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Scilla [17]
3 years ago
14

When their child was born, her parents invested $40,000 in a plan guaranteed to increase by 3% per year. The logarithmic functio

n y equals 77.9 log start fraction x over 40,000 end fraction can be used to determine the number of years, y, it takes for the investment to be worth x dollars.
Exponential graph modeling the equation y equals seventy seven point nine times the log of the quantity x over forty thousand. Graph comes up from the left along the y axis and goes through the point forty thousand comma zero and continues to the right towards infinity.

After how many years will the investment be worth approximately 50% more than it was originally and how old will their child be when the investment is worth about $100,000?

The investment is worth approximately 50% more after 25 years, and the investment is worth $100,000 when their child is about 31 years old.
The investment is worth approximately 50% more after 5 years, and the investment is worth $100,000 when their child is about 25 years old.
The investment is worth approximately 50% more after 14 years, and the investment is worth $100,000 when their child is about 31 years old.
The investment is worth approximately 50% more after 31 years, and the investment is worth $100,000 when their child is about 25 years old.

Mathematics
1 answer:
11Alexandr11 [23.1K]3 years ago
3 0
this is a really long question dang
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If lin runs 21 laps at the same rate, how long does it take her 25.6 minutes How many laps per minute is that? __ laps
Alex Ar [27]

Answer: 0.82 laps per minute

Step-by-step explanation:

Lin is running 21 laps in 25.6 minutes.

To find out her speed in laps per minute, divide the distance she has ran by the time it took her to run it.

= Distance / time

= 21 / 25.6

= 0.82 laps per minute

6 0
3 years ago
If you scale a figure by less than 1 or less than 100%, does the new copy increase or decrease in size? *​
nasty-shy [4]

Answer:

Decrease

Step-by-step explanation:

It gets smaller because it is 100% is full size, so less would make it smaller

3 0
2 years ago
Solve 4(x-5)= 14 please answer nowww
Anna35 [415]

Answer:

x=8.5

Step-by-step explanation:

To solve this equation, we want to find out what x is. To do this, we need to get x by itself.

Perform the opposite of what is being done to the equation. Remember to perform everything to both sides.

4(x-5)=14

4 is being multiplied by x-5. The opposite of multiplication is division. Divide both sides by 4.

4(x-5)/4=14/4

x-5=14/4

x-5=3.5

5 is being subtracted from x. The opposite of subtraction is addition. Add 5 to both sides.

x-5+5=3.5+5

x=3.5+5

x=8.5

Let's check our solution. Plug 8.5 in for x in the original equation.

4(x-5)=14

4(8.5-5)=14

4(3.5)=14

14=14

Both sides of the equation are the same, so we know our solution, <u>x=8.5 </u>is correct.

6 0
2 years ago
Read 2 more answers
Please help me i have a hw
aalyn [17]

Answer:

1.B 2.H 3. A

Step-by-step explanation:

1. First, find out the percentage of people who voted for Mathematika in survey one.

The total amount of people who voted is 14+17+19, which equals 50. 17/50 people voted for Mathematika, 17/50 = 0.34.

To find out how many people out of 300 will vote for Mathematika, multiply the 0.34 by 300. 300 x 0.34 = 102, so 102 people will vote for Mathetika.

2. You use the same logic for number 2. 14+17+19+20+19+11 = 100, so 100 people voted in total. 34 people voted for Infinitus. 34/100 = 0.34. Multiply 0.34 by 750 to get 255 people will vote for Infinitus.

3. The mean = the average. To find the average, add up all of the numbers, then divide that number by the amount of numbers added together.

7+9+11+13+15 = 55

5 numbers were added together so you divide 55 by 5

55/5 = 11. The mean is 11

9+10+11+12+13 = 55

There were 5 numbers added together

55/5 = 11. Both the means were the same

4 0
3 years ago
Which following is the answer below select all that apply
tester [92]

Answer:

the answers should be c and e send

5 0
3 years ago
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