All categories

3 years ago

What is the definition of a function

Mathematics

1 answer:

cricket20 [7]3 years ago

8 0

An activity or purpose natural to or intented for a pearson or thing

You might be interested in

I need help with this question <br>-4 (2p+ 3) = -(p+1) - 2

ankoles [38]

Answer:

-4 (2p+ 3) = -(p+1) - 2

-8p -12 = -p-1-2

-7p=9

p=-9/7

Step-by-step explanation:

6 0

3 years ago

Need some help please

katovenus [111]

Answer:

the answer is 40.1 cm

Step-by-step explanation:

$\cos( \alpha ) = adjacent \div hypotenuse$

The adjacent in the triangle is 23cm and the Alpha is 55 degrees, so just insert the formula to find the adjacent which is x .

8 0

3 years ago

Suppose that prior to conducting a coin-flipping experiment, we suspect that the coin is fair. How many times would we have to f

BabaBlast [244]

Answer:

153 times

Step-by-step explanation:

We have to flip the coin in order to obtain a 95.8% confidence interval of width of at most .14

Width = 0.14

ME = $\frac{width}{2}$

ME = $\frac{0.14}{2}$

ME = $0.07$

$ME\geq z \times \sqrt{\frac{\widecap{p}(1-\widecap{p})}{n}}$

use p = 0.5

z at 95.8% is 1.727(using calculator)

$0.07 \geq 1.727 \times \sqrt{\frac{0.5(1-0.5)}{n}}$

$\frac{0.07}{1.727}\geq sqrt{\frac{0.5(1-0.5)}{n}}$

$(\frac{0.07}{1.727})^2 \geq \frac{0.5(1-0.5)}{n}$

$n \geq \frac{0.5(1-0.5)}{(\frac{0.07}{1.727})^2}$

$n \geq 152.169$

So, Option B is true

Hence we have to flip 153 times the coin in order to obtain a 95.8% confidence interval of width of at most .14 for the probability of flipping a head

6 0

3 years ago

John find 1/5 of the bar chocolate he bought was already eaten by his brother. He eat 3/4 of what was remaining. Find the portio

larisa86 [58]

Answer:

1/5 is left.

Step-by-step explanation:

Portion remaining after the bar was eaten by his brother = 1 - 1/5 = 4/5.

Portion remaining after John ate 3/4 of this = 4/5 - 3/4* 4/5 = 4/5 - 3/5

= 1/5.

3 0

3 years ago

<img src="https://tex.z-dn.net/?f=%20%7Bx%7D%5E%7B2%7D%20%20%2B%2010%20-%2021%20%3D%20y" id="TexFormula1" title=" {x}^{2} + 10

myrzilka [38]

Answer:

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers