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2 years ago

Explain 5 different ways you use Math in your everyday life. This is a telpas thing btw

Mathematics

2 answers:

Maslowich2 years ago

8 0

Answer:

Time deltas

Step-by-step explanation:

Jobisdone [24]2 years ago

6 0

Answer:

School, Looking at what episode of anime I am on, Looking at the time, Looking at my calendar, and another is when I am doing brain teasers!

Step-by-step explanation:

Does this count?

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A bridge in the shape of an arch connects two cities separated by a river. The two ends of the bridge are located at (–7, –13) a

sdas [7]

Answer:

$y=-\dfrac{13}{49}x^2$

Step-by-step explanation:

The shape of an arch corresponds to a parabola.

the general equation for a parabola is:

$y=ax^2+bx+c$

we're given three coordinates: (-7,-13),(7,-13) and (0,0)

so we can plug these values in the general equation to make 3 separate equations:

(x,y) = (-7,-13)

$-13=a(-7)^2+b(-7)+c$

$49a-7b+c=-13$

(x,y) = (7,-13)

$-13=a(7)^2+b(7)+c$

$49a+7b+c=-13$

(x,y) = (0,0)

$0=a(0)^2+b(7)+c$

$c=0$

so we have three equations. and we can solve them simultaneously to find the values of a,b, and c.

we've already found c = 0, let's use substitute it to other equations.

$49a-7b+c=-13\quad\Rightarrow\quad49a-7b=-13$

$49a+7b+c=-13\quad\Rightarrow\quad49a+7b=-13$

we can solve these two equation using the elimination method, by simply adding the two equations

$\quad\quad49a-7b=-13\\+\quad49a+7b=-13$

------------------------------

$\quad\quad 98a=-26$

$\quad\quad a=-\dfrac{13}{49}$

Now we can plug this value of a in any of the two equations.

$49a-7b=-13$

$49\left(-\dfrac{13}{49}\right)-7b=-13$

$-13-7b=-13$

$-7b=0$

$b=0$

We have the values of a,b, and c. We can plug them in the general equation to find the equation of the arch.

$y=\left(-\dfrac{13}{49}\right)x^2+0x+0$

$y=-\dfrac{13}{49}x^2$

$49y=-13x^2$

This our equation of the arch!

5 0

2 years ago

HELP ASAP WILL MARK BRAINLIEST!<br><br> What is the length of TW?

love history [14]

Answer:

Step-by-step explanation:

You are given the hypotenuse and one leg of a right triangle, and are being asked to find the other leg. The Pythagorean theorem applies.

TW² + TY² = WY²

TW² = 17² - 15² = 64

TW = √64

TW = 8

3 0

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the park family is staying at a hotel for 3 nights the hotel cost $129 per night how much will their 3 night stay in the hotel c

gladu [14]

It will cost 387 for 3 nights

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The sum of one and the product of four and a number x

frez [133]

1+(4x) ??????????? I think so

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How to round $45.71 to the nearest dollar

fgiga [73]

Since .7 is above 5.

$45.71 would turn to $46.00.

You would round 45... the 5 to 6...

To be $46

7 0

2 years ago

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