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
kogti [31]
3 years ago
7

X^2=14x-49. i just dont know how to do the steps to solve this equation

Mathematics
1 answer:
KonstantinChe [14]3 years ago
5 0
x^2=14x-49 \\ \\ x^2 - 14x + 49 = 0 \ / \ move \ terms \\ \\ x^2 - 2(x)(7) + 7^2 = 0 \ / \ rewrite \\ \\ (x - 7)^2 = 0 \ / \ square \ of \ difference \ method \\ \\ x - 7 = 0 \ / \ square \ root \ each \ side \\ \\ x = 7 \ / \ add \ 7 \\ \\

The answer is: x = 7.
You might be interested in
How does scale factor affect the change in area?​
MrRa [10]
<h3>Answer:</h3>

<u>It squares the amount you scaled it by.</u>

<h3>Step-by-step explanation:</h3>

For example, imagine that you had 2 by 2 square, and then you put it through a scale factor of 2.

Now each side length would be double of what it once was.

But when you multiply the new lengths together, the area would be of 4 times more.

(Original Equation)  2 * 2 = 4

(Scale Factor of 2)   4 * 4 = 16

So when the scale factor is made, the area would be squared to the multiple that you scaled it by.

<em>***A square root is a number times itself.</em>

<em>(eg): 3 * 3 = </em><em>9</em>

<em>        15 * 15 = </em><em>225</em>

<em>9 and 225 would be the square root in these problems.</em>

7 0
3 years ago
PLEASE HELP !!!!!!!!
Aloiza [94]
275 is the answer to the question
8 0
3 years ago
What is the formula for 'percent of change'?
Marina CMI [18]
First: work out the difference (increase) between the two numbers you are comparing. Then: divide the increase by the original number and multiply the answer by 100. % increase = Increase ÷ Original Number × 100. If your answer is a negative number, then this is a percentage decrease. ( copy and paste from skillsyouneed.com )
6 0
3 years ago
Read 2 more answers
6
qwelly [4]
28% of 1500 is 420.

so add it to 1500 and you’ll get 1920
7 0
2 years ago
Solve by setting up a system of linear equations with 2 variables and 2 unknowns. Two hundred seventy six students enrolled in a
jeyben [28]

Let us say ,

x=number of students who passed

y=number of students who failed

total number of students =276

x+y=276..................(1)

We are given 5 times the number of students passed as failed.

x=5y.............(2)

plugging value of x from (2) in (1),

5y+y=276

6y=276

y=46

x=5y=46*5=230

x=number of students who passed=230

4 0
3 years ago
Other questions:
  • The flower color of bigleaf hydrangeas is determined by the soil's pH. A gardener growing blue hydrangeas believes that lime may
    6·1 answer
  • 4. Kay and Allen sell cell phones. Last month Kay sold 17 more cell phones than Allen. Together they both sold 117 cell phones.
    10·2 answers
  • 576 is what percent of 800?
    5·2 answers
  • Find the output, y, when the input, , is 30.<br> y= 14 - 0.5.2
    5·1 answer
  • At the grocery store, you buy five cartons of eggs at $3.06 of a gallon. You give the clerk a 20-dollar bill. How much change wi
    11·1 answer
  • Choose two transformations that could have been performed on triangle JKL to form congruent triangle J"K"L".
    12·1 answer
  • Is six pen cost $2.10 what is the unit price of the pen?
    11·2 answers
  • I don’t know what to do?
    7·1 answer
  • Find the slope of the altitude on each side of triangle ABC (a) A(1,0), B(-3, 4),C(-1,-3)<br>​
    12·1 answer
  • How much did she spend
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!