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3 years ago

Which ordered pair could be removed from the graph to create a set of ordered pairs that represents a function?

Mathematics

1 answer:

ozzi3 years ago

3 0

I’m %80 sure your answer is (2,-3)

hope this helped

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The power generated by an electrical circuit (in watts) as a function of its current ccc (in amperes) is modeled by: P(c)=-20(c-

alekssr [168]

Answer:

The current that produces maximum power is 3A

Step-by-step explanation:

Given

$P(c) = 20(c - 3)^2$

Required [Missing from the question]

The current that produces maximum power

First, we represent the function in standard form

$P(c) = 20(c - 3)^2$

$P(c) = 20(c - 3)(c - 3)$

Open bracket

$P(c) = 20(c^2 -6c+ 9)$

$P(c) = 20c^2 -120c+ 180$

The maximum value of c is:

$Max(c) = \frac{-b}{2a}$

Where:

$f(x) = ax^2 + b^2 + c$

By comparison: $P(c) = 20c^2 -120c+ 180$

$a = 20$

$b = -120$

$c = 180$

So, we have:

$Max(c) = \frac{-b}{2a}$

$Max(c) = \frac{-(-120)}{2 * 20}$

$Max(c) = \frac{120}{40}$

$Max(c) = 3$

5 0

3 years ago

Question 1. Enter the ratio equivalent to sin(B)

Deffense [45]

Answer:

The three questions about the given triangle has been answered below.

Step-by-step explanation:

We are given a right angled triangle whose sides are of length 20, 21 and 29.

(1) sin(B) = $\frac{side opposite to B}{hypotenuse}$

= $\frac{21}{29}$

= 0.72

(2) sin(A) = $\frac{20}{29}$

sin(A) = 0.689

∠CAB = $sin^{-1}(0.689)$

∠CAB = 43.551°

(3) We suppose that cosA < sinA and we haveto find which all angles will satisfy this condition.For this the angle A should be greater than 45°.

From the given options the angles that satisfy this are 55 , 66 and 75.

45 is not included as then sinA = cosA and that condition is not there.

8 0

3 years ago

Find the y intercept of the line on the graph

OlgaM077 [116]

Answer:

Step-by-step explanation:

y-intercept is -4

4 0

3 years ago

What is the difference in mm between 3.9 cm and 4.6 cm

omeli [17]

4.6 - 3.9= .7cm which is 7mm

3 0

3 years ago

Read 2 more answers

A shirt regularly priced at $36.00 was on sale for 25% off.

VLD [36.1K]

Answer:

Step-by-step explanation:

find out the 35% OF 36.00

36x35%=9

36-9=27

3 0

3 years ago