Web4. Find the mass of a ball B given by x2 +y2 +z2 ≤ a2 if the density at any point is proportional to its distance from the z-axis (use cylindrical coordinates). Solution. Since the density is proportional to the distance from the z-axis, the density func-tion is f(x,y,z) = k p x2 +y2. The plane region D is a disk with radius a. So E : 0 ≤ ... WebFirst go to the Algebra Calculator main page. Type the following: First type the expression 2x. Then type the @ symbol. Then type x=3. Try it now: 2x @ x=3 Clickable Demo Try entering 2x @ x=3 into the text box. After you enter the expression, Algebra Calculator will evaluate 2x for x=3: 2 (3) = 6. More Examples
Systems of equations with substitution: y=-5x+8 & 10x+2y=-2 - Khan Academy
Webx - y = 8 ---add y to both sides x = y + 8 2) put this expression in place of the x in the other equation x + 3y = 12 (y + 8) + 3y = 12 -- group like terms (y + 3y) + 8 = 12 -- add 4y + 8 = 12 -- subtract 8 from both sides 4y = 4 -- divided by 4 y = 1 3) put this back into the equation from step 1 to find x x = y + 8 x = 1 + 8 x = 9 WebFind the x and y Intercepts 6x-y=5. Step 1. Find the x-intercepts. Tap for more steps... To find the x-intercept (s), substitute in for and solve for . Solve the equation. Tap for more … richard hartung seattle
Algebra Calculator Tutorial - MathPapa
WebFeb 11, 2024 · If x/5=y/8 then (x+5): (y+8) is equal to Advertisement Expert-Verified Answer 73 people found it helpful boffeemadrid Answer: Step-by-step explanation: It is given that ⇒ therefore, and Now, Therefore, . Find Math textbook solutions? Class 12 Class 11 Class 10 Class 9 Class 8 Class 7 Class 6 Class 5 Class 4 Class 3 Class 2 Class 1 WebThe slope of the line is the value of , and the y-intercept is the value of . Slope: y-intercept: Slope: y-intercept: Step 4. Any line can be graphed using two points. Select two values, … WebSo to summarize, an equation has a fixed result (after the sign) and an unique set of solutions (values of the variables); a function can have a lot of results (possibly ) and, as a consequence, a lot of solutions. hope it helps Gió · 2 · Mar 9 2015 What does a dependent and independent variable mean? Answer: I tried this: Explanation: richard hartt