3 years ago

How to justify each step in the solution of 5x+15=0

Mathematics

2 answers:

Flura [38]3 years ago

4 0

Answer:

5x+15=0

5x= -15

x= -15/5

x= -3

the solution of the equation is X= -3

nalin [4]3 years ago

4 0

The solution of the equation is x=-3

You might be interested in

If f(x)=-x+3 find f(-3)

nekit [7.7K]

If f (x) = -x + 3

Then f (-3) = -(-3) + 3

f (-3) = 3 + 3

f (-3) = 6

Hope this helps!

8 0

3 years ago

Read 2 more answers

If the scores per round of golfers on the PGA tour are approximately normally distributed with mean 69.3 and standard deviation

shusha [124]

Answer:

0.6069

Step-by-step explanation:

Given an approximately normal distribution:

Z = (x - mean) / standard deviation

Mean = 69.3 ; Standard deviation = 2.58

For :

P(x < 70)

Z = (70 - 69.3) / 2.58

Z = 0.7 / 2.58

Z = 0.2713

P(Z < 0.2713) = 0.6069

8 0

3 years ago

Let a= x^2 +4. Rewrite the following equation in terms of a and set it equal to zero.

swat32

Answer:

C and G

Step-by-step explanation:

(x^2+4)^2+32=12x^2+48 is written as $(x^2+4)^2+32=12x^2+48$ .

We can simplify the expression using the term a by replacing x^2 + 4 with a.

$(x^2+4)^2+32=12x^2+48\\(x^2+4)^2+32=12(x^2+4)\\a^2 + 32 = 12a\\a^2 - 12a + 32 = 0$

This factors into (a-4)(a-8). Solve by setting each factor equal to 0 and solve for a.

a-4 = 0 a=4

a-8=0 a=8

4 0

3 years ago

-2(3 + c) = 16<br> what is the value of c is a solution to the equation

lana [24]

Answer:

-11

Step-by-step explanation:

Simplify

4 0

2 years ago

Read 2 more answers

Evaluate and give me the answer

Nana76 [90]

(-3)^3= -27
(-9)^2= 81

7 0

3 years ago

Read 2 more answers