Plz help on numbers 18-20 with work and answer shown plz

Answers

Answer 1

Answer: Hope this helps! If there's any question then leave a comment.

Related Questions

What is the LCD of 4x^2y and 6xy^4
HELP ASAP ILL GIVE A THANKS AND BRAINLIEST Which combined inequality has the same solution set shown in the graph of x?–3 x ≥ –1–3 ≤ x > –1
#110 points1. Which equation has a solution of 4 for n?A. -3n = 12B. 7 - n = 11C. n - 6 = -2D. 2.5n =
In the figure below, m Find m <1.
The product of 2 and a number x is 3/4. What is the value of x? x=5/4 x=3/8 x=1 1/4 x=3/2

What is the factored form of 5x+x^2=0

Answers

$5x+x^2=0\n \nx(5+x)=0\n \nx=0 \ \vee \ 5+x=0 \n\n x=0 \ \vee \ x=-5$

I'm giving 50 points and brainliest answer to whoever can answer this... Please show your work so I can try to understand it xD <3

Answers

Ok, to solve this first you have to set up your proportion:

9/150=x/230

/ is a fraction

x= the number of vials it will take to treat 230 patients

in order to solve this, you have to cross multiply:

9 x 230= 2070

150 · x= 150x

so you get 150x=2070

then divide 2070 by 150

2070/150= 13.8

so it would take 13.8 vials of medicine to treat 230 patients

Okay, firstly, you want to work out how many people will 1 vial of malaria treat. So, you do this:

150 divided by 9= 16.6

That means for every 1 vial, 16.6 people are treated.

Since the question asks you to find out how many vials are needed if you're required to treat 230 people, you would do this:

230 divided by 16.6= 13.8

That means you need 13.8 vials to treat 230 people.

A car depreciate $2000 each year it was owned and driven. What type of depreciation is this?

Answers

Answer:

Straight-line depreciation

Step-by-step explanation:

APE X

This would be an exponential decay model.

Find the range of the following piecewise function.[0,11)
(-4,6]
(0,11]
[-4,6)

Answers

Given:

The piecewise function is

$f(x)=\begin{cases}x+4 & \text{ if } -4\leq x<3 \n 2x-1 & \text{ if } 3\leq x<6 \end{cases}$

To find:

The range of given piecewise function.

Solution:

Range is the set of output values.

Both functions $f(x)=x+4$ and $f(x)=2x-1$ as linear functions.

Starting value of $f(x)=x+4$ is at x=-4 and end value is at x=3.

Starting value: $f(-4)=-4+4=0$

End value: $f(3)=3+4=7$

Starting value of $f(x)=2x-1$ is at x=3 and end value is at x=6.

Starting value: $f(3)=2(3)-1=5$

End value: $f(6)=2(6)-1=11$

Least range value is 0 at x=-4 and 0 is included in the range because -4 is included in the domain.

Largest range value is 11 at x=6 and 11 is not included in the range because 6 is not included in the domain.

So, the range of the given piecewise function is [0,11).

Therefore, the correct option is A.

Stephan has a dog that weighs 5 times as much as Ian's dog. The total weight of both dogs is 72 pounds. how much does Stephans dog weigh??

Answers

Answer:

Stephan's dog weighs 60 pounds.

Step-by-step explanation:

A system of equations is shown below:y = 5x + 3
y = 4x + 6

What is the solution to the system of equations?
(−3, 18)
(−3, −18)
(3, −18)
(3, 18)

Answers

For a system of equations to have no real solution, the lines of the equations must be parallel to each other. The solution of the system of equation y = 5x + 3 and y = 4x + 6 is (3,18).

What is a System of equations?

Inconsistent System

For a system of equations to have no real solution, the lines of the equations must be parallel to each other.

Consistent System

1. Dependent Consistent System

For a system of the equation to be a Dependent Consistent System, the system must have multiple solutions for which the lines of the equation must be coinciding.

2. Independent Consistent System

For a system of the equation to be an Independent Consistent System, the system must have one unique solution for which the lines of the equation must intersect at a particular.

The solution of the system of equations can be done as shown below, therefore,

Equation 1: y = 5x + 3

Equation 2: y = 4x + 6

Substitute the value of y from the first equation in the second equation, therefore,

y = 4x + 6

5x + 3 = 4x + 6

5x - 4x = 6 - 3

x = 3

Substitute the value of x in any one of the equation,

y = 5(3) + 3

y = 15 + 3

y = 18

Hence, the solution of the system of equation y = 5x + 3 and y = 4x + 6 is (3,18).

Learn more about System of equation:

brainly.com/question/12895249

#SPJ2

y=5x+3

y= 4x+6

Let's solve y=5x+3 for y

Substitute 5x+3 for y in y=4x+6

y=4x+6

5x+3=4x+6

Add -4x

5x+3-4x=4x+6-4x

x+3=6

Add -3

x+3-3=6-3

x=3

Now substitute 3 for x in y=5x+3

y=5x+3

y= (5)(3)+3

y= 15+3

y= 18

Answer D

(3,18)

I hope that's help:)