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expeople1 [14]
3 years ago
6

Select the expressions that are equivalent to 2(9r)

Mathematics
1 answer:
pashok25 [27]3 years ago
5 0

Answer:

18r

Step-by-step explanation:

Multiply 9 by 2

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Solve 4x-3y=-1 and 2x+3y=13 using the elimination method
patriot [66]

Answer:

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
eugheugh eughhhh I've been listening to my comfort playlist stressing about this test for too long Please just help ;-;
Kaylis [27]

Answer:

2 and 4 are correct

Step-by-step explanation:

1 is incorrect because 4/5 being bigger than 7/10

3 is incorrect because 2/3 is more than 5/9

6 0
3 years ago
There are 50 apple trees in an orchard. Each tree produces 800 apples. For each additional tree planted in the orchard, the outp
Mariana [72]

Answer:

  1. <em> 15</em>
  2. <em> 42,250</em>

Step-by-step explanation:

The given function is,

P=40000+300x-10x^2

where,

P = the total production of apples,

x = the number of trees added.

As the quadratic function has a negative leading coefficient, so it will open downward and at the vertex the value of function is maximum.

The vertex will be at \left(-\dfrac{b}{2a},-f\left(\dfrac{b}{2a}\right )\right)

The value of the function will be maximum at,

x=-\dfrac{b}{2a}

Putting the values,

x=-\dfrac{300}{2\times (-10)}=\dfrac{300}{2\times 10}=\dfrac{300}{20}=15

So at x=15 or for 15 number of trees the production will be ,maximum.

Putting x=15 in f(x) will yield the maximum production of apples.

P=40000+300(15)-10(15)^2=42,250

4 0
3 years ago
A recipe calls for 2 tablespoons of sugar for every 7 tablespoons of flour. If you plan on tripling the recipe what is the ratio
Karo-lina-s [1.5K]

you basically have to times it by 3 so

2:7

4:14

6:21

the answer would be 6 tablespoons of sugar to 21 tablespoons of flour

3 0
3 years ago
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Oscar needs to purchase soft drinks for a staff party. He is
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Answer:

sorry getting points

Step-by-step explanation:

4 0
3 years ago
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