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SVETLANKA909090 [29]
3 years ago
12

Evaluate 9 – b when b = 8 what’s the answer

Mathematics
1 answer:
skad [1K]3 years ago
7 0

Answer:

1

Step-by-step explanation:

9-b is the same as 9-8 because b=8. 9-8=1.

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3. Patricia buys a round dining room table. If the radius of the table is 3 feet, what is the area she has
Jlenok [28]

Answer:

28 square feet

Step-by-step explanation:

Area = \pi r^{2}

Area = \pi×(3×3)

Area = 28.2743

6 0
3 years ago
Consider the force field and circle defined below.
grin007 [14]

By Green's theorem,

\displaystyle\int_{x^2+y^2=9}\vec F(x,y)\cdot\mathrm d\vec r=\iint_D\left(\frac{\partial(xy)}{\partial x}-\frac{\partial(x^2)}{\partial y}\right)\,\mathrm dx\,\mathrm dy=\iint_Dy\,\mathrm dx\,\mathrm dy

where C is the circle x^2+y^2=9 and D is the interior of C, or the disk x^2+y^2\le1.

Convert to polar coordinates, taking

\begin{cases}x=r\cos\theta\\y=r\sin\theta\end{cases}\implies\mathrm dx\,\mathrm dy=r\,\mathrm dr\,\mathrm d\theta

Then the work done by \vec F on the particle is

\displaystyle\iint_Dy\,\mathrm dx\,\mathrm dy=\int_0^{2\pi}\int_0^3(r\sin\theta)r\,\mathrm dr\,\mathrm d\theta=\left(\int_0^{2\pi}\sin\theta\,\mathrm d\theta\right)\left(\int_0^3r^2\,\mathrm dr\right)=\boxed0

4 0
3 years ago
6973x63 pls explain how u did it!
Goryan [66]

Answer:

4,39299

Step-by-step explanation:

I multiplied 3 x all the numbers in 6,973, then 6 x all the numbers (I added a 0 before I multiplied, then added both the products and got my answer.

4 0
2 years ago
Identify the slope of the line<br> y=-4- 1/6x
NemiM [27]
Y=mx+b
y=-1/6x-4
slope= -1/6
6 0
2 years ago
Compute the probability of randomly selecting a three or club.
Pavlova-9 [17]
Find the total number of cards in a deck. Count all the # 3’s total cards/#3 cards
Count all the clubs total card/ clubs
Not sure if you are counting 3’s & clubs together. If you are, total cards/ both
So all you have to do is count & then divide to get the probability.
5 0
3 years ago
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