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Annette [7]
3 years ago
6

Alicia wrote these numbers:2,9,15,21.which of Alicia numbers is not a composite number?

Mathematics
2 answers:
Salsk061 [2.6K]3 years ago
5 0
2 is a prime number

not composite

Thepotemich [5.8K]3 years ago
4 0
A number can either be composite or prime. The only prime number that you listed here is 2, because the only factors of 2 are 1 and itself. 
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The owner of an orange grove estimates that if 24 trees are planted per acre, then each mature tree will yield 600 oranges per y
tia_tia [17]

Answer:

16428 oranges

Explanation:

Total yield = number of trees × number of oranges in each tree

Initial yield = 600×24= 14400 oranges

To find the equation needed, let x = additional trees and y= total yield

Number of trees = 24 +x

Number of oranges in each tree = 600-12x

Equation of total yield y= (24+x)(600-12x)

y= 14400-288x+600x-12x²

y= -12x²+312x+14400

Using a graphing calculator, from the graph drawn for this quadratic equation, we notice that it is a parabola. Therefore to find the maximum value, we should find the maximum point which is at the vertex of the parabola, we use the formula x= -b/2a

A quadratic equation is such: ax²+bx+c

Therefore x =-312/2×-12

x= -312/-24

x= 13

So we can conclude that in order to maximise oranges from the trees, the person needs to plant an additional 13 trees. Substituting from the above:

24+x=24+13= 37 trees in total

y= -12x²+312x+14400= -12×13²+312×13+14400= -2028+4056+14400

=16428 oranges in total yield

8 0
3 years ago
2. convert the following degrees to redians. 3. Convert the following radians to degrees.​
astraxan [27]

Answer:

Use the app photomath

Step-by-step explanation:

6 0
3 years ago
What is the unit rate for 99/12
Nana76 [90]

Answer:

99 ÷ 12


12 ÷ 12


=  

8.25 cm


1


=  

8.25


cm


= 8.25 cm per cm


6 0
4 years ago
How do I factor out a constant before factoring out a quadratic? <br>Factor completely: 3w^2-3w-90
pantera1 [17]
3w^2-3w-90 =0 \ \ \:3 \\ \\w^2- w-30 =0 \\ \\a=1 , \ b= -1 , c= -30 \\ \\\Delta =b^2-4ac = (-1)^2 -4\cdot1\cdot (-30) =1+120=121 \\ \\w_{1}=\frac{-b-\sqrt{\Delta} }{2a}=\frac{1-\sqrt{121}}{2 }=\frac{ 1-11}{2}=\frac{-10}{2}=-5

w_{2}=\frac{-b+\sqrt{\Delta} }{2a}=\frac{1+\sqrt{121}}{2 }=\frac{ 1+11}{2}=\frac{12}{2}=6 \\ \\ Answer:\\ \\ w^2- w-30 =(x+5)(x-6)
 

3 0
3 years ago
Jan age is 3 less than the twice triss agethe sum of thier ages is 30
tresset_1 [31]
Jan is 19, Triss is 11.
3 0
3 years ago
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