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iVinArrow [24]
3 years ago
7

Which of the following best describes a regular polygon when the measure of each exterior angle is 90?

Mathematics
2 answers:
Darina [25.2K]3 years ago
8 0
<span>A. Quadrilateral i will be wrong</span>
marin [14]3 years ago
7 0
I would think A because regular quadrilaterals have 90-degree angles.
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The Brown family is on their way home from a cross-country road trip. During the
love history [14]

Answer:

Step-by-step explanation:

D(15) = 3500 -20(15)

D(15) = 3500 - 300

D(15) = 3200

In 15 hours of driving the Brown family is 3200(no unit given) away from home.

3 0
3 years ago
what is the rate of change for the linear relationship modeled in the table? x y −1 10 1 9 3 8 5 7 -1/2 0 1/2 2
Vesnalui [34]

Answer:

Rate of change for the linear relationship modeled is \dfrac{-1}{2}

Step-by-step explanation:

As the there is a linear relationship in the points, so all these points will be on a single straight line. Hence the slope will be same throughout all the points.

We know that, the slope of the line joining (x₁, y₁) and (x₂, y₂) is,

m=\dfrac{y_2-y_1}{x_2-x_1}

Putting the points as (-1, 10) and (1, 9), we get

m=\dfrac{9-10}{1-(-1)}

=\dfrac{9-10}{1+1}

=\dfrac{-1}{2}

Rate of change is the slope of the line joining all these points.

7 0
3 years ago
Read 2 more answers
Cheryl drove 4 hours at a constant rate to travel 160 miles. At what rate did she drive? A. 20 mph B. 35 mph C. 40 mph D. 72 mph
erik [133]

Answer:

40 mph

Step-by-step explanation:

you take your miles 160 and divide them by 4 which is going to be 40

5 0
3 years ago
Read 2 more answers
Please help I am really struggling:(
Nastasia [14]
The equation would be 4(-22)-5
7 0
3 years ago
Read 2 more answers
Evaluate ,where e is the solid that lies between the cylinders x^2+y^2=1 and x^2+y^2=16, above the xy-plane, and below the plane
MA_775_DIABLO [31]
Assuming you're just computing the volume, i.e.

\displaystyle\iiint_E\mathrm dV

we should convert to cylindrical coordinates first, setting

\begin{cases}x=r\cos\theta\\y=r\sin\theta\\z=\zeta\end{cases}

so that the volume is given by

\displaystyle\iiint_E\mathrm dx\,\mathrm dy\,\mathrm dz=\int_{\theta=0}^{\theta=2\pi}\int_{r=1}^{r=4}\int_{\zeta=0}^{\zeta=r\sin\theta+4}r\,\mathrm d\zeta\,\mathrm dr\,\mathrm d\theta

which has a value of 60\pi.
3 0
3 years ago
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