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Yanka [14]
3 years ago
15

SPENDING ALL MY POINTS FOR THIS PLEASE LOOK AT PHOTO AND HELP! Please

Mathematics
1 answer:
Iteru [2.4K]3 years ago
5 0

Answer:

1a - reduction

2a- enlargement

3a- reduction

4a- enlargement

Step-by-step explanation:

when the scale factor is greater than 100% it is making it larger, when less than 100% size it is making it smaller. for every answer do the original number (ex #1 would be 48 inches) and multiply it by the scale factor in decimal form, by moving the decimal over two places (ex #1 the 25% would become .25 or 1/4). therefore #1 would be an equation like 48 x 0.25= 12

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Identify the domain and range of the function f(x) = x2 - 10x + 21
My name is Ann [436]
Idk sorry I am not that good at math :)
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3 years ago
A committee of 15 members is voting on a proposal. Each member casts a yea or nay vote. On a random voting basis, what is the pr
Igoryamba

Answer:

0.006% probability that the final vote count is unanimous.

Step-by-step explanation:

For each person, there are only two possible outcomes. Either they vote yes, or they vote no. The probability of a person voting yes or no is independent of any other person. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

And p is the probability of X happening.

Random voting:

So 50% of voting yes, 50% no, so p = 0.5

15 members:

This means that n = 15

What is the probability that the final vote count is unanimous?

Either all vote no(P(X = 0)) or all vote yes(P(X = 15)). So

p = P(X = 0) + P(X = 15)

In which

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 0) = C_{15,0}.(0.5)^{0}.(0.5)^{15} = 0.00003

P(X = 15) = C_{15,15}.(0.5)^{15}.(0.5)^{0} = 0.00003

So

p = P(X = 0) + P(X = 15) = 0.00003 + 0.00003 = 0.00006

0.006% probability that the final vote count is unanimous.

7 0
2 years ago
Distribute. -3(-2x - 1)
ANTONII [103]

I believe the answer should be 6x+3

6 0
3 years ago
Read 2 more answers
I know you want those easy points but this aint easy. please help
jekas [21]

Answer:

Answer Below

Step-by-step explanation:

a. 2L+2W≥40

thats equal to 12+2W≥40 since it says the length is 6

That means 2W≥28

That means width ≥ 14

so the width can be 14 or greater

b. Smallest possible width is 14 because the inequality

6 0
3 years ago
Read 2 more answers
What is the value of the lower quartile?
murzikaleks [220]

Answer:

b.-4

Step-by-step explanation:

Because the lower quartile is the lower line on the box and whisker plot

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