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marissa [1.9K]
2 years ago
7

Find the solution set. 7x^2-5x-2=0

Mathematics
1 answer:
GenaCL600 [577]2 years ago
7 0

Answer:

x

=

 

−

b

±

√

b

2

−

4

a

c

2

a

, we get that

x

=

−

2

,

0.6

Explanation:

Rearrange the equation so that it becomes:

5

x

2

+

7

x

−

6

=

0

The quadratic formula is:

x

=

−

b

±

√

b

2

−

4

a

c

2

a

In our equation above,

a

=

5

b

=

7

c

=

−

6

Plugging these values into the quadratic equation gives:

x

=

−

7

±

√

7

2

−

4

(

5

)

(

−

6

)

2

(

5

)

x

=

−

7

±

√

49

+

120

10

x

=

−

7

±

√

169

10

x

=

−

7

±

13

10

x

=

−

2

,

0.6

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Jenny owns a salon. She had 150 customers at the end of the third quarter, 151 customers at the beginning of the third quarter,
Morgarella [4.7K]

There is a 96% customer retention rate for the third quarter.

Given

Jenny owns a salon.

She had 150 customers at the end of the third quarter, 151 customers at the beginning of the third quarter, and five new customers in the third quarter.

<h3>Customer retention rate;</h3>

It determines the percentage of customers that the company has retained over a given period.

The customer retention rate is determined by;

\rm Customer\  retention\  rate=\dfrac{Given \ period - New \ customers}{Initial \ number}\times 100

Substitute all the values in the formula;

\rm Customer\  retention\  rate=\dfrac{Given \ period - New \ customers}{Initial \ number}\times 100\\\\\rm Customer\  retention\  rate=\dfrac{150-5}{151}\times 100\\\\\rm Customer\  retention\  rate=\dfrac{145}{151}\times 100\\\\\rm Customer\  retention\  rate=0.96 times 100\\\\\rm Customer\  retention\  rate=96 \ percent

Hence, there is a 96% customer retention rate for the third quarter.

To know more about customer retention rate click the link given below.

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7 0
2 years ago
PLEASE ASAP I WILL MARK BRAINLIST
inessss [21]

Answer:

a. quotient refers to division

3 0
3 years ago
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Phantasy [73]

Answer:

<em>Hi there!</em>

<u><em>For 1. it should be answer b</em></u>

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Step-by-step explanation:

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