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telo118 [61]
3 years ago
14

Two numbers whose sum is -1 and product is -20

Mathematics
1 answer:
enyata [817]3 years ago
3 0

Answer:

Let the two numbers be x and y.

Then x + y = 20, and y = 20 - x.

Their product is what you get when you multiply the two numbers together, in other words xy, or x(20 - x). You can expand this out to get 20x - x².

The product of the two numbers will be maximum at the value

Step-by-step explanation:

sorry if this didn't help

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Seven customers enter a clothing store and are observed to determine if they will make a purchase. The store owner states that t
blondinia [14]

Answer: Mean = 5.25

Variance = 1.3125

Standard deviation = 1.456

Step-by-step explanation:

The mean and variance of a binomial distribution with parameters n (number of trials) and p ( the probability of getting success in each trial) is given by :-

\text{Mean}=np\\\\\text{Variance}=np(1-p)

Given : The total number of enter a clothing store : n=7

The probability of a customer making a purchase= 0.75

Now,

\text{Mean}=7(0.75)=5.25\\\\\text{Variance}=7(0.75)(0.25)=1.3125\\\\\Rightarrow\ \text{Standard deviation}=\sqrt{1.3125}=1.14564392374\approx1.1456

3 0
3 years ago
Solve and show work (4-9)(-6)-1)
Dmitry_Shevchenko [17]
The answer is 29.
I hope it helps if not pls let me know
6 0
3 years ago
Read 2 more answers
A circle has a diameter of 29 feet. What is the area? *
11111nata11111 [884]

Answer:

The answer is

<h2>660.5 square feet</h2>

Step-by-step explanation:

Area of a circle = πr²

where r is the radius

From the question

diameter = 29 feet

To find the radius given the diameter we use the formula

radius =  \frac{diameter}{2}  \\ radius  =  \frac{29}{2}  \\  = 14.5 \:  \: feet

So the area of the circle is

A =  {14.5}^{2} \pi \\  = 210.25\pi \\  = 660.519...

We have the final answer as

<h3>660.5 square feet</h3>

Hope this helps you

7 0
3 years ago
Round 3,236 to the nearest hundred<br>​
Xelga [282]

Answer:

3,200

Step-by-step explanation:

3 is less than 5 so you round down to 3,200

7 0
3 years ago
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if a pyramid and a rectangular prism have congruent bases and equal heights, what's the difference between their volumes?
Marysya12 [62]
What are answer for can you put the answers please
3 0
3 years ago
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