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
Elza [17]
2 years ago
5

Find the value of 2x -1 when x+6=-2

Mathematics
2 answers:
IceJOKER [234]2 years ago
8 0

Answer:

-17

Step-by-step explanation:

x + 6 = -2, subtract the 6 from -2

x = -2 - 6

x = -8

2x - 1 = ? plug in -8

2(-8) - 1 = ?

-16 - 1 = -17

so, 2(-8) - 1 = -17

Anna [14]2 years ago
3 0

Answer:

-17

Step-by-step explanation:

Let's first simplify x+6= -2.

x=-6-2

x= -8

Plug in x= -8.

2(-8)= -16

-16-1= -17

Hoped this helped.

You might be interested in
In triangle ABC find b to the nearest degree given a=7 b=10 and c is a right triangle
eimsori [14]

Answer:

∠B =55.00797173^{\circ}

Step-by-step explanation:

Given : a=7 b=10 and C is a right triangle

solution :

refer the attached figure .

Since ΔACB is right angled triangle so we will use trigonometric ratios .

tan\theta=\frac{perpendicular}{base}

Perpendicular = b =10

Base=a=7

Putting value in formula:

tanB=\frac{10}{7}

tanB=1.42857

B=tan^{-1}1.42857

B=55.00797173^{\circ}

Thus ∠B =55.00797173^{\circ}

4 0
2 years ago
Read 2 more answers
I NEED HELP ASAP PLEASE!!!!
Firdavs [7]

Answer:

Step-by-step explanation:

3 0
2 years ago
What are the points of trisection of the segment with endpoints (0,0) and (27,27) ?
stiks02 [169]

Given:

Endpoints of a segment are (0,0) and (27,27).

To find:

The points of trisection of the segment.

Solution:

Points of trisection means 2 points between the segment which divide the segment in 3 equal parts.

First point divide the segment in 1:2 and second point divide the segment in 2:1.

Section formula: If a point divides a line segment in m:n, then

Point=\left(\dfrac{mx_2+nx_1}{m+n},\dfrac{my_2+ny_1}{m+n}\right)

Using section formula, the coordinates of first point are

Point\ 1=\left(\dfrac{1(27)+2(0)}{1+2},\dfrac{1(27)+2(0)}{1+2}\right)

Point\ 1=\left(\dfrac{27}{3},\dfrac{27}{3}\right)

Point\ 1=\left(9,9\right)

Using section formula, the coordinates of first point are

Point\ 2=\left(\dfrac{2(27)+1(0)}{2+1},\dfrac{2(27)+1(0)}{2+1}\right)

Point\ 2=\left(\dfrac{54}{3},\dfrac{54}{3}\right)

Point\ 2=\left(18,18\right)

Therefore, the points of trisection of the segment are (9,9) and (18,18).

6 0
3 years ago
HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPMEEEEEEEEEEEEEEEEEEEe
aleksandrvk [35]

Answer:

200

Step-by-step explanation:

8 0
2 years ago
Consider the function f(x) = x^3 - 7x^2 - 2x + 14
mars1129 [50]

Answer:

There are 3 zeros, which are:

x=7,\:x=-\sqrt{2},\:x=\sqrt{2}

Step-by-step explanation:

Given the function

f\left(x\right)\:=\:x^3\:-\:7x^2\:-\:2x\:+\:14

To get the zeros of f(x), set y or f(x) =0

so

0=x^3-7x^2-2x+14

as

x^3\:-\:7x^2\:-\:2x\:+\:14=\left(x-7\right)\left(x+\sqrt{2}\right)\left(x-\sqrt{2}\right)

so

\left(x-7\right)\left(x+\sqrt{2}\right)\left(x-\sqrt{2}\right)=0

Using the zero factor principle:

\mathrm{ \:If}\:ab=0\:\mathrm{then}\:a=0\:\mathrm{or}\:b=0\:\left(\mathrm{or\:both}\:a=0\:\mathrm{and}\:b=0\right)

so

x-7=0\quad \mathrm{or}\quad \:x+\sqrt{2}=0\quad \mathrm{or}\quad \:x-\sqrt{2}=0

solving

x-7=0

  • x=7

x+\sqrt{2}=0

  • x=-\sqrt{2}

x-\sqrt{2}=0

  • x=\sqrt{2}

Therefore, there are 3 zeros, which are:

x=7,\:x=-\sqrt{2},\:x=\sqrt{2}

8 0
2 years ago
Other questions:
  • You purchase a new guitar and take out a loan for $450. You have 18 equal monthly payments of $28 each. What is the simple inter
    13·1 answer
  • Which of the following are solutions to the equation below x^2+11x+30=0
    14·1 answer
  • What is 12 cats to 15 dogs simplest form
    9·1 answer
  • Use the exponential growth model, A = A0 e^kt to show that the time is takes a population to double (to frow from A0 to 2 A0) is
    15·1 answer
  • Which expression converts 100 inches per minute to feet per minute?
    8·2 answers
  • PLS HELP ME!!!! use the properties of exponents to simplify the expression
    12·2 answers
  • Gr) = 25 – 31<br> g(4) =
    10·1 answer
  • Given f(x) = 11 - 7x, evaluate f(-2).
    8·1 answer
  • Seventh grade
    12·2 answers
  • Find value of the variables .
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!