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3 years ago

What are the zeros of the polynomial function y=(x-7)(x-5)(x-3)

Mathematics

1 answer:

bogdanovich [222]3 years ago

5 0

Answer:

x=7 x=5 x=3

Step-by-step explanation:

First set the equations equal to zero

x-7 = 0

then add the 7 to both sides

and do this for all three

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C С 154 -Y Х 2 3 5 w 4 6 7 Z D

Sergio [31]

Answer:

m<1 = 26°

m<2 = 154°

m<3 = 26°

m<4 = 26°

m<5 = 154°

m<6 = 154°

m<7 = 26°

Step-by-step explanation:

What is required was not stated, however, let's find the value of every angle labelled in this diagram.

✔️m<1 = 180° - 154° (linear pair theorem)

m<1 = 26°

✔️m<2 = 154° (vertical angles theorem)

m<2 = 154°

✔️m<3 = m<1 (vertical angles theorem)

m<3 = 26° (substitution)

✔️m<4 = m<3 (alternate interior angles theorem)

m<4 = 26° (substitution)

✔️m<5 = m<2 (alternate interior angles theorem)

m<5 = 154° (substitution)

✔️m<6 = m<5 (vertical angles theorem)

m<6 = 154° (substitution)

✔️m<7 = m<4 (vertical angles theorem)

m<7 = 26° (substitution)

5 0

3 years ago

Two lines, A and B, are represented by the following equations:

borishaifa [10]

Answer:

The answer is B! if you want to do more of these problems may I recommend using Desmos?

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3 years ago

Read 2 more answers

How can properties help me divide?

mariarad [96]

Properties can help you divide because if you didn't follow them we would have incorrect answers and would be very held back in science and mathematics

8 0

3 years ago

I need to find the angle of a sector of a circle when the arc length is 9pi/8 and the radius is 4.5, please help me!!

Sloan [31]

Answer:

Step-by-step explanation:

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3 years ago

In an effort to determine whether any correlation exists between the price of stocks of airlines, an analyst sampled six days of

vovikov84 [41]

Answer:

Check the explanation

Step-by-step explanation:

Following table shows the calculations:

Delta, X Southwest , Y X^2 Y^2 XY

45.96 38.76 2112.3216 1502.3376 1781.4096

46.8 45.41 2190.24 2062.0681 2125.188

47.93 15.7 2297.2849 246.49 752.501

51.78 49.58 2681.1684 2458.1764 2567.2524

52.17 44.34 2721.7089 1966.0356 2313.2178

47.36 18 2242.9696 324 852.48

Total 292 211.79 14245.6934 8559.1077 10392.0488

Sample size: n =6

Now

$S_{yy}=\sum y^{2}-\frac{\left (\sum y \right )^{2}}{n}=1083.27$

$S_{xx}=\sum x^{2}-\frac{\left (\sum x \right )^{2}}{n}=35.03$

$S_{xy}=\sum xy-\frac{\left (\sum x \right )\left (\sum y \right )}{n}=84.94$

The coefficient of correlation is :

$r=\frac{S_{xy}}{\sqrt{S_{xx}S_{yy}}}=0.436$

7 0

3 years ago