All categories

2 years ago

Evaluate each expression if x = 5 24-3x

Mathematics

2 answers:

Aleks04 [339]2 years ago

5 0

1.) 24-3x if x=5 ; plug it in.

2.) 24-3(5) ; 3x5=15

3.) 24-14 = 9

4.) 9 is your answer :)

laila [671]2 years ago

3 0

Answer:

24-3x

Now, Putting the value of x=5

= 24-3×5

=24-15

Step-by-step explanation:

#Hope it helps u

You might be interested in

8.9 x 10^-10 in standard form

Harlamova29_29 [7]

Answer:

science E-notation: 8.900e-10

Engineering Notation: 890.0x-12

real number: 8.9E-10

-.-

Step-by-step explanation:

6 0

3 years ago

Integrate 1 - x / x(x2 + 1) d x by partial fractions.

solniwko [45]

Answer:

$log x-\frac{log(x^{2}+1) }{2}-tan^{-1} x$

Step-by-step explanation:

step 1:- by using partial fractions

$[tex]\frac{1-x}{x(x^{2}+1) } =\frac{A(x^{2}+1)+(Bx+C)(x }{x(x^{2}+1) }$ ......(1)

step 2:-

solving on both sides

$1-x=A(x^{2} +1)+(Bx+C)x......(2)$

substitute x =0 value in equation (2)

1=A(1)+0

A=1

comparing x^2 co-efficient on both sides (in equation 2)

0 = A+B

0 = 1+B

B=-1

comparing x co-efficient on both sides (in equation 2)

-1 = C

step 3:-

substitute A,B,C values in equation (1)

now

$\\\int\limits^ {} \, \frac{1-x}{x(x^{2}+1) } d x =\int\limits^ {} \frac{1}{x} d x +\int\limits^ {} \frac{-x}{x^{2}+1 } d x -\int\limits \frac{1}{x^{2}+1 } d x$

by using integration formulas

i) by using $\int\limits \frac{1}{x} d x =log x+c........(a)\\\int\limits \frac{f^{1}(x) }{f(x)} d x= log(f(x)+c\\$ .....(b)

$\int\limits tan^{-1}x dx =\frac{1}{1+x^{2} } +C$ .....(c)

step 4:-

by using above integration formulas (a,b,and c)

we get answer is

$log x-\frac{log(x^{2}+1) }{2}-tan^{-1} x$

6 0

2 years ago

2(x-3)-8< -4 I need a explanation and the answer please.

tresset_1 [31]

Answer:

The solution to the inequality is:

$x$

The number line solution graph is also attached below.

Step-by-step explanation:

Given the inequality

$2(x-3)-8< -4$

Add 8 to both sides

$2\left(x-3\right)-8+8$

$2\left(x-3\right)$

Divide both sides by 2

$\frac{2\left(x-3\right)}{2}$

$x-3$

Add 3 to both sides

$x-3+3$

$x$

Thus, the solution to the inequality is:

$x$

The number line solution graph is also attached below.

6 0

2 years ago

Kevin weighs himself and discovers he weighs 78,900 grams. How many kilograms does Kevin weigh?

faltersainse [42]

Answer:

He would weigh 78.9 kilograms. hope this helps.

3 0

3 years ago

The population of a certain species of fish in a lake has a relative growth rate of 1-2%. It is estimated the population in the

hichkok12 [17]

Answer:

Fish Population The population of a certain species of fish has a relative growth rate of 1.2 %per year. It is estimated that the population in 2000 was 12 million. (a) Find an exponential model for the population tyears after 2000 . (b) Estimate the fish population in the year 2005 (c) Sketch a graph of the fish population.

Step-by-step explanation:

5 0

2 years ago