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
Lapatulllka [165]
2 years ago
8

Solve the equation by factoringx^-2x=15​

Mathematics
1 answer:
Reil [10]2 years ago
4 0

Step-by-step explanation:

Add one to both sides of the equation:

x^2 - 2x + 1 = 15 + 1

\Rightarrow (x - 1)^2 = 16

Taking the square root of the equation above, we get

x - 1 = \pm 4

or

x = 1 \pm 4 = 5, -3

You might be interested in
⦁ A $10,000 certificate of deposit earns simple interest of 8 percent per year. Calculate the total earned money over the 5 year
abruzzese [7]

Answer:

The total earned money over the 5 year period=$14,000

Step-by-step explanation:

We are given that

Principle amount, P=$10000

Rate of interest, r=8%

Time, t=5 years

We have to find the total earned money over the 5 year period.

We know that

Simple interest=\frac{P\times r\times t}{100}

Using the formula

S.I=[tex]\frac{10000\times 8\times 5}{100}{/tex]

S.I=$4000

Now,

Amount=P+S.I

Amount=10000+4000

Amount=$14000

Hence, the total earned money over the 5 year period=$14000

4 0
2 years ago
A card is drawn from a well-shuffled deck of 52 cards. find p(drawing an ace or a 9). 8
Maru [420]
P=8/52
p=0.15
p=15 percent
7 0
3 years ago
Ella earned $251.20 at her job when she worked for 16 hours. What was her hourly wage, in dollars per hour?​
Sophie [7]

Answer:

$15.70 an hour

Step-by-step explanation:

$251.20/16= $15.70

5 0
2 years ago
Read 2 more answers
Brianna can buy 14 pencils for $1.50 at the school store. At that rate, about how much would 100 pencils cost?
LuckyWell [14K]

Answer:

we conclude that the cost of 100 pencils = $11

Step-by-step explanation:

Brianna can buy 14 pencils for $1.50 at the school store.

so

unit rate =  $1.50 /  14 pencils

              = 0.11 USD per pencil

Thus,

The cost of 1 pencil =  $0.11

The cost of 100 pencils = $0.11 × 100

                                       = $11

Therefore, we conclude that the cost of 100 pencils = $11

5 0
3 years ago
what is the y-intercept of the equation of the line that is perpendicular to the line y = 3/5x 10 and passes through the point (
bazaltina [42]
Perpendiculare means the slopes multiply to -1

y=3/5x+10
slope is 3/5
3/5 times what is -1
-5/3 is answer

slope of perpenduclar is-5/3 find y int
y=-5/3+b
point given is (15,-5)
x=15
y=-5

-5=-5/3(15)+b
-5=-25+b
add 25 to both sides
20=b

the yintercept is y=20 or the oint (0,20)
6 0
3 years ago
Other questions:
  • Three friends buy one pack of 80 stickers. T hey divide the stickers equally and give the remainder to their teacher. How many w
    11·1 answer
  • MATH HELP?????What is a square root???????????
    15·2 answers
  • I can't seem to figure this question out. I've worked it out but I keep getting stuck
    8·1 answer
  • Use the Distributive Property to multiply 9 and 37 in your head. After 37 is in expanded form, multiply 9 by each addend. (9 × 3
    9·2 answers
  • Mr. and Mrs. Jones wanted to plan a fun day with their two children. An adult ticket to the local amusement park is $20. A child
    5·2 answers
  • How do you solve this equation on surds?
    10·1 answer
  • A car salesperson earns a 18% commission on every car sold. The salesperson sells a car for $37,560. What is the commission?
    7·1 answer
  • 10x + 8 variables and expressions 6 grade
    14·2 answers
  • Find d²y/dx² in terms of x and y.<br>y^5 = x^7<br>d²y/dx² =????​
    6·1 answer
  • Convert: 5 m = ________mm
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!