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OlgaM077 [116]
3 years ago
14

TriangleACB~triangleEFD

Mathematics
1 answer:
tatiyna3 years ago
3 0

Answer:

y will be 4 here in the figure

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The price of a toy usually costing £50 is increased to £65.
Vitek1552 [10]

Answer:

I am assuming you want the percentage increase in the price.

Step-by-step explanation:

The percentage increase is ( 15/50) * 100

= 15 * 2

= 30%.

6 0
3 years ago
"A movie data base claims that the average length of movies is 117 minutes. A researcher collected a random sample of 160 movies
Sergeu [11.5K]

Answer:

We need to conduct a hypothesis in order to check if the mean the actual mean length of movies released during 2010-2015 is more than the data base value (a;ternative hypothesis) ,so then the system of hypothesis would be:  

Null hypothesis:\mu \leq 117  

Alternative hypothesis:\mu > 117  

Step-by-step explanation:

Data given and notation  

\bar X=118.44 represent the sample mean

s=8.82 represent the sample standard deviation

n=160 sample size  

\mu_o =117 represent the value that we want to test

\alpha represent the significance level for the hypothesis test.  

t would represent the statistic (variable of interest)  

p_v represent the p value for the test (variable of interest)  

State the null and alternative hypotheses.  

We need to conduct a hypothesis in order to check if the mean the actual mean length of movies released during 2010-2015 is more than the data base value (a;ternative hypothesis) ,so then the system of hypothesis would be:  

Null hypothesis:\mu \leq 117  

Alternative hypothesis:\mu > 117  

3 0
3 years ago
Function g can be thought of as a translated (shifted) version of f(x)=|x|
Gnoma [55]

Answer:

Step-by-step explanation:

If, for example, we translate the graph of f(x) = |x| 3 spaces to the right, then the equation becomes g(x) = |x - 3|

5 0
4 years ago
I ligit dont understad
madam [21]

Answer:

(y - 3 )² = 8 ( x - 4 )

The given vertex of Parabola is ( 4 , 3)

And Directrix is X = 6

The equation of parabola is

( y - k )² = - 4 ( P) ( x - h )

Now  p = 4 - x = 4 - 6 = - 2

And given value of ( k , h) = ( 4 , 3)

Or ( y - 3 )² = - 4 ( - 2) ( x - 4 )

Or,  ( y - 3 )² = 8 ( x - 4 )

Hence The equation of parabola with directrix x = 6 And

vertex ( 4 , 3 ) is  ( y - 3 )² = 8 ( x - 4 )     Answer

3 0
3 years ago
HELPEHELP
xz_007 [3.2K]

Answer:

The equation should be 2.5x+1.8=59.3

Step-by-step explanation:

First, subtract the 1.8 dollars from the 59.3. You will get 57.5. Divide it by 2.5 and you will get the number 21 as x.

3 0
3 years ago
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