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
ruslelena [56]
3 years ago
14

How do you solve x to the second power +7x=O

Mathematics
2 answers:
crimeas [40]3 years ago
8 0
Well the answer is 0 because if anything = 0 then it has to be multiplied by 0 so x = 0

kotykmax [81]3 years ago
5 0
X^2+7x=0
use the square root something....
(7/2)^2=49/4(add it to both sides)
x^2+7x+49/4=49/4
(x+7/2)^2=49/4
x+7/2=posinega 7/2
x=0 or x=-7
You might be interested in
Select all of the statements that are true about f(x) =
Nitella [24]

Answer:

3-4

Step-by-step explanation:

thats the answer because i need more points

4 0
3 years ago
When solving the equation 4(3x^2 +2)-9=8x^2+7. Emily wrote 4(3x + 2)=8x^2 + 16 as her first step. Which property justifies Emily
vfiekz [6]
Hello : 
4(3x² +2)-9=8x²+7 = <span>4(3x^2 +2)-9 +9 =8x²+7 +9 
                                = </span><span> 4(3x² + 2)=8x² + 16
</span><span>(State a reason why1) Addition Property of Equality)</span>
6 0
4 years ago
How can you write the equation for a linear function if you know only two ordered pairs for the function?
dedylja [7]

Answer:

See below

Step-by-step explanation:

We first have to understand the parts of a y=mx+b equation

y=mx+b

m: Is the slope

b: Is the y-intercept

x: is the x part of (x,y)

y: is the y part of(x,y)

So...

if we use an example ordered pair like (1,3)

and a slope of 2

We can plug everything into y=mx+b to get

1=2*3+b which simplifies to  b= -5

Now, you can use this concept to fill in the blanks below:  

Use the two ordered pairs to find the slope, (m).

Then substitute the slope, and (one set of ordered pairs) into y=mx+b to solve for (b).

6 0
2 years ago
Michelin Tires would like to estimate the average tire life of its Latitude Tour tire in terms of howmany miles it lasts. Assume
VARVARA [1.3K]

Answer:

6 samples

Step-by-step explanation:

Given :

Sample size, = n

Standard deviation, = 6000

Margin of Error = 2000

Confidence interval, α = 95%

Zcritical at 95% = 1.96

n = (Zcritical * σ) / margin of error

n = (1.96 * 6000) /2000

n = 11760 / 2000

n = 5.88

n = 6 samples

6 0
3 years ago
Amanda is reading a book that has 125 pages. she has read 12 pages a day for 4 days in a row. how many more pages does amanda ha
FinnZ [79.3K]
Total pages=125
Pages read in 1 day=12
Pages read in 4 days=4×12=48
Left pages to read=125-48=77 pages
7 0
3 years ago
Other questions:
  • Simplify the expression: 3/(7-i)
    7·1 answer
  • What are two inequalities for “at least 100” ??
    9·1 answer
  • Solve and write in interval notation.<br><br> x ≥ 2 and x &lt; -3
    9·1 answer
  • Do these 3 side lengths form a right triangle? (Yes or no question): 9 in, 12 in, 15 in
    5·2 answers
  • Jasmine ran 5 miles in 42 minutes. At what rate did she run?
    6·1 answer
  • PLEASE HELP I GIVE THANKS
    10·1 answer
  • DO NOT PAY MONEY FOR THIS SERVICE! SKETCHY EUROPEAN SCAM SIGHT!
    14·2 answers
  • 100% Meiling and Jackie are playing a game of chance with a six-sided number cube. The sides of the cube are numbered 1 to 6. Me
    15·2 answers
  • For the equation x-3y=12, what is x when y=8?​
    12·2 answers
  • Find the area of the patio
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!