PLEASE HELP ASAP (next 4 minutes)!!!!! thank you!!!

What would be the formula for this 1/4 circle with the radius as 7ft??

Naily [24]

Answer:

1/4(πr²)

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers

Using the set of data below, which statements are true? Check all that apply. 13, 11, 16, 12, 42, 8 The mean of this data set is

Andreas93 [3]

The correct statements about the given data are as follows;

The mean of this data set is 17.

The median is 14.5.

Given that

Using the set of data below.

13, 11, 16, 12, 42, 8

According to the question

Using the set of data below.

13, 11, 16, 12, 42, 8

<h3>Mean is the average of the given data.</h3>

The mean of the given data can be calculated as,

$\rm Mean =\dfrac{Sum \ of \ all \ data}{Total \ number \ of \ observation}\\\\Mean=\dfrac{13+11+16+12+42+8}{6}\\\\Mean=\dfrac{102}{6}\\\\Mean=17$

The mean of this data set is 17.

Medium; The medium is the average of the middle terms.

The medium of the given data can be calculated as,

$\rm Median=\dfrac{16+12}{2}\\\\Median=\dfrac{28}{2}\\\\Median=14\\\\$

The median is 14.

To know more about Mean click the link given below.

brainly.com/question/1241759

6 0

3 years ago

Solve the equation 3x2 + 11z – 4= 0.<br>Help I need to plug these in and find the two answers for x

Lorico [155]

Step-by-step explanation:

Explanation:

Given:

−3x2+12x+1=0

This is in the form:

ax2+bx+c=0

with a=−3, b=12 and c=1

In order to decide which method to use, we can first examine the discriminant:

Δ=b2−4ac=122−4(−3)(1)=144+12=156

Since Δ>0 we can tell that the quadratic has 2 distinct real solutions, but because it is not a perfect square we can also tell that those solutions are irrational.

So there is no rational factorisation and we can discount the use of an AC method or similar.

We can use the quadratic formula or we can complete the square.

If we choose to use the quadratic formula, then we find:

x=−b±√b2−4ac2a

x=−b±√Δ2a

x=−(12)±√1562(−3)

x=−12±2√39−6

x=2±√393

When completing the square, note that b=12 is already divisible by a=−3 and by

6 0

3 years ago

Tacoma's population in 2000 was about 200 thousand, and has been growing by about 8% each year. If this continues, what will Tac

Anestetic [448]

Answer:

Tacoma's population in 2014 will be 587,439 people

Step-by-step explanation:

we know that

The equation of a exponential growth function is given by the formula

$y=a(1+r)^x$

where

y is Tacoma's population in thousand

x is the number of years since 2000

r is the rate of change

a is the initial value

we have

$a=200\\r=8\%=8/100=0.08$

substitute

$y=200(1+0.08)^x$

$y=200(1.08)^x$

what will Tacoma's population be in 2014?

Find the value of x

$x=2014-2000=14\ years$

substitute the value of x

$y=200(1.08)^{14}=587.439\ thousand$

therefore

Tacoma's population in 2014 will be 587,439 people

5 0

3 years ago

Can somebody help me please

SpyIntel [72]

<h2>Answer:</h2><h3>f(4) = 122</h3>

________________________________________________

<h3>Calculate</h3>

$Substitute\ x=4\ into\\ f(x)=7x^2+4x-6$

_________________________________________________

<h3>Substitute</h3>

$f(4)=7\times 4^2+4\times 4-6$

___________________________________________________

<h3>Calculate the power</h3>

$f(4)=7\times 16+4\times 4-6$

___________________________________________________

<h3>Calculate the product or quotient</h3>

$f(4)=112+4\times 4-6\\ f(4)=112+16-6$

___________________________________________________

<h3>Calculate the sum or difference</h3>

$f(4)=128-6\\ f(4)=122$

<em>I hope this helps you</em>

6 0

3 years ago