All categories

3 years ago

If f(x)=3/x+2-square root of x-3 what is f(19)

Mathematics

1 answer:

jasenka [17]3 years ago

5 0

Answer:

-27/7

Step-by-step explanation:

Replace x with 19,

f(19)=3/(19+2) - root(19-3)

=3/21 - root(16)

=1/7 - 4

=1/7 - 28/7

= -27/7

You might be interested in

Change 22 metres per second to a speed in kilometres per hour. Show your working clearly.

masha68 [24]

Answer:

79.2 km/hour

Step-by-step explanation:

1 m/sec= 3.6 km/hour 22m/sec= ? so just multiply 22 m/sec by 3.6 km/hour then the answer will be :- 79.2 km/hour

7 0

3 years ago

8. Find the value of x so that line mis parallel to line l. (1 p (3x+21)° (4x-7)

dybincka [34]

Answer: The value of x is 28.

Step-by-step explanation:

Since line m is parallel to line l.

So, we assume that

(3x+21)° and (4x-7)° are corresponding angles.

And we know that , corresponding angles formed when a transversal cut the parallel line are equal.

So, they must be equal to each other.

$3x+21=4x-7\\\\21+7=4x-3x\\\\28^\circ=x$

Hence, the value of x is 28.

6 0

4 years ago

Factorise the quadratic equation x square + 2 x + 36

LuckyWell [14K]

Answer:

Click on the link below to view the answer with the explanation in futher detail

Explanation:

Click the attached link to view the answer

5 0

3 years ago

Find the output of the function y = x - 16 if the input is -28. Help please

Serhud [2]

Answer:

-44

Step-by-step explanation:

If the input is -28, that means x = -28, so we plug -28 in for x and solve for y, which is the output:

y = x - 16

y = -28 - 16 = -44

The answer is thus -44.

5 0

3 years ago

PLEASE LOOK AT PICURE THEN ANWSER, WHOEVER IS CORRECT I WILL MARK BRAINIEST :)

irga5000 [103]

Answer:

b.g(x)= $x^{2}$ +3

Step-by-step explanation:

If two graphs have the same shape and you only want to change one's y intercept, you just have to add or subtract the number at which you want the graph to intercept the y axis from the equation

8 0

3 years ago