All categories

4 years ago

Can someone help me solve these systems using elimination?

Mathematics

1 answer:

yawa3891 [41]4 years ago

5 0

Answer:

https://www.mathpapa.com/elimination-calculator/

Step-by-step explanation:

You might be interested in

DJ Larissa is making a playlist for a friend; she is trying to decide what 10 songs to play and in what order they should be pla

likoan [24]

The total number of ways are formed is 4.43 x 10^10 by rounding to the hundredths place.

According to the statement

we have given that the some numbers of the songs which are added by the larrisa in her playlist.

And we have to tell the ways which are formed with the help of the combination and permutations.

So, For this purpose we know that the

The first condition we have given that the

"play no more than 4 blues songs" - indicates playlist can contain 0, 1, 2, 3, or 4 blues songs. You need to analyze five different cases and add them up together in the end. From 7 blues songs, you can either "pick" 0, 1, 2, 3, or 4. Since order matters, it's a permutation, not a combination.

Afterwards, it gets tricky. Consider the first case, where we have 0 blues songs. This means that there are 10 spaces for the remaining (3+5+7 = 15) songs, which means that they can be arranged in (7P0 ∙ 15P10) ways.

For the next case, where we have 1 blues songs, it means that there are 9 spaces for the remaining 15 songs, which means that they can be arranged in (7P1 ∙ 15P9) ways. Continue doing this for the cases of 2, 3, and 4 blues songs and add up all the cases together.

And from this way we get the all combinations which are formed.

So, For this purpose

n = (7P0 ∙ 15P10) + (7P1 ∙ 15P9) + (7P2 ∙ 15P8) + (7P3 ∙ 15P7) + (7P4 ∙ 15P6) = 4.43459016×1010,

which rounded to the hundredths place, is 4.43 x 10^10 possible playlists.

So, The total number of ways are formed is 4.43 x 10^10 by rounding to the hundredths place.

Learn more about the combination and permutations here

brainly.com/question/3901018

#SPJ1

8 0

2 years ago

I’LL MARK YOU BRAINLIEST PLS HELP<br><br> What statement is true about segment AB?

chubhunter [2.5K]

Answer:

First statement is correct

Step-by-step explanation:

Segment AB is tangent to circle C because $3^2 +4^2 =5^2$

6 0

3 years ago

Can I please get help with this one? it's geometry

Tanya [424]

The only correct answer is "B. Angle DBC".

7 0

3 years ago

Please help it’s urgent

blagie [28]

Answer:

sin theta = opp/ hypotenuse

Step-by-step explanation:

sin theta = opp/ hypotenuse

cos theta = adj/ hypotenuse

tan theta = opp/ adj

In this case we know the opposite and the hypotenuse

3 0

3 years ago

4 men and 6 women are ranked according to their scores on an exam. Assume that no two scores are alike, and that all 10! 10 ! po

anygoal [31]

Answer:

a) $P(X=2)=\frac{2}{15}$

b) $P(X=3)=\frac{1}{30}$

c) P(X=6)=0

d) P(X=9)=0

Step-by-step explanation:

We know that are 4 men and 6 women are ranked according to their scores on an exam. X = 1 indicates that a man achieved the highest score on the exam.

a) We calculate P(X=2).

We calculate the number of possible combinations

$C^{10}_{2}=\frac{10!}{2! (10-2)!}=\frac{10\cdot 9\cdot 8!}{2\cdot 1 \cdot 8!}=45$