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
ElenaW [278]
3 years ago
8

X^2 + 18x + c = 25 +c

Mathematics
1 answer:
svet-max [94.6K]3 years ago
7 0
Rearrange to: x^2 + 18x - 25 = 0
Then factorise (I like to do it by completing the square):
(x + 9)^2 -81 -25 = 0
(x + 9)^2 = 106
x + 9 = sqrt(106)
The sol'ns are:
x = -9 + and - sqrt(106)
You might be interested in
7
kipiarov [429]

Hope it a right answer for you

8 0
3 years ago
Read 2 more answers
Which is true about the area of the parallelogram?
Colt1911 [192]

Answer:

area is 2 dimensional lika a carpet and a area rug. a parallelogram 4 sided-shape formed by 2 pairs of parrel lines. opposite sides are equal in lenght and opposite are equal in measure. to find the area of a parallegram, multiply the by the base by the height

Explanation:

Pls make me as brainliest and add as my friend i will check it.

3 0
3 years ago
Read 2 more answers
A goods train runs at the speed of 72 kmph and crosses a 250 m long platform in 26 seconds. What is the length of the goods trai
Flauer [41]

The length of the goods train is 270 meters.

Given that, a goods train runs at the speed of 72 kmph and crosses a 250 m long platform in 26 seconds.

<h3>What is the distance formula with speed and time?</h3>

Speed is defined as the rate at which an object moves from one place to another in a given interval of time. It is a scalar quantity as it defines only the magnitude not the directions of an object moving. The S.I. unit of speed is m/s.

The speed of a moving object can be calculated as Speed = Distance / Time.

Now, to convert km/h to m/sec multiply the measure by 5/18.

That is, 72 × 5/18 = 20 m/sec

Let the length of the train be x metres.

So, then (x+250) / 26 = 20

⇒x+250=520

⇒x=270 meters

Therefore, the length of the goods train is 270 meters.

To learn more about the speed visit:

brainly.com/question/7359669.

#SPJ4

5 0
1 year ago
Passes through (8,7) and (0,0)
quester [9]

Answer:

6,3

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
What is two thirds divided by seven
Westkost [7]

Answer:

\frac{2}{21} i think

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
Other questions:
  • Question 11 options: the lengths of human pregnancies are normally distributed with a mean of 268 days and a standard deviation
    7·1 answer
  • Can you guys plz help me???? p.s can u show the work
    7·1 answer
  • At the beginning of the recent period, there were 900 units of product in a department, 35% completed. these units were finished
    14·1 answer
  • - 5 choose vanilla
    11·1 answer
  • 5.solve for x. 6.solve for x.
    6·1 answer
  • Please help me help my daughter with question number 9
    11·1 answer
  • The differential equation dy dx equals the quotient of the quantity x minus 2 and y minus 2.
    5·1 answer
  • Alexis bought 1_2 pound of grapes. How many ounces of grapes did she buy?
    5·1 answer
  • Is 2 divided by 1/4 greater than 1
    9·1 answer
  • Azizah got 1 for the slope of the line through points (1, 2) and
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!