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
Nataly [62]
3 years ago
11

8 The square of a number is 12 less than 7 times the number. What is the number?

Mathematics
1 answer:
Alex3 years ago
8 0
7x^2 - 12 = 0
7x^2 = 12 | : 7
x^2 = 12/7 | sqrt
x = sqrt(12/7)
x = sqrt(84) / 7
x = 2sqrt(21) / 7
You might be interested in
Can someone answer B please???
lbvjy [14]
A)

150 were surveyed, possible outcomes, and 132 said they prefer dogs, favorable outcomes,   132/150 or 22/25 or 0.88, now 0.88 * 100 is just 88, namely 88% is the probability.

b)

since we know is 88%, what is 88% of 100?  (88/100) * 100, 0.88 * 100, or just 88 students.

c)

18/150 or 3/25 or 0.12 namely 12%,

what's 12% of 300?  (12/100) * 300, or 0.12 * 300, so just 36 students.
8 0
3 years ago
17. Atlanta, Georgia, receives an average of 27 inches of precipitation per year, and there has been 9 inches so far this year.
kirill115 [55]

Answer:

  9 + p ≤ 27; p ≤ 18

Step-by-step explanation:

"At or below" means "less than or equal to." Only one answer choice incorporatest that symbol into the inequality expression — the one shown above.

5 0
2 years ago
Read 2 more answers
7/9 in simplest form
ozzi
Find the GCD (or HCF) of numerator and denominator
GCD of 7 and 9 is 1Divide both the numerator and denominator by the GCD
(7/1)/(9/1)Reduced fraction: 7/9
8 0
3 years ago
Read 2 more answers
Help please! <br>using quadratic formula <br>round ti nearest hundred ​
Lera25 [3.4K]

Answer:

x = 0.19 or x = -0.76

Step-by-step explanation:

Equation: 7²-4x = 2

reordering the equation,

7x²-4x-2 = 0

Applying,

x = [-b±√(b²-4ac)]/2a..................... Equation 1

From the question,

Given: a = 7, b = -4, c = -2

Substitute these values into equation 1

x = [-4±√(-4²-(2×7×-2)]/(2×7)

x = [-4±√(16+28)]/14

x = (-4±√44)/14

Either

x = (-4+√44)/14

x = (-4+6.63)/14

x = 2.63/14

x = 0.19

or

x = (-4-√44)/14

x = (-4-6.63)/14

x = -10.63/14

x = -0.76

3 0
2 years ago
Which equation could have been used to create this graph?
andrew11 [14]
The answer is A hope this helps 
4 0
3 years ago
Other questions:
  • In a tank of water, a can of regular soda will sink to the bottom, but can a diet soda of diet soda of the same size will float
    13·2 answers
  • Whats parallel to y=-3/4x-5
    8·1 answer
  • At age 16, Estelle weighed 110lbs.
    9·1 answer
  • Find the slope of the line that passes through each pair of points.
    14·1 answer
  • Hello! I don’t really understand this so please help ASAP!!! Thank you!
    12·1 answer
  • The stock market dropped 220 points on Monday. It lost another 48 points on Tuesday, and on Wednesday it gained 96 points. What
    7·1 answer
  • Which is the graph of x≥−5?
    8·2 answers
  • Which choices are equivalent to the fraction below? Check all that apply.
    12·2 answers
  • If we consider the simple random sampling process as an experiment, the sample mean is a. a random variable. b. always zero. c.
    15·1 answer
  • hail 0.5 inch deep and weighing 1800 pounds covers a roof. the hails weight varies directly with its depth. write an equation th
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!