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3 years ago

Can you help me? My answer was C but I am not sure

Mathematics

1 answer:

zvonat [6]3 years ago

6 0

Imagine the coordinates as x and y. So if you go out to 2 on the x axis, and up 0 you have one dot. Now go out 2 on the x axis, and up 5 on the y axis. The two dots when connected are vertical. I believe you are correct.

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Ryan drove for 4.5 hours to his uncle’s house. His uncle lives 234 miles away. Assuming Ryan drove at a constant rate, at what s

Fantom [35]

If you were to find the constant rate, you would have to take 4.5 and divide it into 234 to get the answer

You would get 52 as the constant speed

5 0

3 years ago

Read 2 more answers

What is the volume of this rectangular prism?

tangare [24]

180
This is because 12x5x3 = 180

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2 years ago

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In testing a certain kind of missile, target accuracy is measured by the average distance X at which the missile explodes. The d

3241004551 [841]

Answer:

The answer is c) 761.0

Step-by-step explanation:

Mathematical hope (also known as hope, expected value, population means or simply means) expresses the average value of a random phenomenon and is denoted as E (x). Hope is the sum of the product of the probability of each event by the value of that event. It is then defined as shown in the image, Where x is the value of the event, P the probability of its occurrence, "i" the period in which said event occurs and N the total number of periods or observations.

The variance of a random variable provides an idea of the dispersion of the random variable with respect to its hope. It is then defined as shown in the image.

Then you first calculate E [x] and E [ $x^{2}$ ], and then be able to calculate the variance.

$E[x]=0*\frac{1}{40} +10*\frac{1}{20} +50*\frac{1}{10} +100*\frac{33}{40}$

$E[x]=0+\frac{1}{2} +5+\frac{165}{2}$

E[X]=88

So E[X]²=88²=7744

On the other hand

$E[x^{2} ]=0^{2} *\frac{1}{40} +10^{2} *\frac{1}{20} +50^{2} *\frac{1}{10} +100^{2} *\frac{33}{40}$

E[x²]=0+5+250+8250

E[x²]=8505

Then the variance will be:

Var[x]=8505-7744

Var[x]=761

5 0

3 years ago

PLZ HELP ill GIVE BRAINIESt!!!!20 Points

Goryan [66]

A) √50 = 2√25 . Her mistake was that she confused the radicand (25) & the outside factor to the radicand that is 2. The write answer is 5√2 & not the opposite

b) Find 2 numbers where their square nears the lower & the upper end of 50.

For instance 7² = 49 & 8² =64 are the nearest lower & upper numbers that encompass 50
Hence we can write the following inequality:

49<50<64 & √49<√50√64 ==> 7<√50<8

So the √50 is nearer to 7² rather than 8².

Then let's try 7.1² =50.41 Which is an acceptable approximation

7 0

3 years ago

Four bags of dry dog food plus 9.5 pounds of dry cat food weigh 17.5 pounds in all. How many pounds does each bag of dog food we

Likurg_2 [28]

Answer:

Step-by-step explanation:

17.5-9.5=8

$4\sqrt{8}$ =2

Each bag of dog food weight 2 pounds.

7 0

3 years ago