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3 years ago

Help me out please! thank you!!!!!!

Mathematics

1 answer:

Neko [114]3 years ago

4 0

Answer:

As x increases, y increases. As x decreases, y decreases.

Step-by-step explanation:

Basically the answer is option 2

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The ratio of the same side interior angles of two parallel lines is 33:3. Find the measures of all eight angles formed by the pa

zheka24 [161]

9514 1404 393

Answer:

all 4 acute angles: 15 degrees

all 4 obtuse angles: 165 degrees

Step-by-step explanation:

The sum of same-side interior angles between parallel lines is 180°. The smallest of them will be 3/(33+3) = 1/12 of 180°, or 15°. The largest will be 180° -15° = (33/3)(15°) = 165°. All remaining angles are congruent to one or the other of these.

All four acute angles are 15°; all four obtuse angles are 165°.

4 0

3 years ago

The cost of 5 DVDs and a $15

erastovalidia [21]

Answer:

Step-by-step explanation:

the cost of 5 DVDs and a $15

you didn't ask anything

6 0

3 years ago

Read 2 more answers

Cuantos parque solares hay en china

emmainna [20.7K]

The translation of the question is:

<h3>What are solar parks?</h3>

The solar park is a concentrated zone of development of solar power generation projects and provides developers an area that is well characterized, with proper infrastructure and access to amenities and where the risk of the projects can be minimized.

How many solar parks are there in China?

Huanghe Hydropower Hainan Solar Park – 2.2GW
Tengger Desert Solar Park – 1.55GW
Datong Solar Power Top Runner Base – 1.1GW
Yanchi Ningxia Solar Park – 1GW
Longyangxia Dam Solar Park – 850MW

Learn more about solar energy here:

brainly.com/question/9704099

#SPJ1

7 0

2 years ago

"Select the equation of the least squares line for the data: (34.0, 1.30), (32.5, 3.25), (35.0, .65), (31.0, 6.50), (30.0, 5.85)

yulyashka [42]

Answer:

$y=-1.055 x +37.643$

And the best option would be:

a. ŷ= 37.643-1.0543x

Step-by-step explanation:

We assume that the data is this one:

x: 34.0, 32.5, 35.0, 31.0, 30.0, 27.5, 29.0

y: 1.30, 3.25, 0.65, 6.50, 5.85, 8.45, 6.50

Find the least-squares line appropriate for this data.

For this case we need to calculate the slope with the following formula:

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

Where:

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

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

So we can find the sums like this:

$\sum_{i=1}^n x_i = 34.0+ 32.5+ 35.0+ 31.0+ 30.0+ 27.5+ 29.0
=219$

$\sum_{i=1}^n y_i =1.3+3.25+0.65+6.5+5.85+8.45+6.5=32.5$

$\sum_{i=1}^n x^2_i = 34.0^2+ 32.5^2+ 35.0^2+ 31.0^2+ 30.0^2+ 27.5^2+ 29.0^2
=6895.5$

$\sum_{i=1}^n y^2_i =1.3^2+3.25^2+0.65^2+6.5^2+5.85^2+8.45^2+6.5^2=202.8$

$\sum_{i=1}^n x_i y_i =34*1.3 + 32.5*3.25+ 35*0.65+ 31*6.5+30*5.585 +27.5*8.45 +29*6.5=970.45$

With these we can find the sums:

$S_{xx}=\sum_{i=1}^n x^2_i -\frac{(\sum_{i=1}^n x_i)^2}{n}=6895.5-\frac{219^2}{7}=43.929$

$S_{xy}=\sum_{i=1}^n x_i y_i -\frac{(\sum_{i=1}^n x_i)(\sum_{i=1}^n y_i)}{n}=970.45-\frac{219*32.5}{7}=-46.336$

And the slope would be:

$m=-\frac{46.336}{43.929}=-1.055$

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

$\bar x= \frac{\sum x_i}{n}=\frac{219}{7}=31.286$

$\bar y= \frac{\sum y_i}{n}=\frac{32.5}{7}=4.643$

And we can find the intercept using this:

$b=\bar y -m \bar x=4.643-(-1.055*31.286)=37.643$

So the line would be given by:

$y=-1.055 x +37.643$

And the best option would be:

a. ŷ= 37.643-1.0543x

5 0

4 years ago

What is the area of this composite shape?

ZanzabumX [31]

Here,

In Right angle triangle,

base = 12 m

height = 8 m

Now,

◇ Area = 1/2*b*h

= 1/2*12*8

= 48 m^2

In semicircle,

radius = 4 m

Then,

◇Area" = 1/2*22/7*r^

= 1/2*22/7*4*4

= 25.14m^2

Again,

◆Total Area = Right triangle + semicircle

= (48+25.14) m^2

= 73.14 m^2

This is right answer...

I hope you understand...

Mark me as brainliest...

Thank you ♥♥

7 0

3 years ago