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Liono4ka [1.6K]
3 years ago
8

F(x) = x/ (x^2 + 4x - 21) how do i find the domain and range?

Mathematics
1 answer:
Igoryamba3 years ago
4 0

Answer:

Step-by-step explanation:

F(x) = x/ (x^2 + 4x - 21)

F(x)= x / (x - 3)(x + 7)

When x = 3 and x = -7 the denominator is zero  so there are no values of the function corresponding to these values of x.

The domain is all Real x except x = -7 and x = 3.

The range is all values of f(x) except for those values when x = -7 and x = 3.

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Andrew makes 11 saves in 2 soccer games. He made 8 saves in the first game. How many saves did Andrew make in the second game? M
Vitek1552 [10]

Answer:

3 saves in the second game.

Step-by-step explanation:

The total number of saves in both the games is 11.

The number of saves in first games is 8.

The number of saves in second game = Total number of saves - Number of saves in first game

The number of saves in second game = 11 - 8

Therefore the number of saves in the second game = 3 saves

6 0
3 years ago
What is the area of the trapezoid if the bottom base is 4x-5 and the top is 6x+3 with both sides being -5x+10?
Salsk061 [2.6K]

Step-by-step explanation:

Area=(a+b)/2 x h

a=6x+3

b=4x-5

h=-5x+10

Area= -25x^2+55x-10

6 0
3 years ago
X = <br><br> y = <br><br> m ∠ H = <br><br> m ∠ G =
Lorico [155]

Answer:

x=53

y=26

H=106

G=93

Step-by-step explanation:

By the inscribed quadrilateral conjecture:

2x+(x+21)=180\\(3y+9)+(4y-11)=180\\3x+21=180\\3x=159\\x=53\\7y-2=180\\7y=182\\y=26\\H=2(53)=106\\G=(4(26)-11)=104-11=93

Hope this helps!

4 0
3 years ago
. Let f(p) be the average number of days a house stays on the market before being sold for price p in $1,000s. Which statement b
Umnica [9.8K]

Answer: a.This is the average number of days the house stayed on the market before being sold for $150,000.


Step-by-step explanation:

Given: f(p) be the average number of days a house stays on the market before being sold for price p in $1,000s.

To find the meaning f(150),

here p= 150 which means f(150) is the average number of days a house stays on the market before being sold for price 150 in $1,000s.

And 150 in $ 1,000= $150,000

Therefore, f(150) is the average number of days a house stays on the market before being sold for price $150,000.


7 0
3 years ago
Read 2 more answers
Which expression is equivalent to (photo inserted) help asap please
alekssr [168]

The answer would be A!

Whenever there is a fraction in the exponent, the numerator is under the square root, and the denominator is on the outside of the square root!

Additionally, since the negative is outside of the square toot, then it also outside of the parenthesis.

8 0
2 years ago
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