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Studentka2010 [4]
3 years ago
15

Sally has 3 dozen fig trees which she planted in 4 rows how many trees were in each row?​

Mathematics
2 answers:
STALIN [3.7K]3 years ago
8 0
There was 9 trees in each row
Black_prince [1.1K]3 years ago
7 0
36/4 = 9 trees in each row
That would be your answer.
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If it is a square, then it is a quadrilateral
LenaWriter [7]
I think so I don’t know though
3 0
4 years ago
An experiment involves 16 participants. From these, a group of 4 participants is to be tested under a special condition. How man
zheka24 [161]

Answer:

43,680 ways.

Step-by-step explanation:

We have been given that an experiment involves 16 participants. From these, a group of 4 participants is to be tested under a special condition. We are asked to find the number of groups of 4 participants that can be chosen, assuming that the order in which the participants are chosen is irrelevant.

We will use permutations formula to solve our given problem.

^nP_r=\frac{n!}{(n-r)!}

For our given problem n=16 and r=4.

^{16}P_4=\frac{16!}{(16-4)!}

^{16}P_4=\frac{16!}{12!}=\frac{16*15*14*13*12!}{12!}=16*15*14*13=43,680

Therefore, 4 participants can be chosen in 43,680 different ways.  

6 0
4 years ago
Please. help me solve. this !!!!! very hard. , explain. please
umka2103 [35]
102
the angles are alternate so they add up to 180
180-78=102

hope this helps :)
if you need me to explain more just let me know :)
6 0
3 years ago
Find the volume of the solid under the plane 3x+2y−z=0 and above the region enclosed by the parabolas y=x^2 and x=y^2.
Yuri [45]

The region in the <em>x</em>-<em>y</em> plane is the set of points

R=\{(x,y)\mid0\le x\le 1,x^2\le y\le\sqrt x\}

The height of the solid falls between the <em>x</em>-<em>y</em> plane (for which <em>z</em> = 0) and the equation of the plane, <em>z</em> = 3<em>x</em> + 2<em>y</em>.

So the volume is

\displaystyle\int_0^1\int_{x^2}^{\sqrt x}\int_0^{3x+2y}\mathrm dz\,\mathrm dy\,\mathrm dx

=\displaystyle\int_0^1\int_{x^2}^{\sqrt x}(3x+2y)\mathrm dy\,\mathrm dx

=\displaystyle\int_0^1(3x^{3/2}+x-3x^3-x^4)\,\mathrm dx

=\displaystyle\frac65+\frac12-\frac34-\frac15=\boxed{\dfrac34}

5 0
3 years ago
Explain your answer <br> 49= X/7
Ahat [919]

Refer to attachment for your answer

7 0
3 years ago
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