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
Mamont248 [21]
3 years ago
9

An equation is shown

Mathematics
1 answer:
notka56 [123]3 years ago
3 0

Answer: The answer is A. n=11.

Step-by-step explanation: To find the value of n in the equation, you’ll need to isolate the variable by dividing each side by factors that don't contain the variable.

You might be interested in
Point-Slope Form Practice
Lana71 [14]

Answer:

y=-x-7

Step-by-step explanation:

Equation of straight line in point slope form is given as

y-y_1=m(x-x_1)

Here

m=-1 \ and \ (x_1, y_1)=(-2, -5)

Therefore,

y+5=-1(x+2)

y=-x-7

4 0
2 years ago
What is the value of b2 - 4ac for the following equation?<br><br> 2x2 + 3x = -1
andreyandreev [35.5K]
The value of b^2-4ac is known as the discriminant of a quadratic function, and can tell you how many roots exist of this function depending on what it is equal to.

Start by moving the -1 to the other side, as we need this function to equal zero.

2x^2 + 3x + 1 = 0

This is now the standard form ax^2 + bx + c = 0. Plug each value that corresponds into the discriminant equation.

b^2-4ac
(3)^2 - 4(2)(1)
9 - 8
1

The value of the discriminant is 1, meaning that two real roots exist for the function described.
7 0
3 years ago
Read 2 more answers
Suppose that prices of recently sold homes in one neighborhood have a mean of $265,000 with a standard deviation of $9300. Using
Hatshy [7]

Answer:

Range  = (237100, 292900)

Step-by-step explanation:

Using Chebyshevs Inequality:

P(|X - \mu | \le k \sigma )\ge 1  -\dfrac{1}{k^2}= 0.889

1  -\dfrac{1}{k^2}= 0.889

\dfrac{1}{k^2}= 1- 0.889

\dfrac{1}{k^2}=0.111

k = \sqrt{\dfrac{1}{0.111}}

k \simeq 3

Thus, 88.9% of the population is within 3 standard deviation of the mean with the Range = μ  ±  kσ

where;

μ = 265000

σ = 9300

Range = 265000  ±  3(9300)

Range = 265000  ± 27900

Range =   (265000 - 27900, 265000 + 27900)

Range  = (237100, 292900)

3 0
3 years ago
Below are the results of tossing a number cube 7times. Find the experimental probability of tossing an even number. 6 4 3 2 5 3
Daniel [21]
3/7 or 3:7 because you tossed the dice 7 times and got an even number 3 of those times.
7 0
3 years ago
Read 2 more answers
Kailey wrote 8,912,000 in scientific notation as 83.12*10 . Which statement best describes Kailey’s work?
Serjik [45]
What are the the statements??
3 0
3 years ago
Read 2 more answers
Other questions:
  • A) $0.01 or 0.05<br> B) 1.03 or 0.06<br> C) a or b
    7·2 answers
  • Use the discriminant to describe the roots of each equation. Then select the best description.
    10·1 answer
  • Please, I need help with this!!!
    5·2 answers
  • If a car is going 60 mph how far will it go in ana hour and a half
    14·1 answer
  • Which of the following is a factor of 7x^2 -12x-4?
    9·2 answers
  • The hypotenuse of a right triangle measures 14 cm and one of its legs measures 1 cm. Find the measure of the other leg. If neces
    13·1 answer
  • 15. A rectangle has a length of 2x - 1 and a width of 3x + 7. Find the perimeter of this rectangle.
    13·1 answer
  • Joshua texts 67 words in 4 minutes. How many words can he text per minute?
    10·2 answers
  • Free brainiest and 100 point so first person to answer what's 3+3
    12·2 answers
  • PLEASE HELP ASAP I NEED THIS TO PASS 20 POINTS 5 STARS
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!