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
marshall27 [118]
2 years ago
9

Apply your knowledge of square roots to solve equations involving them. Show your step-by-step solution. Remember, each problem

should have two solutions.
(7x-2)^2 = 256
Mathematics
1 answer:
Elena L [17]2 years ago
3 0
Remember to include the positive and negative roots


(7x-2)^2=256
sqrt both sides
7x-2=+/-16
add 2 to both sides
7x=2+/-16
divdide both sides by 7
x=(2+/-16)/7)

x=(2+16)/7=18/7=2 and 4/7
x=(2-16)/7=-14/7=-2

x=2 and 4/7 or -2

You might be interested in
The sum of three numbers is 141. The first number is 9 more than the third. The second number is 4 times the third. What are the
Advocard [28]

Answer:

x...third number

4x...second number

x-9...first number

(x)+(4x)+(x-9)=141

x+4x+x-9=141

6x-9=141

Let's add 9 to both sides...

9+6x-9=141+9

6x=150

Let's divide both sides by 6...

(6x)/6=150/6

x=25

third number...25

second number...(4)(25)=100

first number...(25-9)=16

Let's check our work...

25+100+16=141

141=141

6 0
2 years ago
What is 950% as a fraction
mrs_skeptik [129]

Answer:

9 1/2

Step-by-step explanation:

\frac{950}{100}=9\frac{50}{100} = 9 \frac{1}{2}

3 0
2 years ago
Can anyone help me answer this?
netineya [11]
We need to know how much tax she must pay based on her taxable income ,
Since un the table it states that taxable incomes that range between $0-$132000have a tax rate of 18% of each $1 .
We already know her taxable income that is = 129000, which ranges between 0 and 132000.
Hence we know how much tax she must pay .
First , we need to calculate how much 18% of $1 is
= 18/100 x 1 = $0.18
Per annum/year = $0.18 x $129,000 = $23,220

Per month = $23,220 / 12 = $1,935

Hope you found this helpful , good luck !
7 0
2 years ago
Read 2 more answers
Factor a number, variable, or expression out of 2x2 + 3x​
Lilit [14]

Answer:

x(2x+3)

Step-by-step explanation:

2x^2+3x=x(2x+3)

3 0
3 years ago
Read 2 more answers
Use the following information to answer the exercise. A vacation resort rents SCUBA equipment to certified divers. The resort ch
Phoenix [80]

Answer:

Dependent: fee

Independent: time

Step-by-step explanation:

The scenario described in question indicates that fee is the dependent variable and time is independent variable. The reasoning is that fee depends on the time(hour). The fee will increase as the time increases. Whereas change in time cause change in fee. So, fee is the dependent variable and time is independent variable.  

5 0
2 years ago
Other questions:
  • write two linear functions, f(x) and g(x). For example, f(x)= 3x-7 and g(x)= -2x+5. Then see whether f(x) - (-g(x)) is equivalen
    6·1 answer
  • Think of the number seven. Now add eight to it. Now add four more. Now subtract nine. Now add three. Your answer is _____.
    12·2 answers
  • The wheel on the broadcast spreader completes 150 2/3 revolutions per minute. How many revolutions does the wheel complete in 15
    7·2 answers
  • What are 12 times 12
    6·2 answers
  • What is the answer <br> 2x +3(x-1)=7x+1-2(x+2
    8·1 answer
  • Can someone find me the answer please?
    7·2 answers
  • Item 7 Find the perimeter of the shaded region. Round your answer to the nearest hundredth. A rectangle with length 13 and width
    6·1 answer
  • Find the slope of the line passing through the points (-5,6) and (6,6).<br> slope:
    12·2 answers
  • During the first 100 days, the school book store sold a total of 1,344
    9·1 answer
  • <img src="https://tex.z-dn.net/?f=%20%5Cfrac%7Bx%7D%7B4%7D%20%20%2B%20%20%5Cfrac%7B2x%7D%7B4%7D%20" id="TexFormula1" title=" \fr
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!