Please help me
Will only give brainly of you actually answer the questions

Answer:

t=6

Step-by-step explanation:

ground height = 0

(are you sure your formula is correct? isn't it - 16t²?)

if h=16t² +64t+192 is true then

16t² +64t+192 = 0

t² + 4t + 12 = 0

t = (-4 ± √(4² - 4*12)) / 2*1 = (-4 ± √-32) / 2 = -2 ± 2√-2

There is no solution of t

if it is h= - 16t² +64t+192

0 =- 16t² + 64t + 192

t² - 4t - 12 = 0

(t + 2) (t -6) = 0

t should be positive

t = 6 sec

Answer:

That's not a question silly.

Step-by-step explanation:

Answer:

Step-by-step explanation:

[tex]\large\underline{\sf{Solution-}}[/tex]

[tex]\rm \: \cos \bigg( \dfrac{3\pi}{2} + x \bigg) \cos \: (2\pi + x) \bigg \{ \cot \bigg( \dfrac{3\pi}{2} - x \bigg) + cot(2\pi + x) \bigg \}cos(23π+x)cos(2π+x)[/tex]

[tex]\rm \: \cos \bigg( \dfrac{3\pi}{2} + x \bigg) = sinx[/tex]

[tex]\rm \: {cos \: (2\pi + x) }[/tex]

[tex]\rm \: \cot \bigg( \dfrac{3\pi}{2} - x \bigg) \: = \: tanx[/tex]

[tex]\rm \: cot(2\pi + x) \: = \: cotx[/tex]

So, on substituting all these values, we get

[tex]\rm \: = \: sinx \: cosx \: (tanx \: + \: cotx)[/tex]

[tex]\rm \: = \: sinx \: cosx \: \bigg(\dfrac{sinx}{cosx} + \dfrac{cosx}{sinx} [/tex]

[tex]\rm \: = \: sinx \: cosx \: \bigg(\dfrac{ {sin}^{2}x + {cos}^{2}x}{cosx \: sinx}[/tex]

[tex]\rm \: = \: 1=1[/tex]

[tex]\boxed{\tt{ \cos \bigg( \frac{3\pi}{2} + x \bigg) \cos \: (2\pi + x) \bigg \{ \cot \bigg( \frac{3\pi}{2} - x \bigg) + cot(2\pi + x) \bigg \} = 1}}[/tex]

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Sign of Trigonometric ratios in Quadrants

Step-by-step explanation:

Hence,

[tex]\boxed{\tt{ \cos \bigg( \frac{3\pi}{2} + x \bigg) \cos \: (2\pi + x) \bigg \{ \cot \bigg( \frac{3\pi}{2} - x \bigg) + cot(2\pi + x) \bigg \} = 1}}[/tex]

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Answer:

765677676767666666666666666666666

Step-by-step explanation:

Step-by-step explanation:

first you find the volume of a bin.

that is multiplication of 3 dimensions given.

4*4*4=64 cubic feet...

now volume of books..

0.75*0.75.0.25=0.14 cubic feet

now the number of books that will fit the bin=volume of bin/volume of books

64/0.14=455

455 books

We want to see how many books can fit in a bin, given that we know the dimensions of the books and the bin. We will see that 457 books can enter in the bin.

Remember that the volume of a rectangular prism of length L, width W, and height H is just given by:

V = L*W*H

Here we know that each book is:

0.75ft by 0.75ft by 0.25ft

Then the volume of a single book is:

V = 0.75ft*0.75ft*0.25ft = 0.14 ft^3)

While the bin is 4ft by 4ft by 4ft, thus its volume is:

V ' = 4ft*4ft*4ft = 64ft^3

The number of books that fit in the bin is given by the quotient between the bin's volume and the book's volume:

N = (64ft^3)/(0.14 ft^3) = 457 books.

If you want to learn more about volume, you can read:

https://brainly.com/question/1972490

Answer:

Average is 10.2 standard deviation is 3.4

Step-by-step explanation:

To find the average age, add all the value together then divide by the amount added. (5 + 7 + 10 + 13 + 16) / 5

Standard deviation is average distance from average of each number. 10.2-5, etc…

The average age of the porcupines at the zoo is 10.2 and the standard deviation is 4

What is Standard Deviation?

