3 years ago

If f(x)= 3/x+2 - square root of x-3, the domain for f(x) is all real numbers ___ than or equal to 3

Mathematics

2 answers:

kogti [31]3 years ago

6 0

Answer:

Greater than

Step-by-step explanation:

aksik [14]3 years ago

5 0

Answer:

I don't get the question very well

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The elevation E, in meters, above sea level at which the boiling point of a certain liquid is t degrees Celsius is given by th

const2013 [10]

For T = 89.5 degrees C:
E(t) = 1100(90 - 89.5) + 520(90 - 89.5)^2= 1100(0.5) + 520(0.5)^2= 550 + 130= 680 m
For T = 90 degrees C:
E(t) = 1100(90 - 90) + 520(90 - 90)^2= 0 + 0= 0 m (meaning that boiling point is 90 degrees C at ground level)

3 0

3 years ago

Favorite radio station has this hourly

IceJOKER [234]

P(n)=news time/total time

We are told that the news is 14 minutes long during an hour so

p(n)=14/60

p(n)=7/30

7 0

3 years ago

( 7x + 1/2) + ( 7x - 7 and 1/2) Simplify

pishuonlain [190]

Answer:

The answer will be 7(2x - 1)

Step-by-step explanation:

1) Convert 7 and 1/2 to improper fraction. Use this rule: a b/c = ac + b/c

$7x + \frac{1}{2} + 7x - \frac{7 \times 2 + 1}{2}$

2) Simplify 7 × 2 to 14 .

$7x + \frac{1}{2} + 7x - \frac{14 + 1}{2}$

3) Simplify 14 + 1 to 15.

$7x + \frac{1}{2} + 7x - \frac{15}{2}$

4) Collect like terms.

$(7x + 7x) + ( \frac{1}{2} - \frac{15}{2} )$

5) simplify.

$14x - 7$

6) Factor out the common term 7.

$7(2x - 1)$

Therefor, the answer is 7( 2x - 1 ).

7 0

2 years ago

Write each vector described below in component form and find its magnitude. Draw an arrow originating from (0,0) to

ElenaW [278]

Answer:

a = 3xi - 4yj b = -6xj c = -2xi + 2yj d = 5xi + 7yj

a ; b ; c ; d vectors

i and j unit vectors

Step-by-step explanation:

See attached file

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2 years ago

What is the square root of 49/900

Radda [10]

0.00777777777 I think

6 0

3 years ago