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malfutka [58]
3 years ago
14

The odometer in Mr.Washington car does not work correctly. The odometer recorded 13.2 miles for his last trip to the hardware st

ore, bit he knows the distance traveled is 15 miles. What is the percent error?
Mathematics
2 answers:
Marina CMI [18]3 years ago
6 0
It 15 divided by 13.2 which is 1.1%

the 1.8 is wrong because 15- 13.2 gives you the difference in mileage
Klio2033 [76]3 years ago
3 0
I think  the answer its 1.8 percent because if you subtract 15-13.2 comes out to be 1.8.

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$150 as a percentage of $500
saveliy_v [14]
I think the answer is 30 

Because I did 150÷500×100


3 0
4 years ago
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Given the position of the particle, what the position(s) of the particle when it’s at rest
choli [55]

The position function of a particle is given by:

X\mleft(t\mright)=\frac{2}{3}t^3-\frac{9}{2}t^2-18t

The velocity function is the derivative of the position:

\begin{gathered} V(t)=\frac{2}{3}(3t^2)-\frac{9}{2}(2t)-18 \\ \text{Simplifying:} \\ V(t)=2t^2-9t-18 \end{gathered}

The particle will be at rest when the velocity is 0, thus we solve the equation:

2t^2-9t-18=0

The coefficients of this equation are: a = 2, b = -9, c = -18

Solve by using the formula:

t=\frac{-b\pm\sqrt[]{b^2-4ac}}{2a}

Substituting:

\begin{gathered} t=\frac{9\pm\sqrt[]{81-4(2)(-18)}}{2(2)} \\ t=\frac{9\pm\sqrt[]{81+144}}{4} \\ t=\frac{9\pm\sqrt[]{225}}{4} \\ t=\frac{9\pm15}{4} \end{gathered}

We have two possible answers:

\begin{gathered} t=\frac{9+15}{4}=6 \\ t=\frac{9-15}{4}=-\frac{3}{2} \end{gathered}

We only accept the positive answer because the time cannot be negative.

Now calculate the position for t = 6:

undefined

6 0
1 year ago
12.73+0.06x=13.48+0.14x
Afina-wow [57]
X= -9.375. 0.06x-0.14x=13.48-12.73. -0.08x=0.75
3 0
3 years ago
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If cos Θ = negative 4 over 7, what are the values of sin Θ and tan Θ?
FinnZ [79.3K]
Given cos theta is equal to - 4/ 7 then we can conclude that theta is in the second and third quadrants. In this case, the other leg is equal to square root of (7^2 - 4^2 ) equal to square root of 33. In this case, sin theta can be equal to +- square root of 33 / 7 and tan theta is equal to +-square root of 33 / 4.
7 0
3 years ago
the perpendicular distance of a point from the x-axis is 4 units and the perpendicular distance from the y axis is 5 units write
quester [9]

Step-by-step explanation:

let p be the point which is at a distance of 4 units from the x-axis and at a distance of 5 units from the y axis

(i) When P lies in the first quadrant then the coordinates of P are (5,4).

(ii) When of P lies in the second quadrant then the coordinates of P are (-5,4).

(iii) When P lies in the third quadrant then the coordinates of P are (-5,-4).

(iv) When P lies in the fourth quadrant then the coordinates of P are (5,-4).

<h3>Hope it helps you!!</h3>

7 0
2 years ago
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