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2 years ago

4.

Mathematics

1 answer:

Black_prince [1.1K]2 years ago

3 0

Answer:

9.1 or 9.1 ≈ 9

Step-by-step explanation:

All you have to do is divide 64/7 which gives you the number of containers.

Hope this helps!

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The random variable x represents the number of computers that families have along with the corresponding probabilities. Find the

Charra [1.4K]

The value of the Mean & Standard deviation is 1.30 and 1.18.

According to the statement

we have a given that the random variable x represents the number of computers that families have along with the corresponding probabilities.

And we have to find the mean and standard deviation from the given data which is related to the probabilities values

So, according to the given data

The formula to compute the mean is:

Mean = summation [x*p(x)]

Compute the mean as follows:

Mean = summation [x*p(x)]

Mean = summation [0*0.49 + 1* 0.05 + 2*0.32 + 3*0.07 + 4*0.07]

Mean = 0 +0.05 + 0.64 + 0.21 + 0.28

Mean = 1.18

The mean of the random variable x is 1.18.

And after calculating the variance from the formula get

The value of standard deviation is 1.30

So, The value of the Mean & Standard deviation is 1.30 and 1.18.

Learn more about mean and standard deviation here brainly.com/question/14650840

#SPJ4

8 0

1 year ago

If f(1)=4 and f(n)= -2(n-1) -4 then find the value of f(5)

hoa [83]

Answer: f(5) = 43

Step-by-step explanation:

7 0

2 years ago

Express the following numbers in standard form. [A] 509.78 [B] 0.0289 Can someone please help me ? I need to answer that questio

STALIN [3.7K]

Answer:

(A) 509.78

We need to move the decimal point after the first non-zero digit

So,

=> 5.0978 × 10² (Since the decimal point is moved two places to the left)

(B) 0.0289

Again after the first non-zero digit:

So, it becomes:

=> 2.89 × 10⁻² (Since the decimal point is moved 2 places to the right so it will be negative also)

8 0

3 years ago

Read 2 more answers

A young child throw a ball upwards with an initial velocity of 20 feet/second. The height of the ball (in feets) after t seconds

Levart [38]

If this is a parabolic motion equation, then it is a negative parabola, which looks like a hill (instead of a positive parabola that opens like a cup). Your equation would be h(t)= -16t^2 + 20t +3. That's the equation for an initial velocity of 20 ft/s thrown from an initial height of 3 ft. And the -16t^2 is the antiderivative of the gravitational pull. Anyway, if you're looking for the maximum height and you don't know calculus, then you have to complete the square to get this into vertex form. The vertex will be the highest point on the graph, which is consequently also the max height of the ball. When you do this, you get a vertex of (5/8, 9.25). The 9.25 is the max height of the ball.

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2 years ago

A plant grows at a constant rate of __ cm per day.

devlian [24]

Plant grows at 3CM per day

equation: y= 3x

21 is y so 21= 3x. divide by 3 so it's been 7 days

3 0

3 years ago