MATHEMATICS HIGH SCHOOL

A game spinner has regions that are numbered 1 through 8. if the spinner is used twice, what is the probability that the first number is a 3 and the second is a 6? a. 116 b. 164 c. 964 d. 23

Answers

Answer 1

Answer:

The probability that the first number is a 3 and the second is a 6 is 1/64

What is probability?

It is a branch of mathematics that deals with the occurrence of a random event.

Given:

spinner had region numbered from 1 to 8

So, the probability on the spinner has an equally likely chance of being selected = 1/8.

P(3) = 1/8

P(6) = 1/8

Thus, probability that the first number is a 3 and the second is a 6

= (1/8) × (1/8)

= 1/64

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Answers

12 and the other answer will be 9

Answer:

12 and the other answer will be 9

Step-by-step explanation:

Which equation represents the line that passes through the points (6 -3) and (-4 -9)

Answers

This answer will get deleted...but I do not have time to post the work on this one..

m= 3/5

b=-33/5

$y= (3)/(5) x+- (33)/(5)$

Thus, your equation.

Lets first find the slope:
(y₂-y₁)=m(x₂-x₁)
(-9-(-3)) = m(-4-6)
-6 = m(-10)
Isolate m:
$(-6)/(-10)$ = $(m(-10))/(-10)$
-10 and -10 cancels out
$(-6)/(-10)$ = m
$(3)/(5)$ = m

Now we know the slope, which is $(3)/(5)$

The equations is
y = mx + c
Take any two coordinates from the given above

Im taking (6,-3)
Plug in those coordinates and the slope to the formula

-3 = $(3)/(5)$ (6) + c
-3 = $(18)/(5)$ + c
Isolate c
-3 - $(18)/(5)$ = c
$- (33)/(5)$ = c
which gives us:
-6.6 = c

Now plug in the slope and c in the equation:

y = $(3)/(5)$ x+ (-6.6)
or
y = $(3)/(5)$ x +(- $(33)/(5)$ )

Alex and his friends are studying for a geometry test and one of the main topics covered is parallel lines in a plane. They each write down what they think it means for two distinct lines in a plane to be parallel:Rachel writes, ''two distinct lines are parallel when they are both perpendicular to a third line.''

Alex writes, ''two distinct lines are parallel when they do not meet.''

Briana writes, ''two distinct lines are parallel when they have the same slope.''

Analyze each definition, indicating if it is mathematically correct and if it has any drawbacks.

helpp pleaseee

Answers

Briana is correct because she is smart

Step-by-step explanation:

Briana is correct because she is smart

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Answers

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Is 7 weeks less or greater than 52 days

Answers

Hey there! :) So 7 weeks = 49 days, right? In order to get 49, you do 7(weeks) x 7(days per week) and get 49. Now, we compare. 49 < 52. 52 is greater.

Hope it helps! :D Have a great evening!

The same sample of 25 seniors from the urban school district with the mean and standard deviation N(450, 100). A 95% confidence interval for µ for the population of seniors with a margin of error of ± 25 is used. What is the smallest sample size we can take to achieve this same margin of error?26

45

50

62

69

Answers

I have some notes here that might help you answer the problem in your own:

The formula to calculate a minimum sample size is as follows:

n = [z*s/E]^2

Where n is the sample size, z is the z value for the level of confidence chosen, s is the estimated standard deviation and E is the allowable error.

I hope my answer has come to your help. God bless and have a nice day ahead!

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