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masha68 [24]
2 years ago
10

Help me please a girl neeeds help

Mathematics
1 answer:
konstantin123 [22]2 years ago
6 0

Answer: B) reflection over the y-axis

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Evaluate the indicated function for f(x)=x^2-7 and g(x) =x-2
enyata [817]

Answer:

f(g(x))=(x-2)^2 - 7

(x-2)(x-2) - 7

x^2-2x-2x+4-7

x^2-4x-3

g(f(x))=x^2-2-7

x^2-9

(x+3)(x-3)

Step-by-step explanation:

  1. to solve for f(x), replace x with the g(x).
  2. since we don't multiply a bracket with the negative or the positive signs to the
  3. exponent, you have to factor into two binomials.
  4. use the FOIL method to eliminate the brackets.
  5. add like-terms

  • to find g(x), replace x with the f(x).
  • add like-terms
  • since there's difference of square, factor them into two binomials
7 0
3 years ago
Mr.Roshan will buy 12 1/2 pounds Beef for a cookout.The price for the first 3 pounds of beef is $4.99 per pound. After that,The
vagabundo [1.1K]

Answer:

  $57.63

Step-by-step explanation:

For x > 3, the price in dollars Mr. Roshan will pay for x pounds of beef is ...

  cost = 4.99×3 +4.49(x -3) = 3(4.99 -4.49) +4.49x

  cost = 1.50 +4.49x

Then for x = 12.5 pounds, the cost is ...

  cost = 1.50 +4.49×12.5 = 1.50 +56.13

  cost = 57.63

Mr. Roshan will pay $57.63 for 12.5 pounds of beef.

5 0
3 years ago
Solve for f please :)
kkurt [141]
The answer is A) i think

6 0
3 years ago
Please help
JulsSmile [24]

Answer:

correct

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
17 points if you know. Help please
vovangra [49]

Answer:

Step-by-step explanation:

Angles 153 and QRP are straight angles, and thus Angle QRP is

180 - 153, or 27 degrees.

The interior angles of the triangle must sum up to 180 degrees:

27 + (3y + 5) + (2y - 7) = 180.

combining like terms, we get:

5y - 25 = 180, or 5y = 155, or y = 31

Then Angle Q is 3(31) + 5, or 93

Angle P is 2(31) - 7, or 55, and

Angle QRP is 27 degrees (found earlier).

6 0
2 years ago
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