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diamong [38]
4 years ago
14

Given the following functions, evaluate f×g(7)

Mathematics
1 answer:
lidiya [134]4 years ago
3 0

0

evaluate g(7) by substituting x = 7 into g(x

g(7) = (49-35-10)/2 = 4/2 = 2

now substitute x = 2 into f(x)

f(2) = √(4 - 48 + 144) = √0 = 0

(f ○ g)(7) = 0


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What is f(5) for the function f(x) = 6x + 1?
Likurg_2 [28]

Answer:

31

Step-by-step explanation:

plug in 5 for x

6(5)+1

30+1

31

7 0
3 years ago
3x-2y=7<br>-x+3y=-7<br>What is the simultaneous answer?<br>​
charle [14.2K]

Answer:

x = 5, Y = 4

Step-by-step explanation:

3x -2y = 7

-3x +9y = 21. (multiple the whole thing by 3 to get the xs to cancel)

7y = 28

y = 4

substitute y to find x

3x - 2(4) = 7

3x -8 = 7

3x = 15

x = 5

3 0
3 years ago
What is the missing value to the equation -3x + 7y = 5x + 2y
Rainbow [258]

Answer:

x = 0

Step-by-step explanation:simplified is 8x-5y=0

5 0
4 years ago
A parabola is defined by the equation x2 = 3/4 y. In which direction will the parabola open?
TEA [102]
The equation of parabola is x^2=\dfrac{3}{4}y. 
The canonical equation of parabola is y^2=2p x and this parabola has branches that go in positive direction of x-axis.

Since in your equation x is changed to y and y to x, then the <span>branches of the parabola go in positive y-axis direction, the vertex is placed at the origin. 
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8 0
4 years ago
The area of a square photo frame is 256 cm'. find the perimeter of the photo frame.
Flura [38]

Perimeter of the photo frame is 64 cm.

According to the question

Area of a square photo frame is 256 cm2.

The area of a square is equal to the square of the length of its side and the perimeter of the square is 4 times the length of its side.

Area of the square = side × side = a × a

a^{2} = 256

Side(a) = \sqrt{256} = 16

Side(a) = 16

Perimeter of the photo frame:

Formula for perimeter of a square:

Perimeter p = 4a

p = 4 × 16

p = 64

Perimeter of the photo frame is 64 cm.

Find out more information about perimeter here

brainly.com/question/11495285

#SPJ4

5 0
2 years ago
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