2 years ago

If f={(0,2),(2,6),(3,5),(4,9)} what is f^(-1)(9)

Mathematics

1 answer:

tangare [24]2 years ago

7 0

Answer is 9 f-^1

I hope this correct :D

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In a poll, 37% of the people polled answered yes to the question "Are you in favor of the death penalty for a person convicte

Nimfa-mama [501]

Answer:

2239

Step-by-step explanation:

Given-

Percent of peopl polling yes to the question "Are you in favor of the death penalty for a person convicted of murder?" $= 37$ %

Margin error in the poll $= 2$ %

Confidence Interval $= 95$ %

The alpha value is $1 -0.95 =0.05$

The $z_\frac{\alpha }{2}$ for Confidence Interval of $95$ % $= 0.196$

The sample size is given by

$n = p*q*(\frac{z}{e} )^2$

Where,

$p = \frac{37}{100} = 0.37 q = 100-0.37 = 0.63 e =2/100 = 0.02 z = 1.96 (critical value)n = p*q*(\frac{z}{e} )^2 = 0.37 * 0.63(\frac{1.96}{0.02} )^2 \\n = 2238.69\\n= 2239$

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2 years ago

A spinner is made of three equal sections blue green and red if I spend spend 180 times how many times I expect to get red as ou

ruslelena [56]

60 times

You have a 1/3 chance each spin.

1/3 = x/180
180 = 3x
x = 60

7 0

2 years ago

Write 420 as a product 9f prime numbers

stich3 [128]

Answer:

2, 2, 3, 5, 7 that is the farthest you can go

Step-by-step explanation:

2,2,3,5,7 prime factorization of 420 but impossible to get 9 factors

5 0

2 years ago

How many cubic centimeters of water can this paper cone cup hold?

Igoryamba

Answer:

150.72 cubic centimeter

Step-by-step explanation:

Given:-

Height of cone (h) = 9cm

Diameter of cone(d)=8cm

radius of cone(r)= $\frac{d}{2}$ = $\frac{8}{2} =4cm$

To calculate= Volume of cone( $V_{cone}$ )

$Volume\ of\ cone(V_{cone}) =\frac{1}{3} \times \pi \times r^{2} \times h$

$=\frac{1}{3} \times 3.14\times 4^{2} \times 9$

Volume of cone( $V_{cone}$ ) $=150.72\ cubic\ centimeter$

Therefore paper cone cup can hold 150.72 cubic centimeter of water.

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3 years ago

Your grocery bill before taxes was $265.24. You have to pay 7.3% sales tax. How much is your total grocery bill?

tamaranim1 [39]

Answer:

$284.60

Step-by-step explanation:

7.3% of $265.24 = 19.36252,

So the tax is $19.36.

19.36 + 265.24 = 284.60

So the total grocery bill is $284.60.

6 0

2 years ago

Read 2 more answers