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dybincka [34]
3 years ago
14

In 1979, there were 1.9 million licensed registered nurses in a country. This number increased to 3.3 million in 2013. What is t

he percent increase?
Mathematics
1 answer:
Anni [7]3 years ago
4 0

Answer: yall i just need points i’m sorry

Step-by-step explanation:

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If James measures 5 feet 4 inches tall, how tall is James in inches? Answer without units. plss help
e-lub [12.9K]

Answer:

64

Step-by-step explanation:

he's 64 inches tall

- multiply 12 by 5, which is 60

- then add four, 60 + 4 = 64

4 0
3 years ago
1. Reduce the ratio to the simplest form: <br> a)5:10=_____. <br> b)60:54=____.
Nikitich [7]

Answer:

1:2 by division of 5

10:9 by division of 6

6 0
3 years ago
Read 2 more answers
What are the roots to<br> the equation<br> 2x² + 6x-1=0?
lys-0071 [83]

Answer:

The roots of  equations are as m =  \frac{-3}{2} + \frac{\sqrt{11} }{2}  And n =  \frac{-3}{2} - \frac{\sqrt{11} }{2}    

Step-by-step explanation:

The given quadratic equation is 2 x² + 6 x - 1 = 0

This equation is in form of a x² + b x + c = 0

Let the roots of the equation are ( m , n )

Now , sum of roots = \frac{ - b}{a}

And products of roots = \frac{c}{a}

So, m + n = \frac{ - 6}{2} = - 3

And m × n =  \frac{ - 1}{2}

Or, (m - n)² = (m + n)² - 4mn

Or, (m - n)² = (-3)² - 4 (\frac{ - 1}{2})

Or, (m - n)² = 9 + 2 = 11

I.e m - n = \sqrt{11}

Again m + n = - 3    And m - n = \sqrt{11}

Solving this two equation

(m + n) + ( m - n) = - 3 + \sqrt{11}

I.e 2 m =  - 3 + \sqrt{11}

Or, m = \frac{-3}{2} + \frac{\sqrt{11} }{2}

Similarly n =  \frac{-3}{2} - \frac{\sqrt{11} }{2}      

Hence the roots of  equations are as m =  \frac{-3}{2} + \frac{\sqrt{11} }{2}  And n =  \frac{-3}{2} - \frac{\sqrt{11} }{2}      Answer

6 0
4 years ago
WILL GIVE BRAINLIEST
Anna11 [10]

Answer:

Sarah is paid $20 an hour at her new job. She wishes to graph her total pay y, as a function of the number of hours, x. She wants to be sure her graph shows her pay for 10 and 20 hours of work.

a. What is a good scale to use for the x-axis? Explain your reasoning.

b. What is a good interval to use for the y-axis? Explain your r

Step-by-step explanation:

3 0
3 years ago
A train travels 250 miles at a constant speed (x), in miles per hour.Enter an equation that can be used to find the speed of the
Nastasia [14]
The first thing we must do for this case is to take into account the following variable:
 x = speed in miles per hour
 Then, by definition we have to:
 d = v * t
 Where,
 d: distance
 v: speed
 t: time
 Substituting values:
 250 = x * 5
 Answer:
 
An equation that can be used to find the speed of the train is:
 
250 = x * 5
6 0
3 years ago
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