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3 years ago

Plzzzz help me !! Plzzzz!!!!!

Mathematics

1 answer:

padilas [110]3 years ago

5 0

Answer:

1) 19/53

2) 34/53

3) 12/53

4) 8/53

5) 13/53

Step-by-step explanation:

Find the group they are talking about and put it over the total amount of people

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Solve for C

valina [46]

Answer:

c=d/a-b

Step-by-step explanation:

a(c+b)=d

c+b=d/a

c=d/a-b

5 0

3 years ago

What is 400+5 in standard form

love history [14]

Standard form is just the number. The answer is 405.

5 0

3 years ago

Read 2 more answers

Could someone help me with this?

hodyreva [135]

Step-by-step explanation:

Identity the variable:

Initial Velocity is 35.

Initial Height is 204

Final Height is 0.

What looking for the time.

So we have

$0 = - 16 {t}^{2} + (35)t + 204$

Use Quadratic Formula,

$- b± \frac{ \sqrt{b {}^{2} - 4ac} }{2a}$

A is -16, B is 35 , C is 204.

So we have

$- 35± \frac{ \sqrt{ {35}^{2} - 4( - 16)(204) } }{ - 32}$

$- 35± \frac{ \sqrt{1225 + 2240} }{ - 32}$

$- 35± \frac{ \sqrt{3465} }{ - 32}$

${35} ± \frac{ \sqrt{3465} }{ - 32}$

The positve solution is

$4.83$

So the answer is 4.83 seconds

5 0

2 years ago

The net of a prism is shown on the coordinate plane. What is the surface area of the prism?

nata0808 [166]

Answer:

Option C. 10 square inch

Step-by-step explanation:

Net of a prism is shown on the coordinate plane. We have to calculate the surface area of the prism.

To calculate the surface area of the net we will calculate the area of the four large rectangles and two squares given in the picture.

Total surface area of the net = 2× small squares + 4×large rectangles

= 2×(1×1) + 4×(1×2) = 2 + 8 = 10 square inch.

Therefore option C. 10 square inch is the answer.

6 0

4 years ago

It is known that 80% of all brand A external hard drives work in a satisfactory manner throughout the warranty period (are "succ

just olya [345]

Answer:

P (x= 5) = 0.0001

P(x=3) = 0.008699

Step-by-step explanation:

This is a binomial distribution .

Here p = 0.8 q= 1-p = 1-0.8 = 0.2

n= 15

So we find the probability for x taking different values from 0 - 15.

The formula used will be

n Cx p^x q^n-x

Suppose we want to find the value of x= 5

P (x= 5) = 15C5*(0.2)^10*(0.8)^5 = 0.0001

P(x=3) = 15C3*(0.2)^12*(0.8)^3 = 9.54 e ^-7= 0.008699

Similarly we can find the values for all the trials from 0 -15 by substituting the values of x =0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15.

3 0

3 years ago