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2 years ago

Rearrange the equation so xxx is the independent variable. 6x+y=4x+11y6x+y=4x+11y

Mathematics

2 answers:

ANEK [815]2 years ago

5 0

Answer:

$y = \frac{1}{5} \cdot x$

Step-by-step explanation:

The following equation is rearranged by some algebraic handling:

$6\cdot x + y = 4\cdot x + 11\cdot y$

$2\cdot x = 10\cdot y$

$\frac{1}{5}\cdot x = y$

$y = \frac{1}{5} \cdot x$

slava [35]2 years ago

4 0

Answer:

10x=10y so x and y are the same or x=y

Step-by-step explanation:

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A Create a linear expression

frez [133]

Answer:

(2x+A)(2x+B) = 4x2 + (2B+ 2A)x + AB. Trial and error gives the factorization 4x2 - 3x - 10 - (4x+5)(x- 2) .Step-by-step explanation:

3 0

2 years ago

Assume that different groups of couples use the XSORT method of gender selection and each couple gives birth to one baby. The XS

olganol [36]

Answer:

Mean and Standard deviation for the numbers of girls in groups of 36 births are 18 and 3 respectively.

Step-by-step explanation:

We are given that he X SORT method is designed to increase the likelihood that a baby will be a girl, but assume that the method has no effect, so the probability of a girl is 0.5.

Now consider a group consisting of 36 couples.

The above situation can be represented through binomial distribution;

$P(X=r)=\binom{n}{r} \times p^{r} \times (1-p)^{n-r} ;x=0,1,2,3,.....$

where, n = number of trials (samples) taken = 36 couples

r = number of success

p = probability of success which in our question is probability

of a girl, i.e.; p = 0.5

Let X = Numbers of girls in groups of 36 births

So, X ~ Binom(n = 36, p = 0.5)

Now, mean for the numbers of girls in groups of 36 births is given by;

Mean, E(X) = $n \times p$ = $36 \times 0.5$ = 18

Also, standard deviation for the numbers of girls in groups of 36 births is given by;

Standard deviation, S.D.(X) = $\sqrt{n\times p\times (1-p)}$

= $\sqrt{36\times 0.5\times (1-0.5)}$

= 3

3 0

3 years ago

What is the percent or change-----$84 to 12%

zubka84 [21]

$84 to 12%
10.08
is the answer

6 0

3 years ago

Lily is a lilypad in a small pond. Lily doubles in size each day. On the 20th day she covers the whole pond. On what day was Lil

svetoff [14.1K]

Answer:

19th day

Step-by-step explanation:

So say Lily was 1 when Lily was planted

First day Lily is 2

Second day Lily is 4

Third day Lily is 8

etc...

See the pattern?

The pattern is 2^x

On the 20th day, Lily was 2^20

So when Lily was half, Lily was 2^20 / 2

2^x = 2^20 / 2

2^x = 2^19

On the 19th day, Lily was half.

8 0

3 years ago

Select the equivalent expression (7^2 x 5^6)^4

iris [78.8K]

Answer:

The answer is B.

${( {7}^{2} . {5}^{6}) }^{4} \\ = {7}^{8} . {5}^{24}$

3 0

3 years ago