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4 years ago

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Mathematics

1 answer:

Phantasy [73]4 years ago

8 0

Answer:

In mathematics, an inverse function (or anti-function) is a function that "reverses" another function: if the function f applied to an input x gives a result of y, then applying its inverse function g to y gives the result x, and vice versa, i.e., f(x) = y if and only if g(y) = x.

Step-by-step explanation:

google it!!

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How to solve this question

Katarina [22]

Direct variation can be written as a proportion. Therefore, we can write:

$\frac{8}{4}= \frac{y}{5}$
Cross multiply to get:
4y=40
Divide by 4 on both sides to get that y=10.

:)

3 0

3 years ago

I don’t understand how to do this without plugging in numbers or using calculus. Please help. I’m studying for the SAT and I onl

Svetllana [295]

Step-by-step explanation:

Recall that for a quadratic equation y = ax² + bx + c in the X-Y plane, the x-location of the vertex (i.e maximum or minimum point) is given by

x @vertex = -b/2a

in this case your quadratic equation is

h = 4 + 20t - 5t² (rearranging in the form y = ax² + bx + c )

h = - 5t² + 20t + 4

hence a= -5, b = 20 and c = 4

applying the formula for vertex

t @ vertex = -b /2a = -(20) / (2)(-5) = -20/-10 = 2

therefore t = 2

8 0

3 years ago

Angles PTQ and STR are vertical angles and congruent.

iren [92.7K]

9514 1404 393

Answer:

(a) QP and SR

Step-by-step explanation:

The congruent central angles intercept congruent arcs QP and SR. Chords of congruent arcs are congruent.

chords QP and SR are congruent

4 0

3 years ago

What is equivalent to the expression 4 / -3 to the square root of 64

satela [25.4K]

$\sqrt{a}=b\iff b^2=a\ for\ a\geq0\ and\ b\geq0\\\\\dfrac{4}{-3\sqrt{64}}=\dfrac{\not4^1}{-3(\not8_2)}=-\dfrac{1}{6}$

6 0

4 years ago

()) A 6-pack of granola bars costs $2.16. What is the unit price?<br> per bar

ra1l [238]

Answer:

$0.36

Step-by-step explanation:

$2.16 / 6 = $0.36

7 0

3 years ago