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Solve for XHello, my daughter needs help with Trigonometry. I was never very gifted at math, and cannot remember too much about this subject. Please Help!

Answers

Answer 1

Answer:

ANSWER:

The value of x is 25

STEP-BY-STEP EXPLANATION:

We can calculate the value of x by means of the Pythagorean theorem that says the following:

$\begin{gathered} h^2=a^2+b^2 \n h=x \n a=7 \n b=24 \end{gathered}$

replacing:

$\begin{gathered} x^2=7^2+24^2 \n x^2=49+576 \n x=\sqrt[]{625} \n x=25 \end{gathered}$

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Which figures demonstrate a single reflection?Select each correct answer.

Which number produces an irrational number when added to? 3\4

Answers

Answer:

Step-by-step explanation:

Any other irrational number, actually, so √2 would also do the trick.

Answer:

Pi, since pi is irrational

Step-by-step explanation:

Any irrational number, such as √2

Ten samples of coal from a Northern Appalachian source had an average mercury content of 0.242 ppm with a standard deviation of 0.04 ppm. Find a 95% confidence interval for the mean mercury content of coal from this source. Round the answers to four decimal places.

Answers

Answer:

0.2172<x<0.2668

Step-by-step explanation:

The formula for calculating the confidence interval is expressed as;

CI = xbar ± (z*s/√n)

xbar is the average = 0.242ppm

z is the z score at 95% confidence = 1.96.

s is the standard deviation = 0.04pm

n is the sample size = 10

substitute the values into the formula;

CI = xbar ± (z*s/√n)

CI = 0.242 ± (1.96*0.04/√10)

CI = 0.242 ± (1.96*(0.04/3.1623))

CI = 0.242 ± (1.96*(0.01265))

CI = 0.242 ± (0.02479)

CI = (0.242-0.02479, 0.242+0.02479)

CI = (0.2172, 0.2668)

Hence a 95% confidence interval for the mean mercury content of coal from this source is 0.2172<x<0.2668.

The solution of the equation x2-6x=0 is ?

Answers

The answer is x = 0

X=0 ............................

CAN SOMEONE PLEASE ANSWER THIS QUESTION ASAP!!

Answers

hi, the solving is in the image, answer is 50 ft

have a nice day :)

Write a function in terms of t that represents the situation.A population of 210,000 increases by 12.5% each year

y=

Answers

The exponential function is given by $y = 210000(1.125)^t \n$

exponential function

An exponential function is in the form:

$y=ab^x$

Where a is the initial value of y and b is the multiplier factor

Let y represent the population after t years.

Given an initial population of 210000, hence:

a = 210000

The population increases by 12.5% each year, hence:

b = 100% + 12.5% = 112.5% = 1.125

The exponential function is given by $y = 210000(1.125)^t \n$

Find out more on exponential function at: brainly.com/question/12940982

What is 20-2 in this question

Answers

Answer:20-2=18

Step-by-step explanation: it is 18 because 20-2 is 18

20-2=18
If you take away 2 from 20 you are left with 18.

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