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Ivenika [448]
2 years ago
6

Find the zero of the function below: f(x) = 4x + 12

Mathematics
2 answers:
Ludmilka [50]2 years ago
8 0

Answer:

x = - 3

Step-by-step explanation:

To find the zero, let f(x) = 0, that is

4x + 12 = 0 ( subtract 12 from both sides )

4x = - 12 ( divide both sides by 4 )

x = - 3 ← is the zero

Ulleksa [173]2 years ago
7 0
Solve the equation for
x
, when
f
(
x
)
=
0

Then,
x
=
3
.
Explanation:
I assume you mean to find the solution/root (radical)
x
, when
f
(
x
)
=
0
.
Then, this is simple.
Just set
f
(
x
)
to 0 and solve the equation for
x
:
f
(
x
)
=
4
x
−
12
=
0
First we can add 12 on both sides of the equality:
4
x
−
12
+
12
=
0
+
12

which becomes
4
x
=
12
We can now divide both sides of the equality by 4:
4
x
4
=
12
4

and we have
x
=
3
The "zero", or the solution for
f
(
x
)
=
0
is
x
=
3
.
Q.E.D.
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3 years ago
What is the solution set for x + 6 &gt; 3
erastova [34]
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6 0
2 years ago
If 10+6/x=22 what is the value of x
s344n2d4d5 [400]

Answer:

x=8/11

Step-by-step explanation:

10+6/x=22

16/x=22

16=22x

x=16/22

x=8/11  

7 0
3 years ago
The length of two complementary angles are x and 2x+12. Find the measures of the angles.
Shtirlitz [24]

There's no such thing as the "length"of an angle. 
But we know what you're getting at.

You have said that the angles are complementary.  If two angles are
complementary, then  their sum is 90 degrees, so we can take your
two angles and write:

                       <u>x</u>  (one angle) plus <u>(2x + 12)</u> (the other one) <u>= 90 degrees

</u>
<u />                          x + 2x + 12  =  90<u>

</u>
Subtract 12 from each side:     x + 2x  =  78

Add the x's on the left side:        3x      =  78

Divide each side by  3 :                x      =  26 degrees

One angle is 'x'  =  <em>26 degrees</em>

The other one is (2x + 12) = 52+12 = <em>64 degrees</em>
4 0
3 years ago
Suppose 12% of the students chose to study French their freshman year, and that meant that there were 21 such students. How many
AleksAgata [21]

Answer:

154 students

Step-by-step explanation:

First get the total number of students .

This can be gotten by

12% of A = 21

Where A represents the total number of students.

12% represents the % of A that chose to study French and 21 is the number of students that studied French .

Therefore,

12% /100% x A = 21

0.12 x A = 21

Divide both sides by 0.12

0.12/0.12 x A = 21/0.12

A = 175

The total number of students is 175.

If 21 chose to study French their freshman year ,number of students that chose not to will be total number of students minus number of those who chose to study French.

That’s

175 - 21

= 154

154 students chose not to study French their freshman year

4 0
3 years ago
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