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3 years ago

Two

Mathematics

2 answers:

lukranit [14]3 years ago

5 0

Answer:

171

Step-by-step explanation:

USING GOOGLE, THE POSSIBLE NUMBERS THAT ADD UP TO 343 ARE...

1 + 342 = 343

2 + 341 = 343

3 + 340 = 343

...

169 + 174 = 343

170 + 173 = 343

171 + 172 = 343

THERE ARE MORE NUMBERS BUT THE QUESTION STATES THAT THE TWO PAGES FACE EACH OTHER IN THE BOOK SO, WE ARE LOOKING FOR NUMBERS THAT A NEXT TO EACH OTHER.

USING OF THE NUMBERS LISTED ABOVE, WE ARE ABLE TO DEDUCE THAT 171 AND 172 ARE THE TWO THAT ADD UP 343, SINCE WE ARE LOOKING FOR NUMBERS THAT ARE BESIDE EACH OTHER.

NOW THINKING OF A BOOK, WHEN PAGES ARE NUMBERED THE SMALLER NUMBERED PAGE COME FIRST.

THEREFORE, THE NUMBER OF THE PAGE THAT COMES FIRST IS 171.

PLEASE, THANK, RATE 5 STARS, AND GIVE BRAINLIEST. THANK YOU.

PIT_PIT [208]3 years ago

3 0

Answer:

171

Step-by-step explanation:

I divided 340 first and got 170 for each page number then I had 3 left over.

I added 1 to 170 and got 171 the I added the left over 2 to the other 170 and got 172.

So the first page number should be 171 :)

I hope this helped you understand :)

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X=|y| what is the domain and range ?

cricket20 [7]

Answer:

Domain: x ≥ 0

Range: All real numbers

Step-by-step explanation:

This is an absolute value function which creates a V for its graph. Since the absolute value is on y, the function is rotated to the right or sideways.

This means only the x values of 0 and greater are used in the function. Since the domain is the set of all x values then it is x≥0.

This also means that all y values are used on the y-axis. There is no restriction on the y values. Since the range is the set of all y values then it is all real numbers.

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3 years ago

A sign company charges $28 per yard for each custom made banner. Ms. Gill orders two banners that are each 1 7/8 yards yards lon

Svetlanka [38]

Answer:

$896

Step-by-step explanation:

We are given that

Charge of 1 yard for each custom-made banner=$28

Length of 1 piece=15 yards

Length of another piece=2 yards

We have to find that how much money payed by Ms.Gill for all three banners.

According to question

Cost of 15 yards long banner=$420

Cost of 2 piece of 15 yards long banner==$840

Cost of 2 yards long banner==$56

Total cost of 3 piece of banners=840+56=$896

Hence, Ms gill pay for all three banners=$896

Your Welcome;)

8 0

3 years ago

How do you know if the question is asking for you to do Pythagoras or Trigonometry? Like in basic terms, what’s the difference??

mrs_skeptik [129]

Pythagoras theorem only works for right triangle (90 degree)

Trigonometry (sin, cos, tan) works everywhere!

Hopefully I answered your question!

If you want to learn more about Trigonometry or Pythagoras theorem, send me a message and add me as friend on Brainly. I'm a mathematician and an astrophysicist

:) have a great day!

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3 years ago

Solve the equation by graphing. If exact roots cannot be found, state the consecutive integers between which the roots are locat

zavuch27 [327]

Answer:

The equation contains exact roots at x = -4 and x = -1.

See attached image for the graph.

Step-by-step explanation:

We start by noticing that the expression on the left of the equal sign is a quadratic with leading term $x^2$ , which means that its graph shows branches going up. Therefore:

1) if its vertex is ON the x axis, there would be one solution (root) to the equation.

2) if its vertex is below the x-axis, it is forced to cross it at two locations, giving then two real solutions (roots) to the equation.

3) if its vertex is above the x-axis, it will not have real solutions (roots) but only non-real ones.

So we proceed to examine the vertex's location, which is also a great way to decide on which set of points to use in order to plot its graph efficiently:

We recall that the x-position of the vertex for a quadratic function of the form $f(x)=ax^2+bx+c$ is given by the expression: $x_v=\frac{-b}{2a}$

Since in our case $a=1$ and $b=5$ , we get that the x-position of the vertex is: $x_v=\frac{-b}{2a} \\x_v=\frac{-5}{2(1)}\\x_v=-\frac{5}{2}$

Now we can find the y-value of the vertex by evaluating this quadratic expression for x = -5/2:

$y_v=f(-\frac{5}{2})\\y_v=(-\frac{5}{2} )^2+5(-\frac{5}{2} )+4\\y_v=\frac{25}{4} -\frac{25}{2} +4\\\\y_v=\frac{25}{4} -\frac{50}{4}+\frac{16}{4} \\y_v=-\frac{9}{4}$

This is a negative value, which points us to the case in which there must be two real solutions to the equation (two x-axis crossings of the parabola's branches).

We can now continue plotting different parabola's points, by selecting x-values to the right and to the left of the $x_v=-\frac{5}{2}$ . Like for example x = -2 and x = -1 (moving towards the right) , and x = -3 and x = -4 (moving towards the left.