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Varvara68 [4.7K]
3 years ago
10

C is a number such c absolute value plus 5 equally’s 9. How many possible values so c are there?

Mathematics
1 answer:
irinina [24]3 years ago
4 0

Assuming the equation is

|c|+5=9

you can subtract 5 from both sides to get

|c| = 4

Which means that the "positive version" of c has to be 4.

So, if c is positive, it must be 4 itself.

If c negative, it must be -4, so that when you change its sign it becomes 4 again.

So, the answer is c = \pm 4

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Leno4ka [110]

Answer:

The interval will be narrower if the researchers increase the sample size of droplets.

Step-by-step explanation:

The confidence interval can be obtained using the relation :

Xbar ± Margin of error

Margin of Error = Zcrit * s/sqrt(n)

Zcritical = critical vlaue at the specified α - level

n = sample size ; s = standard deviation

Sample size being the denominator, will reduce the overall value of the error margin as we utilize a larger sample.

Hence, the interval becomes narrower as the error margin is reduced which is achieved by employing an increased sample size.

3 0
3 years ago
Find the ratio as simply as possible in the form a : b.
Charra [1.4K]
<h2>>> Answer </h2>

_________

\:

3 \frac{1}{2}  : 1 \frac{1}{7}

=  \frac{3 \frac{1}{2} }{1 \frac{1}{7} }

=  \frac{ \frac{7}{2} }{ \frac{8}{7} }

=  \frac{7}{2}  \times  \frac{7}{8}

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7 0
3 years ago
What is the value of x - 9 = - 13?​
lana [24]

x-9=-13

Add 9 to both sides.

x=-4

hope it helps!

6 0
3 years ago
-2x + 3y - 4 =0<br> Find the x-intercept and y-intercept of the line
MAVERICK [17]

Answer:

Step-by-step explanation:

To find the x-intercept, set y = 0 and solve for x.

-2x + 3y - 4 = 0

-2x + 3(0) - 4 = 0

-2x + 0 - 4 = 0

-2x - 4 = 0

-2x = 4

 x =  4/-2

  x = -2                    The x-intercept is -2

To find the y-intercept, set x = 0 and solve for y.

-2x + 3y - 4 = 0

-2(0) + 3y - 4 = 0

0 + 3y - 4 = 0

     3y - 4 = 0

     3y = 4

       y = 4/3           The y-intercept is 4/3

6 0
3 years ago
(the diagram showing parts of the floor plan of a low cost house which will be bought by Michael. find the perimeter of the livi
Helga [31]

46cm

Step-by-step explanation:

5+2.5+2.5+2.5+4+(9-2.5) +(4+2.5) + 2.5 +5+9=46

<em>Hope</em><em> this</em><em> </em><em>helps</em>

7 0
3 years ago
Read 2 more answers
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