The term "standard deviation" (or "") refers to a measurement of the data dispersion from the mean. A low standard deviation implies that the data are grouped around the mean, whereas a large standard deviation shows that the data are more dispersed.

Standard Deviation is calculated by

Given data ,

The set of ages of porcupines in zoo be S = { 16 , 10 , 5 , 7 , 13 }

The average of these numbers in set S is the sum of all the numbers divided by the number of elements in the set

So , Average age of the porcupines = ( 16 + 10 + 5 + 7 + 13 ) / 5

                                                            = 51 / 5

                                                            = 10.2

Therefore , the average age of the porcupines at the zoo is 10.2

The standard deviation is calculated by

Step 1 : Each number's deviation from the mean must be determined, and then squared.

( 16 - 10.2 )² + ( 10 - 10.2)² + ( 5 - 10.2 )² + ( 7 - 10.2 )² + ( 13-10.2 )²

= ( 5.8 )² + ( -0.2 )² + ( -5.2 )² + ( -3.2 )² + ( 2.8 )²

= 33.64 + 0.04 + 27.04 + 10.24 + 7.84

= 78.8

Step 2 : Divide the result by the quantity of numbers.

78.8 / 5

= 15.76

Step 3 : Then calculate its square root.

√15.76

= 3.96

≈ 4

Hence , the standard deviation is 4

To learn more about standard deviation click :
https://brainly.com/question/28189061

#SPJ2

Answer:

i dont understand

Step-by-step explanation:

Answer:

Step-by-step explanation:

WhWhat type of company??

Using the z-distribution and the information given, it is found that the 89% confidence interval for the difference in the proportions that get sick with Selttiks vs the placebo is (-0.07, -0.002).

The proportions, and it's respective standard errors, are given by:

[tex]p_s = 0.13, s_s = \sqrt{\frac{0.13(0.87)}{560}} = 0.0142[/tex]

[tex]p_p = 0.166, s_p = \sqrt{\frac{0.166(0.834)}{560}} = 0.0157[/tex]

The distribution of the difference has mean and standard error given by:

[tex]\pi = p_s - p_p = 0.13 - 0.166 = -0.036[/tex]

[tex]s = \sqrt{s_s^2 + s_p^2} = \sqrt{0.0142^2 + 0.0157^2} = 0.021[/tex]

The interval is:

[tex]\pi \pm zs[/tex]

The critical value using the z-distribution, for a 89% confidence interval, is z = 1.598, hence:

[tex]\pi - zs = -0.036 - 1.598(0.021) = -0.07[/tex]

[tex]\pi + zs = -0.036 + 1.598(0.021) = -0.002[/tex]

The 89% confidence interval for the difference in the proportions that get sick with Selttiks vs the placebo is (-0.07, -0.002).

A similar problem is given at https://brainly.com/question/16807970

Answer:

18

Step-by-step explanation:

3 x 6 = 18

you just need to plug in the value for x

Answer:

x=18

Step-by-step explanation:

if 6 is equal to "x" u just have to multiply by the times there's a x so it's 3×6=18

3x=18

Answer:

(2,4)

Step-by-step explanation:

I just took the test

Answer:

(2,4)

Explanation:

I took the quiz, and I hope this helps :)

Answer:A : slope = 20/1 -8/1 12/4 =3 Part B: The y-intercept is 5

Step-by-step explanation:

9514 1404 393

Answer:

  y = 3x +5

Step-by-step explanation:

The given form of the equation for a line is "slope-intercept" form. In order to use it, you need to know the slope of the line, and its y-intercept.

The y-intercept is where the line meets the y-axis. Here, that is halfway between 4 and 6, so we estimate the value to be b = 5.

