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Pani-rosa [81]
2 years ago
7

Solve the equation 15p2 + 7p − 4 = 0 by completing the square.

Mathematics
1 answer:
natulia [17]2 years ago
4 0

Answer:

p=0 or p=-7/15

Step-by-step explanation:

15p2+7p=0

p(15p+7)=0

p=0 or 15p+7=0

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Where are the x-intercept(s) of the graph?
lapo4ka [179]

Answer:

The answer would be B.

Step-by-step explanation:

The X-intercept is simply the point in which the line crosses the x axis, and the point where it crosses or touches is 0, 0

6 0
3 years ago
8 times of the eight term of an arithmetic progression is equal to 12 times of the twelfth term. find its first term if the comm
Ilya [14]

Answer:

a₁ = 38

Step-by-step explanation:

Given AP, where:

  • 8a₈ = 12a₁₂
  • d = -2,
  • a₁ = ?

=============

<h3>Solution</h3>

aₙ = a₁ + (n-1)d

  • a₈ = a₁ + 7d = a₁ + 7*(-2) = a₁ - 14
  • a₁₂ = a₁ + 11d = a₁ + 11*(-2) = a₁ - 22

8a₈ = 12a₁₂

  • 8(a₁ - 14) = 12(a₁ - 22)
  • 2(a₁ - 14) = 3(a₁ - 22)
  • 2a₁ - 28 = 3a₁ - 66
  • 3a₁ - 2a₁ = -28 + 66
  • a₁ = 38
6 0
3 years ago
Forty per cent of all those who applied for the job had experience. If 80 people had
Zielflug [23.3K]

Answer:

total people = X = 200

Step-by-step explanation:

total people = X = 200

People having experience = 80

Percent haing experience = 40 % = 40 / 100

40/ 100  x X = 80

x= 80  x 100 / 40 = 200

I hope im right!!

8 0
3 years ago
2. Ali is collecting signatures for a petition,
swat32

Step-by-step explanation:

Since the options are not clear enough, please kindly see the attached file for more explanation

7 0
3 years ago
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This equation in numbers:
(-8x)^6 • (4x)^2
(262144•x^6) • (16x^2)
4,194,304x^8
4 0
3 years ago
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