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3 years ago

What is the value of y?.

Mathematics

2 answers:

timofeeve [1]3 years ago

4 0

Answer:

54 degrees

Step-by-step explanation:

180- 72 = 108

108 divided by 2 = 54

Alex787 [66]3 years ago

3 0

Answer:

54°

Step-by-step explanation:

There is 180° is a triangle. We have 72° given already

180 - 72 = 108

Since there are two y's we divide by two

108 ÷ 2 = 54°

I hope this helps! ^_^

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An appliance store decreases the price of a 19-in. television set 16% to a sale price of $535.92. What was the original price

Llana [10]

621.67. First of all you want to convert the 16% to a .16 so you can multiply it. From then you can multiply 535.92 times .16 to find the amount of money that was taken off of the original price. The number you get from the previous equation you have to add to 535.92 to final original price.

7 0

4 years ago

Read 2 more answers

Let x be a random variable representing percentage change in neighborhood population in the past few years, and let y be a rando

Lisa [10]

Answer:

$m=\frac{2506.833}{604.833}=4.1447$

Nowe we can find the means for x and y like this:

$\bar x= \frac{\sum x_i}{n}=\frac{77}{6}=12.833$

$\bar y= \frac{\sum y_i}{n}=\frac{587}{6}=97.833$

And we can find the intercept using this:

$b=\bar y -m \bar x=97.833-(4.1447*12.833)=44.644$

So the line would be given by:

$y=4.1447 x +44.644$

Step-by-step explanation:

$m=\frac{S_{xy}}{S_{xx}}$

Σx = 77, Σy = 587, Σx2 = 1593, Σy2 = 70,533, and Σxy = 10040.

Where:

$S_{xy}=\sum_{i=1}^n x_i y_i -\frac{(\sum_{i=1}^n x_i)(\sum_{i=1}^n y_i)}{n}$

$S_{xx}=\sum_{i=1}^n x^2_i -\frac{(\sum_{i=1}^n x_i)^2}{n}$

With these we can find the sums:

$S_{xx}=\sum_{i=1}^n x^2_i -\frac{(\sum_{i=1}^n x_i)^2}{n}=1593-\frac{77^2}{6}=604.833$

$S_{xy}=\sum_{i=1}^n x_i y_i -\frac{(\sum_{i=1}^n x_i)(\sum_{i=1}^n y_i){n}}=10040-\frac{77*587}{6}=2506.833$

And the slope would be:

$m=\frac{2506.833}{604.833}=4.1447$

Nowe we can find the means for x and y like this:

$\bar x= \frac{\sum x_i}{n}=\frac{77}{6}=12.833$

$\bar y= \frac{\sum y_i}{n}=\frac{587}{6}=97.833$

And we can find the intercept using this:

$b=\bar y -m \bar x=97.833-(4.1447*12.833)=44.644$

So the line would be given by:

$y=4.1447 x +44.644$

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3 years ago

. In Habib High School 275 of 300 students received a grade of A, while in Public Hall 120 out of 150 students received a grade

nevsk [136]

Habib High School had the better record. If we convert 275/300 and 120/150 to fractions Habib High School would have 0.92 percent when compared to 0.80 of Public Hall.

3 0

3 years ago

What is the next term in the geometric sequence? 7,14,28, __

aleksandr82 [10.1K]

We have to look for the pattern in the numbers, so we can figure out what the next term in the sequence is !

It looks like, each number is multiplied by 2!

7 × 2 = 14

14 × 2 = 28

So, what's next?

28 × 2 = ?

The next term in the geometric sequence is ... 56!

I hope I helped :)

Comment if you have any confusion !

7 0

3 years ago

Read 2 more answers

On Thursday, a company received 10 boxes with 16 desk calendars

Jet001 [13]

Answer:

340

Step-by-step explanation:

10 ×16=160

12×15=180

160+180=340 so a total of 340 calendars

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3 years ago