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makkiz [27]
2 years ago
11

Anita had $400 in her savings account when she went to college. Her parents will add $200 to her account each month.

Mathematics
2 answers:
Stolb23 [73]2 years ago
6 0
Anita's account had linear growth
Miguel's account had exponential growth.
Miguel's account grew faster because exponential growth is faster than linear growth
Anna007 [38]2 years ago
5 0

Answer:

Miguel's account will grow fast.

Step-by-step explanation:

It is given that:

  • Anita had $400 in her savings account when she went to college. Her parents will add $200 to her account each month.

Let g(t) represents the function that represent the amount of money in Anita's account in 't' months.

Hence, the function g(t) is given by:

g(t)=400+200t

  • Miguel had $25 in his savings account. His parents will double the amount in his account each month.

Let f(t) represents the function that represent the amount of money in Anita's account in 't' months.

Hence, the function g(t) is given by:

f(t)=25\times 2^t

Clearly we could observe that the amount of money in Anita's account have a linear growth and the amount of money in Miguel's account has a exponential growth and we know that exponential function has a more increase i.e. it increases faster than the linear function.

Hence,

Miguel's account will grow fast.

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walnut grower estimates from past records that if 20 trees are planted per acre, then each tree will average 60 pounds of nuts p
laila [671]

Answer:

5 trees should be planted to maximize the yield per acre,

The maximum yield would be 1250

Step-by-step explanation:

Given,

The original number of trees per acre = 20,

Average pounds of nuts by a tree = 60,

Let x be the times of increment in number of trees,

So, the new number of trees planted per acre = 20 + x

∵ for each additional tree planted per acre, the average yield per tree drops 2 pounds,

So, the new number of pounds of nut = (60 - 2x)

Thus, the total yield per acre,

Y(x) = (20+x)(60-2x)

Differentiating with respect to t ( time ),

Y'(x) = (20+x)(-2) + 60 - 2x = -40 - 2x + 60 - 2x = 20 - 4x

Again differentiating with respect to t,

Y''(x) = -4

For maxima or minima,

Y'(x) = 0

⇒ 20 - 4x = 0

⇒ 20 = 4x

⇒ x = 5,

For x = 5, Y''(x) = negative,

Hence, Y(x) is maximum for x = 5,

And, maximum value of Y(x) = (20+5)(60 - 10) = 25(50) = 1250,

i.e. 5 trees should be planted to maximize the yield per acre,

and the maximum yield would be 1250 pounds

4 0
2 years ago
the length of the highway is 1500 miles. If 1 inch represents 150 miles, what is the length of the highway on the map?
NeX [460]

Answer:

10 inches.

Step-by-step explanation:

If 1 inch represents 150 miles, and there are 1500 miles covered by the map, then the length of the highway on the map is 10 inches.

4 0
2 years ago
Elaine bought $4 worth of apples and $3 worth of lemons did her grocery bag weigh more than 5 1/4
inysia [295]
1/4 will be your answer
7 0
2 years ago
What is the simplified form of the following expression? Assume x not-equals 0. RootIndex 5 StartRoot StartFraction 10 x Over 3
SVEN [57.7K]

Answer:

  \dfrac{\sqrt[5]{810x^3}}{3x}

Step-by-step explanation:

As a rule, the "simplified form" means there are no fractions under a radical.

  \sqrt[5]{\dfrac{10x}{3x^3}}=\sqrt[5]{\dfrac{10x(3^4x^2)}{3x^3(3^4x^2)}}=\sqrt[5]{\dfrac{810x^3}{(3x)^5}}=\boxed{\dfrac{\sqrt[5]{810x^3}}{3x}}

5 0
2 years ago
In a collection of 1050 flowers, 3/10 of them are red , 2/5 of them are
Rainbow [258]

Answer:

<h3><em>315 red flowers</em></h3><h3><em>420 white flowers</em></h3><h3><em>315 yellow flowers​</em></h3>

Step-by-step explanation:

1050 flowers

3/10 of them are red=> 3/10 *1050=3*105=315 red flowers

2/5, (or 4/10),  are white =>4/10 * 1050=4*105=420 white flowers

=> 1050-(315+420)=1050-735=315 yellow flowers​

3 0
2 years ago
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