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3 years ago

What is the domain of the function f(x) = square root x-9+5?

Mathematics

1 answer:

tankabanditka [31]3 years ago

3 0

Answer:

sqrt x-4

Step-by-step explanation:

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Ratio of x and 2 is not greater than 14

allochka39001 [22]

The ratio of x and 2=x:2
not greater than is <

So I'd say the answer would be x:2<14

3 0

3 years ago

Solve for the unknown variable 2/5(3x-4)=-4

Elanso [62]

Answer:

x = -2

Step-by-step explanation:

Solve for x:

(2 (3 x - 4))/5 = -4

Multiply both sides of (2 (3 x - 4))/5 = -4 by 5/2:

(5×2 (3 x - 4))/(2×5) = -4×5/2

5/2×2/5 = (5×2)/(2×5):

(5×2)/(2×5) (3 x - 4) = -4×5/2

5/2 (-4) = (5 (-4))/2:

(5×2 (3 x - 4))/(2×5) = (-4×5)/2

(5×2 (3 x - 4))/(2×5) = (2×5)/(2×5)×(3 x - 4) = 3 x - 4:

3 x - 4 = (-4×5)/2

(-4)/2 = (2 (-2))/2 = -2:

3 x - 4 = 5×-2

5 (-2) = -10:

3 x - 4 = -10

Add 4 to both sides:

3 x + (4 - 4) = 4 - 10

4 - 4 = 0:

3 x = 4 - 10

4 - 10 = -6:

3 x = -6

Divide both sides of 3 x = -6 by 3:

(3 x)/3 = (-6)/3

3/3 = 1:

x = (-6)/3

The gcd of -6 and 3 is 3, so (-6)/3 = (3 (-2))/(3×1) = 3/3×-2 = -2:

Answer: x = -2

6 0

3 years ago

Read 2 more answers

keisha drove 380 miles using 14 gallond of gas. At this rate, how many gallons of gas would she need to drive 418 miles?

pychu [463]

14gallons=380miles

14/380=<span>0.03684210526gallons/mile
</span>
418*<span>0.03684210526=15.4gallons
</span>
or you could cross multiply

14gallons=380miles
x gallons=418miles

$\frac{14}{380} = \frac{x}{418}$

380x=5852
divide both sides by 380
x=15.4 gallons

8 0

3 years ago

IN MATH WHAT IS 86 DIVIDE BY 6 WHAT THE REMAINDER

Valentin [98]

14 and the remainder is 3

5 0

3 years ago

Read 2 more answers

I NEED HELP ASAP PLEASEE

Aleonysh [2.5K]

Put your dot 5 marks left of zero

Put the other dot 10 marks right of zero