1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
natta225 [31]
3 years ago
8

WILL MARK THE BRAINIEST!!! LOTS OF POINTS!! HELP NOW

Mathematics
1 answer:
nadya68 [22]3 years ago
7 0
The answer is a) cos(arctan(1)) and the Angle is in quadrant 111
You might be interested in
Look at picture for question and answer
Sonja [21]
1. C

2. A

Hope this helped, enjoy your day.
4 0
4 years ago
2.933 expanded form decimals
Shkiper50 [21]
Just put a period between everything 2.9.3.3
8 0
3 years ago
HELP PLEASE
Maurinko [17]
\bf \cfrac{x^2-x-42}{x-6}\implies \cfrac{(x+7)\underline{(x-6)}}{\underline{x-6}}\implies x+7

so.. the left-hand-side does indeed simplify to x+7, so the equation does check out.

however, notice something, for the equation of x+7, when x = 6, we get (6) + 7 which is 13.

BUT for the rational, we get    \bf \cfrac{x^2-x-42}{x-6}\qquad \boxed{x=6}\implies \cfrac{x^2-x-42}{\boxed{6}-6}\implies \stackrel{und efined}{\cfrac{x^2-x-42}{0}}

so, even though the siimplification is correct, the rational or original expression is constrained in its domain.
6 0
3 years ago
the following data represent the number of people aged 25-64 years covered by health insurance (private or government) in 2018.
astraxan [27]

Answer:

mean = find the total of people in such data by adding up all the totals of people represented by each age then  divide that total by 2.

mean = with cumulative or frequency graphs if the numbers range individually like 25-30 and 30-35 etc and so on then you take the midpoint age and multiply it by the frequency number in new column add up both columns then divide by smaller total.

mean = histogram total number of data ie) from 270 people (80 x 0 = 0), (40 x 2 = 0) and so on multiplying the frequency. then add them all up in new column ie) 380 among 270 people = 1.4  

mode = histogram highest box

median = histogram add up all data number divided by 2 and can draw this on graph as they sort of are in order ie) 15 to the left and 15 to the right

To find standard deviation you need the copulative formula and the notation change for sample shows the small m and s to represent standard deviation ie) m-n is a notation difference for samples of population's

n = number of scores ie)  = 50  

Ex = then sum of x  = would be the collective total  ie) = 270

m = 270/50 = 5.4

Ex^2 = 270 x 270 = 72900   (the square of the total population)

SS = Sum of squares = 72,900 - ( 270^2 / 50) are all the variables.

is the formula  = 71,442

the root of SS -1

S^2 = 270 / (50 -1) =  270/49 = 5.51

S = sqrt S^2 = sqrt SS /n-1 = sq rt 50 = and you get your answer here.

Standard Deviation on data example here shown is;

S = sqrt 5.51 = sqrt 71442 / n-1 = sq rt 71442/ 50-1 = sq rt 71442/49 = 38.1837662  from a 270 population that exists with 50 age group 25 -75 to show the ease here and how to remember.

Just retrace and where 270 is change for total

Where 50 is put 64-25 = 39

and where n-1 is put 39-1 and always subtract first before dividing as the formula protects the brackets as seen in bold.

As your very last formula is S = SS/n-1

Step-by-step explanation:

5 0
3 years ago
assume that 2000 births are randomly selected and 64 of the births are girls. use subjective judgment to describe the number of
tatuchka [14]

Total no. of births = 2000

Births of girls = 64

Birth% of girls

=  \frac{64}{2000}  \times 100

=  \frac{64}{20}

=  \frac{6.4}{2}

= 3.2\%

Hence, the number of girls are significantly low.

4 0
3 years ago
Other questions:
  • Terri wrote the equation using slope-intercept form for the line that passes through the points (4,6) and (-2,3). Which best des
    15·1 answer
  • Ms.stoner purchased computer for 1,150. If the sales tax is 7.5 what is the total purchase?
    13·1 answer
  • What is 42/49 simplified
    10·2 answers
  • Quick I need help pls
    14·1 answer
  • 58 - 5X = 30X - 75 need help please
    10·1 answer
  • Sometimes a dilation is an enlargement, and sometimes it is a reduction. Explain what types of numbers for scale factors causes
    6·2 answers
  • What is (2/3 x 3/5) - (3/4 x 1/6)
    8·2 answers
  • Joakim is icing 30 cupcakes. He spreads mint icing on 1/5 of the cupcakes and chocolate on 1/2 of the remaining cupcakes. The re
    7·1 answer
  • Find a equation of a line that is perpendicular to y=-4x+3 and passes through the point (4,-1)
    8·1 answer
  • Can someone answer this because this one is confusing and I need help.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!