All categories

2 years ago

Anybody know the rest on the answers

Mathematics

1 answer:

Aleksandr-060686 [28]2 years ago

5 0

21. 6
23. 9 I think
9. -15
24. -4

You might be interested in

Show visual model of 1/2 meter long and 3/10 meter wide

Basile [38]

This would be 5x3 :)

I did my best to keep the line dotted properly.

3 0

2 years ago

Of all individual tax returns, 37 percent include errors made by the taxpayer. If IRS examiners are assigned randomly selected r

Dima020 [189]

Answer:

mean=4.44

standard deviation=1.67

Step-by-step explanation:

The mean and standard deviation for the number of erroneous returns per batch can be calculated using binomial distribution. The binomial distribution is used because

i) There are one of two possible outcomes( error or no error) that can be categorized into success and failure.

ii) The experiment is repeated fix number of times 12.

iii) The probability of success remains constant at each trial i.e. 37%

iv) The trails are independent.The mean and standard deviation of binomial distribution are np and √npq

Here, n=12, p=0.37 and q=1-0.37=0.63

mean=12*0.37=4.44

standard deviation=√12*0.37*0.63=√2.8=1.67

8 0

2 years ago

Figure not drawn to scale.

DerKrebs [107]

Though you do not provide a diagram, I am going to give this a try by assuming that O is the center of the circle, OA is a radius, and angle AOB is a central angle that measures 88 degrees.

We want to find out the area of sector AOB. First, we need to find the area of the entire circle. The area of a circle is given by $A= \pi r^{2}$ and since the radius of this circle is equal to 1, the area is $\pi ( 1^{2} )= \pi$

Next we need to know what fraction of the circle sector AOB represents. The distance around the circle is 360 degrees but the central angle that intercepts arc AB is 88 degrees. That meas that the fraction of the circle the sector represents is given by $\frac{88}{360}= \frac{11}{45}$

We multiply this by the area to obtain $\frac{11}{45} \pi$ which is the area of the sector.

4 0

2 years ago

The scatter plot shows a hiker's elevation above sea level during a hike from the base to the top of a mountain. The equation o

Goshia [24]

Answer:

2291.3

Step-by-step explanation:

The given regression equation is

y=9.82 x + 671

Where y= Hiker's elevation in feet and x= number of minutes.

Here, number of minutes is an independent variable while Hiker's elevation in feet is the dependent variable. The slope coefficient 9.82 depicts that due to unit increase in number of minutes the Hiker's elevation in feet increases by 9.82 feet.

We have to estimate the hiker's elevation after 165 minutes using the above regression equation. We simply put x=165 to estimate the hiker's elevation.

y= 9.82(165) + 671

y= 1620.3+671

y= 2291.3

So, the estimated hiker's elevation after 165 minutes is 2291.3 feet.

4 0

2 years ago

PLEASE FILL IN BLANK I WILL MARK AS BRAINLIEST

zvonat [6]

Answer:

$\sqrt[3]{x}$

$x^3$

Step-by-step explanation:

6 0

1 year ago