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
Shtirlitz [24]
3 years ago
12

X²-2x=8 what is the answer

Mathematics
1 answer:
katrin2010 [14]3 years ago
6 0

Answer:

X=4,  -2

Step-by-step explanation:

Check attachment

You might be interested in
How many ducks can fit in a duck pond if there are 24 ducks and 10 lakes
kiruha [24]
You can fit 2 in each or 3 can have some in it
6 0
3 years ago
What is the approximate area of the shaded sector in the circle shown below
saul85 [17]

Answer:

D) 191

Step-by-step explanation:

The entire circle is 254.5, calculated by using this formula

A=\pi r^{2} \\

Only 3/4 of the circle is needed for the area, however, so you multiply your area by 0.75

3 0
2 years ago
Through (4,-4) ; perpendicular to 6y=x-12
BARSIC [14]

y = mx + b

m = slope and b = y-intercept


We can arrange 6y = x - 12 in the form of y = mx + b

                  6y = x - 12

                    y = 1/6(x) - 2

Slope of y = 1/6(x) - 2 is 1/6. Taking the negative reciprocal of the slope we get the slope for the perpendicular line.

Negative reciprocal of 1/6 is -6.

The equation for the perpendicular line is

                  y = -6x + b

To find b we can plug in the x and y values of (4,-4) into it since it passes through those coordinates

                -4 = -6(4) + b

                 b = -4 + 6(4)

                 b = -4 + 24

                 b = 20

So the equation for the perpendicular line is y = -6x + 20

3 0
3 years ago
Solve for x.
Ostrovityanka [42]

Answer:

C.  3, -7

Step-by-step explanation:

x^2 +4x-21 =0

Factor

What 2 numbers multiply to -21 and add to 4

7*-3 = -21

7-3 = 4

(x+7) (x-3) =0

Using the zero product property

x+7 =0       x-3=0

x+7-7=0-7     x-3+3=0+3

x = -7            x=3

3 0
2 years ago
Read 2 more answers
Answer ASAP!
valentinak56 [21]

Answer:

A and D

Step-by-step explanation:

Since tangent is opposite/adjacent,

Tan 40 in this case would be x/3.8 (i used x because we don't know what the value is)

So, you set it up as an algebra problem

Tan40 = x/3.8

Multiply both sides by 3.8

3.8tan40 = x, Option A

And then, angle E is 50 degrees

So tan 50 = 3.8/x

Multiply both sides by x

tan50x = 3.8

Divide both sides by tan50

x= 3.8/tan50

So, A and D are both correct

3 0
1 year ago
Other questions:
  • What equation has the same solution as x^2-6x-14=0 ?
    10·1 answer
  • Please solve this with the steps.
    15·2 answers
  • Plot the approximate values of and on a number line and determine which of the following statements are correct.
    9·1 answer
  • What is /frac{3}{125} of 1875t
    7·1 answer
  • A coat in London costs £60. The same coat in Dublin costs €105.60. The exchange rate is £1 = €1.65. In which city is the coat ch
    6·1 answer
  • The most efficient way to administer a drug to its intended target site is to administer it intravenously (directly to the blood
    12·1 answer
  • How many faces, edges, and vertices does a sphere have
    14·2 answers
  • The miles driven in a car going 65
    15·2 answers
  • A nutritional consulting company is trying to find what percentage of the population of a town is overweight. The marketing depa
    5·1 answer
  • Solve for x. write the property that justifies each step<br> -5(6x+2)=10x-15
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!