1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
jenyasd209 [6]
2 years ago
13

Which investor is making a common investment mistake

Mathematics
1 answer:
stellarik [79]2 years ago
7 0

Answer:

Constantly watching the markets

Step-by-step explanation:

You might be interested in
What's the value of x ? (I marked a random answer )
kondor19780726 [428]
X^2 = 60
x = +-sqrt(60)
6 0
3 years ago
The Johnson twins were born eleven years after their older sister. This​ year, the product of the three​ siblings' ages is exact
vodka [1.7K]
So there are 3 siblings: the first twin, the second twin, and their older sister.

Since the sister is older by 11 years, you can represent their relationship with the following equation;
age of twin = age of older sister - 11
t = s - 11

Representing this next part may be a little hard to show, but i'll do my best :)

Adding the ages together can be represented like this;
total age = t + t + s
If the product of their ages ( t * t * s ) is 1181 more than the sum, you can show it like this:
t * t * s = (t + t + s) + 1181
Now you substitute in (s - 11) for t because s = t - 11.
t * t * s = (t + t + s) + 1181\\
(s-11) * (s-11) * s = ((s-11) + (s-11) + s) + 1181\\
(s^{2}-22x+121)*s=s+s-11-11+1181\\
s^{3}-22s^{2}+121s-2s=1159\\
s^{3}-22s^{2}+118s-1159=0
Factor:
Since it's a third-degree equation, I just entered it into a polynomial solver in my calculator. There was only one factor listed, x = 19. Using (s - 19) = 0 as a factor, the equation becomes the following:
s^{3}-22s^{2}+118s-1159=0\\
(s-19)(s^{2}-3s+61)=0
Using the quadratic formula, you get:
s= \frac{-b(+-)\sqrt{b^{2}-4ac}}{2a}\\
s= \frac{-(-3)(+-)\sqrt{(-3)^{2}-4(1)(61)}}{2*1}\\
s= \frac{3(+-)\sqrt{(9)-244}}{2}\\
s= \frac{3(+-)\sqrt{-235}}{2}

Since you have a square root of a negative number, the answer will be imaginary. You cannot have an age that is imaginary, so the age of the older sister (s) is 19 years.

Because t = s - 11, that means that t = (19) - 11 = 8.
t is the age of the twins, so the twins are 8 years old.
8 0
3 years ago
What is the perimeter of rectangle JKLM?
egoroff_w [7]

Answer:

16

Step-by-step explanation:

7 0
2 years ago
Help me I'll make brainiest
aev [14]
<h3>Answer:  RS = 16</h3>

========================================

Explanation:

The ratio QR : RS : ST  is equal to 1 : 4 : 5

This means we have the following three equations

  • QR = x
  • RS = 4x
  • ST = 5x

For some positive number x.

Note the ratio QR : RS : ST turns into x : 4x : 5x, which reduces to 1 : 4 : 5 when we divide all three parts by x .

Along with those three equations, we'll also use QT = 40 as well.

Now turn to the segment addition postulate. Plug in the equations mentioned earlier, and solve for x .

QT = QR + RS + ST

40 = x+4x+5x

40 = 10x

10x = 40

x = 40/10

x = 4

So we know that

QR = x = 4

RS = 4x = 4*4 = 16

ST = 5x = 5*4 = 20

-----------

As a check,

QR + RS + ST = 4 + 16 + 20 = 40

which is the same as QT = 40

Therefore, we've confirmed that QR + RS + ST = QT is correct and we've confirmed our answers.

7 0
3 years ago
B. Henry lives 95 km from work. How many kilometres does he drive to and from work each week?
devlian [24]

Answer:

(b) 950 km

(c) 90 litres

(d) $108

Step-by-step explanation:

Henry lives 95 km from work.

Number of km from home to work = 95 km

Number of km from work to home = 95 km

One day = 95 + 95 = 190 km

<u>Assuming he works 5 days a week.</u>

1 day = 190 km

5 days = 190 x 5 = 950 km

<u>Assuming he works 5 days a week.</u>

1 day = 18 litres

5 days = 18 x 5 = 90 litres.

<u>Assuming he works 5 days a week.</u>

1 litre = 120 cents

90 litres = 120 x 90 = 10800 cents = $108

3 0
3 years ago
Other questions:
  • If one inch represents 8 feet, what dimensions would you use to make a scale drawing of a building 34 feet by 75 feet?
    12·1 answer
  • A race was 493 meters.If 73 people ran in the marathon how many meters would they have run total
    15·2 answers
  • There were several sunny days this year before my birthday. Since my birthday, there have been 171717 more sunny days. My birthd
    6·1 answer
  • Jada read 158-page novel. She read the same number of pages, "p", each day for 8 days. On the ninth day, she read the remaining
    6·1 answer
  • Number 13<br> 8x1+3x-10=5x+15
    10·1 answer
  • Ew Mathematics i am just filling up the space
    7·1 answer
  • The number of bacteria in a certain population increases according to a continuous exponential growth model, with a growth rate
    10·1 answer
  • Solve for x. Round your answer to two decimal places. Show your work for full credit.
    5·1 answer
  • Can some pleasee help me with these or atleast one
    9·1 answer
  • Find the area of the isosceles triangle.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!