and get 20

7 0

2 years ago

Helpppppppppppppppppp!

julia-pushkina [17]

Remember that the radicand (the area under the root sign) must be positive or zero for a radical with an even index (like the square root or fourth root, for example). This is because two numbers squared or to the fourth power, etc. cannot be negative, so there are no real solutions when the radicand is negative. We must restrict the domain of the square-root function.

If the domain has already been restricted to $x \geq -11$ , we can work backwards to add 11 to both sides. We see that $x+11$ must be under the radicand, so the answer is A.

7 0

3 years ago