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2 years ago

Please help ASAP!!!!

Mathematics

2 answers:

katrin [286]2 years ago

6 0

The answer is B i had this problem.

Ira Lisetskai [31]2 years ago

3 0

Answer: OPTION B

Step-by-step explanation:

Multiply both denominators to find the Least Common Denominator:

$LCD=(3y-4)(y^2)$

Now, divide each original denominator by the LCD and multiply the result by each numerator. Then:

$=\frac{(6y^2+2y)(y^2)-(9y-7)(3y-4)}{(3y-4)(y^2)}$

Applying Distributive property, you get:

$=\frac{6y^4+2y^3-(27y^2-36y-21y+28)}{3y^3-4y^2}\\\\=\frac{6y^4+2y^3-27y^2+36y+21y-28}{3y^3-4y^2}$

Add the like terms in the numerator:

$=\frac{6y^4+2y^3-27y^2+57y-28}{3y^3-4y^2}$

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Question on image. will report answers out of question. Thank you

olchik [2.2K]

Answer:

84°

Step-by-step explanation:

< DEB = ½× (31+ 137) = ½× (168) = 84°

3 0

3 years ago

A manufacturer of t-shirts marks a shirt as "irregular" when it has defects such as crooked seams, stains, rips, or holes. A sma

MaRussiya [10]

Answer:

The test statistic value is 1.474.

Step-by-step explanation:

In this case we need to determine whether the plant is making a higher than expected number of irregular t-shirts.

If more than 8% of the t-shirts manufactured at a plant are classified as irregular, the manager has to do an investigation to try to find the source of the increased mistakes in the manufacturing process..

The hypothesis for this test can be defined as follows:

H₀: The proportion of irregular t-shirts is 8%, i.e. p = 0.08.

Hₐ: The proportion of irregular t-shirts is more than 8%, i.e. p > 0.08.

The information provided is:

n = 100

X = number of irregular t-shirts = 12

Compute the sample proportion as follows:

$\hat p=\frac{X}{n}=\frac{12}{100}=0.12$

Compute the test statistic as follows:

$t=\frac{\hat p-p}{\sqrt{\frac{p(1-p)}{n}}}$

$=\frac{0.12-0.08}{\sqrt{\frac{0.08(1-0.08)}{100}}}\\\\=1.47441\\\\\approx 1.474$

Thus, the test statistic value is 1.474.

4 0

2 years ago

How can you tell Is something is a unit rate

ArbitrLikvidat [17]

Unit rate is a ratio between two different units with a denominator of one. When we divide a fraction's numerator by its denominator, the result is a value in decimal form. For example: 8/4 = 2 and 3/6 = 0.5. When we write numbers in decimal form, we can write them as a ratio with one as the denominator.

For example, we can write 2 as 2/1, and 0.5 as 0.5/1. However, since that approach can be a little clumsy, we usually drop the one. That said, it's important to remember the one is there, especially when working with unit rates.

For instance, 8 miles/4 hours = 2 miles/hour. Notice again that, while we did not include the 1, we did include the unit 'hour' Miles per hour is a familiar expression, as are unit rates such as:

interest/amount invested

revolutions/minute

salary/year

Conversationally, the word ''per'' indicates we are using a unit rate.

4 0

3 years ago

The price of a technology stock has risen $9.65 today. Yesterday’s price was $9.58 find the percentage increase round your answe

bezimeni [28]

1% (I'm pretty sure)

Step-by-step explanation:

you would do 9.65 ÷ 9.58 to to get 1.0073 and rounding it would give you 1

3 0