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
masha68 [24]
3 years ago
6

if -2 is a root of the equation 3x2 +7x + p = 0, find the values of k for which the roots of the equation x2 + k(4x + k - 1) + p

= 0 are equal.
Mathematics
1 answer:
goblinko [34]3 years ago
4 0

Answer:

first 0ne

Step-by-step explanation:

You might be interested in
I keep putting in the formula but I keep getting the answer wrong​
Advocard [28]

Answer:

314 in²  (nearest whole number)

Step-by-step explanation:

<u>Radius of a regular polygon</u>: The distance from the <u>center</u> of the polygon to any vertex.  The radius of a hexagon is equal to the length of one side.

Therefore, from inspection of the given diagram:

  • radius = 11 in  ⇒  side length = 11 in

To find the area of a regular polygon, we first need to calculate the apothem.   The <u>apothem</u> is the line drawn from the center of the polygon to the midpoint of one of its sides.

\textsf{Length of apothem (a)}=\dfrac{s}{2 \tan\left(\frac{180^{\circ}}{n}\right)}

where:

  • s = length of one side
  • n = number of sides

Given:

  • s = 11 in
  • n = 6

Substitute the given values into the formula and solve for a:

\implies \textsf{a}=\dfrac{11}{2 \tan\left(\frac{180^{\circ}}{6}\right)}=\dfrac{11\sqrt{3}}{2}

<u>Area of a Regular Polygon</u>

\textsf{A}=\dfrac{n\:s\:a}{2}

where:

  • n = number of sides
  • s = length of one side
  • a = apothem

Given:

  • n = 6
  • s = 11
  • \textsf{a}=\dfrac{11\sqrt{3}}{2}

Substitute the given values into the formula and solve for A:

\implies \sf A=\dfrac{6 \cdot 11 \cdot \dfrac{11\sqrt{3}}{2}}{2}

\implies \sf A=314.3672216...

\implies \sf A=314\:\:in^2\:\:(nearest\:whole\:number)

8 0
2 years ago
URGENT WILL GIVE BRAINLIEST
ExtremeBDS [4]

Answer:

40

Step-by-step explanation:

3 0
2 years ago
128/5 square root<br> It's for test corrections
Alchen [17]
The square root of 128/5 is 5.059644
Hope this helped!
8 0
3 years ago
Can someone explain how to do this
n200080 [17]
You need to divide the miles by the hours to et the Average speed.
M divided by h = s
Because to get the mph (miles per hour) you multiply the average speed to the hours.
S•h=mph
8 0
3 years ago
Im having trouble on this
Degger [83]

Answer: girl no

Step-by-step explanation:

3 0
2 years ago
Other questions:
  • Which of the polygons listed below have at least four sides? Triangles Quadrilaterals Pentagons Hexagons Heptagons
    9·1 answer
  • Sarah cut off 1/8 of a 48-inch piece of ribbon. Jane cut off 1/9 of a 36-inch piece of ribbon. Whose piece is longer? How much l
    13·1 answer
  • Solve this equation 3x + 1 = 10
    15·1 answer
  • Original price is $29.99 markdown is 33 1/3%
    8·1 answer
  • A freight train from city A to city B and a passenger train from city B to city A left the cities at the same time, at 10:00 AM,
    15·1 answer
  • Consider the reduction of the complex figure with a scale factor of what is the area of the reduced figure?
    7·1 answer
  • The sum of measures of alternate interior angles of two parallel lines is 210°. What are the measures of these angles?
    9·1 answer
  • 6) Use the distributive property to expand the following expression: 4(6 + x)
    8·1 answer
  • How simplify -8/3 devided by -2/6
    15·2 answers
  • 9 ft19 ftPlease refer to the rounding rules in the instructions.Circumference of the base = 59.5feetArea of the base = 254.3squa
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!