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Leno4ka [110]
4 years ago
12

50 points!!!

Mathematics
1 answer:
mixer [17]4 years ago
5 0
<h3 /><h3 /><h3><em><u>Statistical researchers often use a linear relationship to predict the (average) numerical value of Y for a given value of X using a straight line (called the regression line). If you know the slope and the y-intercept of that regression line, then you can plug in a value for X and predict the average value for Y.</u></em></h3>

<em><u>hope</u></em><em><u> </u></em><em><u>it</u></em><em><u> </u></em><em><u>helps</u></em><em><u> </u></em>

<em><u>please</u></em><em><u> </u></em><em><u>mark</u></em><em><u> </u></em><em><u>brainliest</u></em><em><u> </u></em>

<em><u>and</u></em><em><u> </u></em><em><u>follow</u></em>

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The perpendicular bisectors of sides AC and BC of △ABC intersect side AB
tiny-mole [99]

The measure of ∠ACB will be 110°

<u><em>Explanation</em></u>

According to the diagram below, DE and DF are the perpendicular bisectors of AC and BC respectively and they intersect side AB at points P and Q respectively.

So, AE=CE and CF= BF

Now, <u>according to the SAS postulate</u>, ΔAPE and ΔCPE are congruent each other. Also, ΔCFQ and ΔBFQ are congruent to each other.

That means, ∠PCE = ∠PAE  and ∠FCQ = ∠FBQ

As ∠CPQ = 78° , so  ∠PCE + ∠PAE = 78°  or,  ∠PCE = \frac{78}{2}= 39°                                    and as ∠CQP = 62° , so ∠FCQ + ∠FBQ = 62° or, ∠FCQ = \frac{62}{2}=31°

Now, in triangle CPQ,  ∠PCQ = 180°-(78° + 62°) = 180° - 140° = 40°

Thus, ∠ACB = ∠PCE + ∠PCQ + ∠FCQ = 39° + 40° + 31° = 110°



7 0
3 years ago
Does the table represent an exponential function? Yes or No.
igor_vitrenko [27]
With the given data, the first step to take is to use MS excel to plot the data then determine the trendline in which the equation's r2 value is closest to 1. From the plot obtained from Excel, the plot is a second degree polynomial and not an exponential function. the answer hence is no.
7 0
4 years ago
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Find the missing value no trolling please
White raven [17]

Answer: 2

The equivalent ratios are 1:2 and 5:10

Step-by-step explanation:

3 0
3 years ago
The dimension of the rectangle prism show are given in centimeters 4 cm 3 cm 1.4 cm what is the volume of the rectangular prism
ira [324]

Answer:

<em>16.8 cubic centimeter</em>

Step-by-step explanation:

Dimensions of rectangular prism are:

4\ cm, 3\ cm , 1.4\ cm

To find:

The volume of rectangular prism in cubic cm ?

Solution:

The formula for volume of prism is given as:

V=l\times w\times h

Where l is the length of rectangular prism

w is the width of rectangular prism

h is the height of rectangular prism

Here we are given the three dimensions of prism as:

Length, l = 4 cm

Width, w = 3 cm

Height, h = 1.4 cm

Putting the values in formula for volume:

V=4\times 3\times 1.4\\\Rightarrow \bold{V =16.8\ cm^3}

So, volume is <em>16.8 cubic centimeter</em>.

6 0
4 years ago
There are 32 students in the class of the class 38 bring their own lunch how many students bring their own lunch
Zarrin [17]
12 student bring their own lunch.
Hope this will help you!
4 0
3 years ago
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