The slope is the rise divided by the run. For x=1, the line has a point at (1, 8). That is 3 units above and 1 unit right of the point on the y-axis. Then the slope is ...

  m = rise/run = 3/1 = 3

For a slope of 3 and a y-intercept of 5, the equation of the line is ...

  y = mx +b . . . . . . slope m, y-intercept b

  y = 3x +5

4120_7 = 4•7³ + 1•7² + 2•7¹ + 0•7⁰

4120_7 = 4•343 + 1•49 + 2•7 + 0•1

4120_7 = 1372 + 49 + 14

4120_7 = 1435

In base 12, we use the digits 0-9 as well as A for 10 and B for 11. So

A3B_12 = 10•12² + 3•12¹ + 11•12⁰

A3B_12 = 10•144 + 3•12 + 11•1

A3B_12 = 1440 + 36 + 11

A3B_12 = 1487

In base 36, we assign values between 10 and 35 to the letters A-Z, so that

WXYZ_36 = 32•36³ + 33•36² + 34•36¹ + 35•36⁰

WXYZ_36 = 32•46656 + 33•1296 + 34•36 + 35•1

WXYZ_36 = 1492992 + 42768 + 1224 + 35

WXYZ_36 = 1537019

Answer:

(2x−y)  

Step-by-step explanation:

Debes utilizar la fórmula de cubo binomial, a  

3 −3a 2 b+3ab 2 −b3 =(a−b)  3

donde a=2x y b=y.

Answer:

54

Step-by-step explanation:

2×27=54 hope this helps

Answer:

2$/1 bottle   Hope this helps please mark brainliest and thanks!

Step-by-step explanation:

Answer:

its going to be the first one since the second one is a rotation

Step-by-step explanation:

Answer:

-2*-3*-2 =-12

then add the t or use it before

-12t

Answer:

i agree 100%

Step-by-step explanation:

Answer:

The 2nd,3rd,5th and the 6th

Step-by-step explanation:

got it right on edmentun/plato

Using proportions, it is found that the correct option is:

c. 100 milliliters of the first brine solution, 900 milliliters of the second brine solution

The 1-liter solution, with 23.5% salt,  is composed by:

Hence, the combined equation is:

[tex]0.1x + 0.25(1 - x) = 0.235[/tex]

[tex]0.1x + 0.25 - 0.25x = 0.235[/tex]

[tex]0.15x = 0.015[/tex]

[tex]x = \frac{0.015}{0.15}[/tex]

[tex]x = 0.1[/tex]

Hence, 0.1L = 100 mL of the first solution, 900 mL of the second, and option c is correct.

You can learn more about proportions at https://brainly.com/question/24372153

Answer:

Counterclockwise rotation about the origin by 90 degrees about the y axis

Step-by-step explanation:

Answer: 7526

BRANLIEST PLZ

Answer:

A. 2^11

Step-by-step explanation:

(They are basically asking what's 2^4 × 2^7, but with more words.)

I usually do each exponent individually:

2^4 is the same as 2 × 2 × 2 × 2 = 16 (or you could have read the text to figure that out)

2^7 is the same as 2 × 2 × 2 × 2 × 2 × 2 × 2 = 128

Then just multiply 128 and 16 to get 2,048, and see which option also gives you 2,048.

BUT, you can also:

(Combine the exponents together to get your answer. Just remember that if it's multiplication you add them, and if it's division you subtract them.)

2^4 × 2^7

4 + 7 = 11

2^11 (This equals 2,048 btw. You don't even have to check all the options to get the answer).

Hope this helps friend :)

The last part I learned from another user, while answering one of your other questions. I personally find this mind blowing, lol.

Answer:

is 2

Step-by-step explanation:

Answer:

12

Step-by-step explanation:

Problem:

"After breakfast, Samuel had 3/4 of a gallon of juice left in a container. One serving of juice is 1/16 of a gallon. How many servings of juice remained in the container?"

One serving is 1/16 of a gallon.

The amount left is 3/4 gallon.

How many times the amount of 1/16 gallon is in 3/4 gallon?

3/4 ÷ 1/16 = 3/4 × 16/1 = 48/4 = 12

Answer: 12

Answer:

10 PUPPIES

Step-by-step explanation:

Answer: 3=I4I

Step-by-step explanation:Since know that ”Y” = 3 and ”X” = 4 then you can just fillmin the equation in with those values.

Answer:

(-3, -7) is a solution

Step-by-step explanation:

3x + 2y = -23

Plug in the point (-3, -7)

It's a solution if it equals -23

3(-3) + 2(-7)

Multiply

-9 + (-14)

Add

-23

Therefor (-3, -7) is a solution

Answer:P= s(4)

Step-by-step explanation: