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ohaa [14]
3 years ago
11

Find the domain of fg. f(x)=x+2 g(x)=1/x+2 a. all real numbers b. all real numbers, except 2 c. all real numbers, except -2 d. (

-2,0) U [2, -2)
Mathematics
1 answer:
sleet_krkn [62]3 years ago
6 0

Answer:

all real numbers

Step-by-step explanation:

the domain will always be all real numbers

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What’s the value of x?
abruzzese [7]

Answer:

B and C

Step-by-step explanation:

The denominator of the rational expression cannot be zero as this would make it undefined.

Equating the denominator to zero and solving gives the values that x cannot be.

solve

3x² - 75 = 0 ( add 75 to both sides )

3x² = 75 ( divide both sides by 3 )

x² = 25 ( take the square root of both sides )

x = ± \sqrt{25} = ± 5 → B and C

7 0
3 years ago
Evaulate<br> -7(5+3)-|-6|
s2008m [1.1K]
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-56-6 = -62
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What is the area of a rectangle with a length of 9 and a width of 17?
ikadub [295]

Answer:

153 units squared

Step-by-step explanation:

To solve, multiply your length by your width.

A=lw\\A=9(17)\\A=153

5 0
3 years ago
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What is -five sixths time six fifths
s2008m [1.1K]

Answer:

-five sixths= -5/6

six fifths= 6/5

times= multiplication

so , -5/6 x 6/5 = -1

(both sixes get cancelled and the fives also get cancelled to get -1/1 = -1)

8 0
3 years ago
You jog 2 kilometers in 12 minutes. Your friend jogs 3 kilometers in 16.5 minutes. Who jogs faster? You jog faster. Your friend
Darya [45]

Answer:

a) Who jogs faster?

Your friend jogs faster because he jogs with a speed of 10.91 km/hr

Step-by-step explanation:

Speed = Distance(km)/Time(hours)

Question 2 How much sooner will the faster jogger finish a five-kilometer race?

Your friend's will finish a 5km race at a speed of 18.18 km/hr

Your speed is :

You jog 2 kilometers in 12 minutes.

Convert 12 minutes to hours

60 minutes = 1 hour

12 minutes = x

x = 12/60

x = 1/5 hour

Your speed is calculated as:

2km/1/5hour

= 2 km ÷ 1/5 hour

= 2 × 5

= 10 km/hr

Your friend's speed is calculated as:

Your friend jogs 3 kilometers in 16.5 minutes.

Convert 16.5 minutes to hours

60 minutes = 1 hour

16.5 minutes = x

x = 16.5/60

x = 0.275 hour

Your speed is calculated as:

3km/0.275 hour

= 10.909090909 km/hr

Approximately = 10.91km/hr

a) Who jogs faster?

Your friend jogs faster because he jogs with a speed of 10.91 km/hr

Question 2 How much sooner will the faster jogger finish a five-kilometer race?

Your friend jogs faster, hence:

3 km = 10.91 km/hr

5km = x

x = 5 × 10.91/3

x = 18.183333333 km/hr

Your friend's will finish a 5km race at a speed of 18.18 km/hr

4 0
3 years ago
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