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3 years ago

Solve: | −2n | + 10 = −50 (Find Solution)

Mathematics

1 answer:

CaHeK987 [17]3 years ago

4 0

Answer:

No Solution

Step-by-step explanation:

| −2n | + 10 = −50

Subtract 10 on both sides

|-2n|+10-10=-50-10

Simplify

|-2n=|=-60

No Solution

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A baseball diamond is a square whose sides are 9090 feet long. Suppose a player running from second base to third base has a spe

Arada [10]

<h2>Answer:</h2>

Rate of change of distance at that instant = 0.066 ft/sec

<h2>Step-by-step explanation:</h2>

In the question,

The baseball field is in the square diamond shape.

Side length of square = 9090 ft.

Now,

The player runs from the 2nd base to the 3rd base.

Speed of running of player, v = 30 ft/ sec.

Distance of the player from third base = 20 ft.

Now,

Let us say the distance of the player from the Home base is = l

So,

In the triangle using the Pythagoras theorem, we get,

$l^{2}=x^{2}+s^{2}$

where, 'x' is the distance of the player from the third base and 's' is the side of the square field base.

So,

$l^{2}=x^{2}+s^{2}\\On\,differentiating\,we\,get,\\2l\frac{dl}{dt}=2x\frac{dx}{dt}\\l\frac{dl}{dt}=x\frac{dx}{dt}\\$

Now,

Also, at the moment when, x = 20,

Length from the Home base is,

$l^{2}=20^{2}+9090^{2}\\l=9090.022\,ft.$

Now,

On putting we get,

$l\frac{dl}{dt}=x\frac{dx}{dt}\\(9090.022)\frac{dl}{dt}=20(30)\\\frac{dl}{dt}=0.066\,ft./sec.$

Therefore, the rate of change of distance from the home plate is 0.066 ft/s

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4 years ago

Instructions: Type the correct answer in each box. If necessary, use / for the fraction bar.

Alinara [238K]

The slope of diagonal AB is 0 and its equation is y=2.

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3 years ago

Two studies were completed in Florida. One study in northern Florida involved 2,000 patients; 64% of them experienced flulike sy

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Given:
Northern Florida: 2,000 patients ; 64% experienced flulike symptoms during December
Southern Florida: 3,000 patients ; 54% experienced flulike symptoms during December

Standard error = √[p(1-p)/n]

NF = √[0.64(1-0.64)/2000] = √[(0.64*0.36)/2000] = 0.0107 or 1.07%
SF = √[0.54(1-0.54)/3000] = √[(0.54*0.46)/3000] = 0.0091 or 0.91%

smallest margin of error for a 95% confidence interval

NF: Em ≈ 0.98/√2,000 = 0.98/44.72 = 0.0219 or 2.19%
SF: Em ≈ 0.98/√3,000 = 0.98/54.77 = 0.0178 or 1.78%

MY ANSWER:

B.The southern Florida study with a margin of error of 1.8%.

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4 years ago

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Evaluate the expression. 8 (( 4) 3)? PLEASE HELP ASAP

Roman55 [17]

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3 years ago

Help I don’t know how to do this please help

igor_vitrenko [27]

SOLUTION:

Case: Trigonometry

Method:

Let the distance between the Sun and the Earth be 'z'

The relationship between x, y and z is:

$\begin{gathered} tan(x)=\frac{opp}{adj} \\ tan(x)=\frac{y}{z} \\ z=\frac{y}{tan(x)} \\ z=ycot(x) \end{gathered}$

Final answer:

In sentence,

The distance between the Sun and the Earth is the product of the distance between the Earth and the moon and the cotangent of the angle x formed using the lines from the Earth and the moon.

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1 year ago