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 help me
Natalka [10]

Answer:

it's c

Step-by-step explanation:

3 0
3 years ago
(a) (4,4) is a point on a locus whose equation is y2 = kx. Show that (16,8) is another point on the locus.
Vlad [161]

Step-by-step explanation:

plug the coordinate points into the equations and solve for the remaining variable.

b) (2,3) - 5(2) + b(3) = 16

10 + 3b = 16. 3b= 6. b = 2

(0,8) - 5(0) + 2(8) = 16. 0+ 16 = 16. ☆

a) (4,4) assume based on results you meant y squared. (y^2)

(4)^2 = 4k. 16 = 4k. k = 4

(8)^2 = 4(16). 64 = 64. ☆

6 0
3 years ago
Read 2 more answers
2. If x=2, y=3 find<br>value of <br>x²-5y+2​
Damm [24]

Answer:

-9

Step-by-step explanation:

Substitute the give values into the correct place in the equation.

Since x=2, y=3,

Place "2" in the x of the equation, and "3" into the y of the equation.

x²-5y+2​

= 2² - 5(3) + 2

= 4 - 15 + 2

= -9

5 0
3 years ago
Read 2 more answers
Solve if you solve it you get 12 points<br> (6m−7)⋅4
erma4kov [3.2K]

Answer:

24m-28

Step-by-step explanation:

4*6m=24m

-7*4=-28

24m -28

8 0
2 years ago
Read 2 more answers
Which is greater -3 or -1/3 ?​
GenaCL600 [577]

Answer:

<u>-1/3</u>

Step-by-step explanation:

because it is a negative number and closer to zero than -3 is making it greater, becuase it is closer to a positive number.

6 0
2 years ago
Read 2 more answers
Other questions:
  • 5. A biologist is measuring the lengths of frogs in a certain location. The lengths
    14·1 answer
  • The height of a box is 3 inches. The length is three inches more than the width. Find the width if the volume is 390. Select one
    7·1 answer
  • Find the reduced echelon form of [1, 2, 4; 0, 3, 6; 0, 2, 4]
    8·1 answer
  • Compute difference and simplify 4-2/9
    13·1 answer
  • Can someone please help me out?
    6·1 answer
  • Given f(x) = x^2 + 2 and g(x) = 2 – x, find a simplified expression for f(2x) + g(3x).
    14·1 answer
  • What is an area model of 15 times 11
    14·1 answer
  • 9 1/3 minus 3 1/4 as a mixed number
    12·1 answer
  • Ling must spend no more than $40.00 on decorations for a party. She has spent $10.00 on streamers and wants to buy bags of ballo
    5·1 answer
  • A triangle has sides with lengths of 51 miles,68 miles and 85 miles. Is it a right triangle.?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!