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mamaluj [8]
2 years ago
8

What value of n makes the equation true? Show your work.

Mathematics
1 answer:
sleet_krkn [62]2 years ago
6 0

Answer:

n=13

Step-by-step explanation:

When multiplying two numbers with the same base, add the exponents

8^{9} *8^{4} =8^{13}

When dividing two numbers with the same base, subtract the exponents\frac{(8^{n})^{3}}{8^{2} } =(8^{n})^{3-2}=(8^{n})^{1}=8^{n}

So

8^{13} =8^{n}

The bases are the same, so you can cancel them

13=n

n=13

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Determine if events A and B are independent.
Alchen [17]

Answer:

Independent

Dependent

Step-by-step explanation:

Two events are independent of each other when you can mulitply them and get their intersect

we can can see that

9/20*7/10= 63/200 so these events are independent

For number 2

7/10*7/10≠ 21/40 so these events are dependent

4 0
3 years ago
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

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3 years ago
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11. If a square has an area of 121 square meters, what is the side length? A. 60.5 m B. 12 m C. 11 m D. 484 m​
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Answc

Step-by-step explanation:

answer= C. 11m

3 0
3 years ago
Two times the quantity of seven less than one fourth of a number is equal to four more than one third of the number what is the
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Answer:

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Step-by-step explanation:

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3 years ago
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