3 years ago

Giving 25 points for this! help ASAP please.

Mathematics

1 answer:

sweet [91]3 years ago

5 0

Answer:

Step-by-step explanation:

You might be interested in

WILL GIVE BRAINLIST PLEASE HELP

Harlamova29_29 [7]

Good evening ,

______

Answer:

12×11×10×9×8×7= 665 280 ways

___________________

Step-by-step explanation:

The first inquiry has 12 ways

The 2nd inquiry has 11 ways

The 3rd inquiry has 10 ways

The 4th inquiry has 9 ways

The 5th inquiry has 8 ways

The 6th inquiry has 7 ways

8 0

2 years ago

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

2 years ago

Can someone pls help need it ASAP and can you pls explain in full detail how to do it

GenaCL600 [577]

Answer:

x= 1 , y=4

Step-by-step explanation:

x-y= -3 => Equation 1

x+5y= 21 => Equation 2

Substitution Method:

Substitute Equation 1=>

x=y-3 <= Equation 3

Put x=y-3 in Equation 2:

x+5y=21

( y-3)+5y=21

y-3+5y=21

6y-3=21

6y=21+3

6y=24

y=24÷6

y=4

Put y=4 in Equation 1:

x-y= -3

x-4=-3

x=4-3

x=1

Hope this helps :)

8 0

2 years ago

Read 2 more answers

A building that is 100 ft tall casts a shadow that makes a 30 degree angle with the ground. Approximately how long, in feet, is

Naddik [55]

The awnser is 130 ft.

8 0

2 years ago

Read 2 more answers

Please help me asap i will mark branlist please explain

Tems11 [23]

It would be the first one (x,-y) because say for example you take the point of v1 (4,-1) and reflect across x axis you get (4,1) for v

7 0

2 years ago