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
Yuliya22 [10]
3 years ago
15

An equation and the first step in its solution are shown below.

Mathematics
1 answer:
nadya68 [22]3 years ago
3 0

Answer: A

Step-by-step explanation:

To get the third term in completing the square, take half the middle term and square it. Half of 6 is 3, and 3^2 is 9.

You might be interested in
1. You decide to invest $100,000 in a program that is guarabteed to grow by 2.5% for each of the next 5 years. At the end of the
ozzi

Answer:

$113,140.821

Step-by-step explanation:

The <em>growth of an investment</em> is given by P(1+r)^{n} where P is the principal, r is the interest rate, and n is the number of periods. So

Future value = 100,000 ( 1+0.025)^{5}

Future value=$113,140.821 as the amount after 5 years.

3 0
3 years ago
This table shows the size, in acres, of four large water parks.
andrey2020 [161]
First of all, for median, <em>list the numbers in order.</em>

60, 60, 66, 70

If there are an odd number of numbers, the median is the number in the middle.

If there are an even number of numbers, the median is the average(mean) of the two numbers closest to the middle.

Average of 60 and 66:
60+66 = 126
126/2 = 63

Median: 63
7 0
3 years ago
Read 2 more answers
Solve -6 &lt; x -2. Graph the solution.
Brums [2.3K]

Answer:

x>-4

Step-by-step explanation:

if:-6<x-2

could be written as:x-2>-6

(collect like terms)

(sign changes)

x>-6+2

x>-4

6 0
3 years ago
A gas cylinder contains 1.00 mol He, 1.90 mol Ne, and 1.10 mol Ar. If the total pressure in the cylinder is 2250 mmHg, what is t
Tcecarenko [31]

Answer:

P_he = 562.5 mmHg

P_ne = 1068.75 mmHg

P_ar = 618.75 mmHg

Step-by-step explanation:

Formula for partial pressure is;

Partial pressure = mole fraction × total pressure

Mole fraction of Helium(He); x_he= 1/(1 + 1.9 + 1.1) = 1/4 = 0.25

Mole fraction of Neon(Ne); x_ne = 1.9/(1 + 1.9 + 1.1) = 1.9/4 = 0.475

Mole fraction of argon; x_ar = 1.1/(1 + 1.9 + 1.1) = 1.1/4 = 0.275

Thus;

Partial pressure of He;

P_he = 0.25 × 2250

P_he = 562.5 mmHg

Partial pressure of Ne;

P_ne = 0.475 × 2250

P_ne = 1068.75 mmHg

Partial pressure of Ar;

P_ar = 0.275 × 2250

P_ar = 618.75 mmHg

5 0
3 years ago
Graph the function -2x+5y=10
loris [4]
An equation of the form ax+by+c=0, where x, y are variable, and a, b, c are numbers, is called a "linear equation"

the reason we call it linear, is that all solutions (x, y) to this equation, when plotted in the x-y axis, form a line.

To draw this line, 2 points are enough, that is 2 solutions (x, y) of the equation.

-------------------------------------------------------------------------------------------------

-2x+5y-10=0 is a linear equation (a=-2, b=5, c=-10)


to find 2 solutions, we set x or y any value we want, and solve for the other

for example: 

let x=0, 

then

-2x+5y-10=0 becomes 5y-10=0, so y=2

this gives us the solution (0, 2)

another example; set y=0

then -2x+5y-10=0 becomes -2x-10=0; -2x=10 so x=-5

thus another solution is (-5, 0)



Draw these 2 points, and join them with a line, as shown in the figure.

6 0
3 years ago
Other questions:
  • AB and BC form a right angle at their point of intersection, B. If the coordinates of A and B are (14, -1) and (2, 1), respectiv
    13·1 answer
  • Use the quadratic formula to solve the equation. If necessary, round to the nearest hundredth. −5y^2 + 2y = −2
    14·1 answer
  • Describe how the graph of y= x2 can be transformed to the graph of the given equation.
    10·1 answer
  • Helppppppp please and thanks
    8·1 answer
  • 2/3 (5t-3)=38 <br>Steps to solve..?
    8·2 answers
  • Xavier drove his car 70 miles with 7 gallons of fuel. How many more miles can he drive if he added 1 gallon of fuel?
    14·2 answers
  • Hello Everyone! I need help asap whenever someone can it'll be really helpful
    12·1 answer
  • Radius:5<br>cm<br>Diameter:<br>Circumference:<br>Area:​
    7·1 answer
  • Help pleaseeeeee nowwwwww
    13·1 answer
  • How many calories will Jacob burn in 1 minute while roller-skating????<br>fast plz
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!