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NARA [144]
4 years ago
15

F(x) = x^2-3x + 7. find f(-1)

Mathematics
1 answer:
Illusion [34]4 years ago
8 0

Answer:

f(x)= x^2-3x+7

(-1)^2-3(-1)+7

1+3+7

11

Step-by-step explanation:

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1. The standard form of a quadratic equation is​
amm1812

Answer:

ax^2+bx+c=0

Step-by-step explanation:

The standard form of quadratic equation is ax^2+bx+c=0 where a,b and c are real numbers and a ≠ 0.

6 0
3 years ago
Rectangle ABCDABCDA, B, C, D is graphed in the coordinate plane. The following are the vertices of the rectangle: A(-8, 3)A(−8,3
Andru [333]

9514 1404 393

Answer:

  15 squre units

Step-by-step explanation:

The area of the rectangle is the product of its length and width. The length is AB = 5 units; the width is BC = 3 units. Then the area is ...

  A = LW

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The area of rectangle ABCD is 15 square units.

6 0
3 years ago
Solve 5x²+9x-12=0 by factoring
asambeis [7]

Answer:

  x = -3, 4/5

Step-by-step explanation:

To factor the equation, you need to find factors of (5)(-12) that have a sum of (+9).

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The factors 15 and -4 have a sum of 9, so we can factor the equation as ...

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  5x(x +3) -4(x +3) = 0  . . . .  factor pairs of terms

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The solutions are the values of x that make these factors zero:

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The solutions are x = -3 or 4/5.

5 0
4 years ago
What is the answer to this math problem -4.3g=25.8
SVETLANKA909090 [29]
You have to separate the coefficient, "-4.3" from the variable "g', by using the inverse operation then doing it to the other side. You would divide 25.8 by -4.3 to get -6 <--Answer
3 0
3 years ago
What is the sum of 3/7, 4/5, and 2/3 rounded to two decimal places
bagirrra123 [75]
Hello!!

Total = 3/7 + 4/5 + 2/3

         = 0.428571429 + 0.8 + 0.66666667

         = 199/105
 
         = 1.89524.....

         ≈ 1.90 (rounded to two decimal places)

Good luck :)
3 0
3 years ago
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