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3 years ago

Please help me with this question! i will give brainiest if correct! (if you show me how to lol i have no idea how)

Mathematics

1 answer:

Nitella [24]3 years ago

7 0

Answer:

y(2x² + y) / x(5y² - 6x)

Step-by-step explanation:

Simplify the numerator:

1/x² + 2/y =
y/(x²y) + 2x²/(x²y) =
(2x² + y)/(x²y)

Simplify the denominator:

5/x - 6/y² =
5y²/(xy²) - 6x/(xy²) =
(5y² - 6x) / (xy²)

Simplify the fraction:

(2x² + y)/(x²y) ÷ (5y² - 6x) / (xy²) =
(2x² + y)/(x²y) × xy² / (5y² - 6x) =
y(2x² + y) / x(5y² - 6x)

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What is 7(-3). I am confuse and don't understand.

emmasim [6.3K]

7(-3) is an example of multiplication. What the question wants you to do is multiply the outside number (7) by the inside number (-3).
Basically you are just multiplying -3 x 7.
Your product is -21

7 0

3 years ago

the leungs sold a valuable painting for 55,000. this price is 1,000 more than twice the amount they originally paid for it. how

LekaFEV [45]

55,000-1000= 54,000
54,000/2= 27,000
The originally price was $27,000

5 0

3 years ago

Every day a kindergarten class chooses randomly one of the 50 state flags to hang on the wall, without regard to previous choice

Romashka [77]

Answer:

a) $S=50$

$P(X)=0.02$

b) $P(W,M,C)=8*10^-^6$

c) $P(W_2_3)=1.18*10^-^3$

Step-by-step explanation:

From the question we are told that

Sample space S=50

Sample size n=30

a)Generally the sample space S is

$S=50$

The probability measure is given as

$P(X)=\frac{1}{50}$

$P(X)=0.02$

Generally the probability that the class hangs Wisconsin’s flag on Monday, Michigan’s flag on Tuesday, and California’s flag on Wednesday is mathematically given as

Probability of each one being hanged is

$P(X)=\frac{1}{50}$

Therefore

$P(W,M,C)=\frac{1}{50} *\frac{1}{50}* \frac{1}{50}$

$P(W,M,C)=\frac{1}{125000}$

$P(W,M,C)=8*10^-^6$

c)Generally the probability that Wisconsin’s flag will be hung at least two of the three days is mathematically given as

Probability of two days hung +Probability of three days hung

Therefore

$P(W_2_3)=^3C_2 (1/50) * (1/50) * (49/50) +^3C_3 (1/50) * (1/50) *(1/50)$

$P(W_2_3)=148 / 125000$

$P(W_2_3)=1.18*10^-^3$

3 0

3 years ago

Which expression is equivalent to -16 - 9? O A. 16+9 O B. -16 +(-9) O C. -16 + 9 O D. 16 + (-9)

g100num [7]

Answer:

Step-by-step explanation:

because -16+(-9) is essentially the same thing because you're adding the -9 to the -16

7 0

3 years ago

1st q pls help i dont under stand how the answer is 12000

mixas84 [53]

Answer:

See below

Step-by-step explanation:

1/3 (300000) = 100 000 80% of this = 80 000

2/5 (300000) = 120000 125% of this = 150 000 total so far = 230 000

Overall 10% profit would yield 300000(1.1) = 330 000

the remaining land needs to sell for

330 000 - 230000 = 100 000

3 0

2 years ago