Refer a friend and earn $50 when they subscribe to an annual planRefer Now

Like

Report

No Related Subtopics

Missouri State University

Campbell University

Harvey Mudd College

Idaho State University

02:33

Taylor S.

Using Models Use the model given to answer the questions about the object or process being modeled. The power $P$ measured in horsepower (hp) needed to drive a certain ship at a speed of $s$ knots is modeled by $$P=0.06 s^{3}$$ (a) Find the power needed to drive the ship at 12 knots. (b) At what speed will a 7.5 -hp engine drive the ship?

03:34

Kyle I.

Using Models Use the model given to answer the questions about the object or process being modeled. The distance $d$ (in mi) driven by a car traveling at a speed of $v$ miles per hour for $t$ hours is given by $$d=v t$$ If the car is driven at 70 milh for 3.5 $\mathrm{h}$ , how far has it traveled?

07:29

James C.

Using Models Use the model given to answer the questions about the object or process being modeled. An ocean diver models the pressure $P$ ( in $\mathrm{lb} / \mathrm{in}^{2} )$ ) at depth $d$ (in ft) by $$P=14.7+0.45 d$$ (a) Make a table that gives the pressure for each 10 -ft change in depth, from a depth of 0 ft to 60 $\mathrm{ft}$ . (b) If the pressure is $30 \mathrm{lb} / \mathrm{in}^{2},$ what is the depth?

01:11

Ruirui L.

Making Models : Write an algebraic formula that models the given quantity. 13. The number $N$ of cents in $q$ quarters

Create your own quiz or take a quiz that has been automatically generated based on what you have been learning. Expose yourself to new questions and test your abilities with different levels of difficulty.

Create your own quiz

we're being asked to determine if five and seven are solutions of the equation. Three X minus seven is equal to eight. Well, if something is a solution for an equation, that means when it substituted in place of the variable, it will make a true statement. So let's start. Let's start by checking to see if five is a solution. So what we'll do is we'll substitute five in place of acts. So when we do that, we'll have three times five minus seven and we want to know is this equal to eight? So what we're gonna do is follow the order operation operations on the left hand side. Well, we have multiplication subtraction. So first we'll take care of the multiplication. Well, three times five is equal to 15, so we're gonna be left with 15 minus seven, and we need to know if it's equal to eight. Well, 15 minus seven is equal to eight. So is equal to eight. Yes, it iss. So what that means is, five is a solution of our equation. So five is a solution. All right, Now, let's see if seven still solution. So again, we're going to substitute seven in place of acts, so we would have three times seven minus seven on. We need to know. Is it equal to eight? So we're gonna follow the same water of operations. We're gonna start with our multiplication three times seven, which is 21. So we have 21 minus seven, and then 29 21 minus seven is equal to 14. So we're left with 14 is equal to eight. But this is not true. 14 is not equal to eight. So what that means is that seven is not a solution, So seven is not a solution. So, again, in order for a value to be in a solution for in equation, that means when it's substituted in place of the variable, it will create.

Linear Functions

Solve Linear Inequalities

Functions

Systems of Equations and Inequalities

Graph Linear Functions

01:40

02:34

02:42

06:44

01:08

02:15

02:56

03:24

02:43

01:46

01:55

02:48

01:58

04:46

01:12

03:01

03:02

02:55

01:28

01:45

02:14

03:42

03:10

02:26

02:02

02:32

05:31

02:07

01:38

01:54

04:21

01:15

01:05

00:50

08:58