a tennis player hits a serve that cannot be returned 45 percent of the time. Out of 300 serves, how many can yiu predict will not be returned?

Answers

Answer 1
Answer:
Remember that 45%=45/100=0.45

So if the tennis player serves the ball 300 times, and 45% cannot be returned, then we can use the following expression to solve for the answer:

300*0.45=135serves

Answer: 135 serves will not be returned
Answer 2
Answer:

Answer:135 serves

Step-by-step explanation:

Remember that 45%=45/100=0.45

So if the tennis player serves the ball 300 times, and 45% cannot be returned, then we can use the following expression to solve for the answer:

300*0.45=135serves

Answer: 135 serves will not be returned


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Divide the following problems: 2/3 divided by 1/5, 5/9 divided by 10/11, 7/2 divided by 3/4, and 4 1/3 divided by 3/2. Show your work. (Try to get back to me as soon as you can, thanks!)
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How do you do square feet of outdoor carpet with holes in it?

Answers


Find the length and width of the carpet, and multiply the two numbers together. Depending on the size of the holes, you can just round the square footage to what you came up with before. If the holes are significantly sized, measure from one side of the hole to the other to find the holes diameter. Divide the diameter in half to find the radius, and square it. (To square it is multiplying it by itself.) Multiply the radius squared by 3.14. Repeat this on every hole, and subtract it from the square footage of the blanket if it didn't have the holes.

The standard normal curve shown here is a probability density curve for a continuous random variable. This means that the area underneath the entire curve is 1. What is the area of the shaded region between the two z-scores indicated in the diagram?

Answers

Answer with explanation:

The Curve given here is a probability density curve for a continuous random variable.

Area under the entire region of the curve = 1

Using the Standard normal table to obtain area occupied when Z values are given

Area of the normal curve, when ,Z =0.88, is =0.8106

Area occupied by normal curve ,when Z= -1.26, is =0.1038

So, Area of shaded Region

     Z_(0.88)-Z_(-1.26)=0.8106-0.1038\n\n=0.7068

Option D:→ 0.7068    

I used one of the statistical functions on my trusty TI-83 Plus calculator:


normcdf(-1.26, 0.88) = 0.707


Note that this is, as expected, between 0 and 1.


Can you make a quadrilateral with three ordered pairs?

Answers

No. If you have 3 given points, you can only make: 

• A triangle by connecting the three points to the two neighbours

• A circle that contains the three points in its arc


there are 36 students in Keaton 6th grade class. if 5/12 of her students are girls how many girls in class

Answers

36 students
5/12 are girls
36 / 12 = 3
3 x 5 = 15
15 students are girls.

A cylindrical container has a radius of 4 cm and a height of 7 cm. to the nearest tenth, what is the volume of the container?es
347.2 cm3
351.9 cm3
359.1 cm
372.4 cm

Answers

Answer:

Volume = 351.9cm³

Step-by-step explanation:

Volume of cylinder = πr²h

r = 4cm, h = 7cm, π = 3.142, volume = 347.2cm³

Volume = 3.142 × 4² × 7

Volume  = 3.142 × 16 × 7

Volume = 351.90cm³

Volume = 351.9cm³

I hope this was helpful, please mark as brainliest

Answer:

B) 351.9 cm3

Step-by-step explanation:

351.9 cm3

V = πr2h

V = π(4)2(7)

V = π(16)(7)

V = 112π

V = 351.858

Is 40(2x-16y) equivalent to 42x-56y

Answers

No, because the Distributive Property shows that 40(2x-16y) = 80x-640y, which does not equal 42x-56y