Ask question

Ask question

All categories

2 years ago

14

Marcus has a square shaped garden that has an area of 4(x^2-y^2) square feet. If the garden has four equal sections, what is the

area of each section?

1 answer:

SpyIntel [72]2 years ago

8 0

Answer:

x^2-y^2

Step-by-step explanation:

took a quiz and got it right

You might be interested in

Tre's walk from his house to the bus stop is of a mile. He is able to complete the walk each day in of an hour. What is Tre's wa

umka21 [38]

Tre's walking speed is 1mi/hr.

Data given;

distance = 1 mile
time = 1 hour

<h3>Speed or Velocity</h3>

This is the rate at which an object covers a distance within a particular time frame.

$speed = \frac{distance}{time}$

substituting the values into the equation

$speed = \frac{1}{1}\\ speed = 1 m/s$

Tre's walking speed is 1mi/hr

Learn more on speed, rate here;

brainly.com/question/11408596

brainly.com/question/2296493

8 0

2 years ago

Jeanette can swim 45 meters in 30 seconds. How far can she probably swim in 90 seconds?

shtirl [24]

H. 135 meters

Work: 45 meters in 30 seconds 45/30= 1.5 so 90x1.5 = 135 meters

6 0

2 years ago

Read 2 more answers

Please help me understand and solve this

ss7ja [257]

Step-by-step explanation:

just multiple them and you'll get the results and the results you got add them together

7 0

2 years ago

Con 5,2l tenemos para 100km, con 60l para cuantos km tenemos?

liraira [26]

Answer:

69

Step-by-step explanation:

7 0

2 years ago

The latest poll from ESPN asked fans what their favorite sport was, considering pro, college and highschool levels. Out of 1000

shepuryov [24]

Answer:

Confidence interval is $0.2911$

Step-by-step explanation:

Given that 32% of fans sport is basketball as favorite sport. So total number of fans is,

$32\%\times 1000$

$= \dfrac{32}{100}\times 1000$

$=320$

So 320 fans favorite sport is basket ball.

Now find sample proportion ,

$\widehat{p}=\dfrac{number\:of\:people\:in\:the\:sample}{total\:number\:of\:people}$

Substituting the value,

$\widehat{p}=\dfrac{320}{1000}$

$\widehat{p}=0.320$

Formula for confidence interval is,

$CI=\widehat{p}\pm z\sqrt{\dfrac{\widehat{p}\left (1-\widehat{p}\right )}{n}}$

To calculate the z value.

$Confidence Level=1-\alpha$

$0.95=1-\alpha$

$0.05=\alpha$

Now divide above value by 2,

$\dfrac{0.05}{2}=\dfrac{\alpha}{2}$

$0.025=\dfrac{\alpha}{2}$

To find the value of z score calculate the area under the curve as follows

$A=\dfrac{1+CL}{2}$

$A=\dfrac{1+0.95}{2}$

$A=\dfrac{1.95}{2}$

$A=0.975$

On z table, find the value of 0.975. So the row corresponding to 0.975 is 1.9 and column corresponding to 0.975 is 0.06. Adding these two values the z score is 1.96.

or find the value from excel by using command as follows,

=NORM.S.INV(0.025)= -1.959963985

Now substituting the value,

$CI=0.320\pm 1.96\sqrt{\dfrac{0.320\left (1-0.320\right )}{1000}}$

$CI=0.320\pm 0.02891$

Lower end of the interval is,

$CI=0.320- 0.02891$

$CI=0.2911$

Upper end of the interval is,

$CI=0.320+ 0.02891$

$CI=0.3489$

Therefore 95% confidence interval is $0.2911$

7 0

2 years ago