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jeka57 [31]
3 years ago
5

Jess used

Mathematics
1 answer:
zmey [24]3 years ago
6 0

Answer:

Step-by-step explanation:

C

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Help
zalisa [80]
<h2>♪Answer : </h2>

Ingat rumus determinan fungsi kuadrat yaitu :

\longmapsto\boxed{\sf{D = b^2 - 4ac}}

Maka, Kita kembali jawab soalnya.

⏩Nomor (1) :

»8x² + 7x + 10 = 0

Didapatkan nilai² a, b, dan c yaitu :

  • a = 8 | b = 7 | c = 10

Maka, nilai determinannya adalah

  • D = b² - 4ac
  • D = 7² - 4(8)(10)
  • D = 49 - 4(80)
  • D = 49 - 320
  • D = -271✅

\:

⏩Nomor (2) ;

»2x² + 10x + 10 = 5

»2x² + 10x + 10 - 5 = 0

»2x² + 10x + 5 = 0

Didapatkan nilai² a, b, dan c yaitu :

  • a = 2 | b = 10 | c = 5

Maka, nilai determinannya adalah

  • D = b² - 4ac
  • D = 10² - 4(2)(5)
  • D = 100 - 4(10)
  • D = 100 - 40
  • D = 60✅
6 0
2 years ago
Read 2 more answers
Angle A and Angle B are supplementary angles. If the measure of angle A = (6x + 10)° and the measure of angle B = (4x +30), then
omeli [17]

Answer:

86°

Step-by-step explanation:

Given:

 A = (6x + 10)°

 B  =  (4x +30)°

Two angles are supplementary if they sum up to 180° ;

 A + B  = 180°  

 Now insert the parameters and solve;

  6x + 10 + 4x +30 = 180

      10x + 40  = 180

       10x  = 140

           x = 14

So;

    B  =  (4x +30)°  = 4(14) + 30  = 86°

8 0
4 years ago
The sum of 3 times a number and 5 is 2 times the number plus 15. what is half the number?
saul85 [17]
Define x:
Let the sum be x 

Construct the equation:
<span>The sum of 3 times a number and 5 is 2 times the number plus 15.
</span>→ 3x + 5 = 2x + 15

Solve x:
3x + 5 = 2x + 15         | Equation
x + 5 = 15                   | Take away 2x from both sides
x = 10                         | Take away 5 from both sides

Answer: The number is 10.
5 0
3 years ago
What is 78.290 minus 55.779
Paha777 [63]
The answer is 22.511
7 0
3 years ago
Read 2 more answers
Find the slope or the line
Korolek [52]
Slope is -2 i belive
5 0
4 years ago
Read 2 more answers
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