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Yanka [14]
2 years ago
13

Question 14 of 14

Mathematics
1 answer:
dimulka [17.4K]2 years ago
6 0
ANSWER: A

I THINK IF U GOT IT WRONG IM SO SORRY IT WOULD BE MY FAULT HAVE A GOOD DAY! EAT AND DRINK WATER
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What is 4y when x -3
lord [1]

Answer:

4y-x-3  = 0

Step-by-step explanation:

 Slope = 0.500/2.000 = 0.250

 x-intercept = 3/-1 = -3.00000

 y-intercept = 3/4 = 0.75000

4 0
2 years ago
The main cable of a suspension bridge forms a parabola, described by the equation y = a(x - h)2 + k, where y is the height in fe
nirvana33 [79]
Refer to the diagram shown below.

When x = 30 ft, the cable is at 15 ft, therefore y(30) = 15.
That is,
a(30 - h)² + k = 15            (1)

Also, because the distance between the supports is 90 ft, therefore
y(0) = 6 ft, and y(90) = 6 ft
That is,
a(-h)² + k = 6                 (2)
a(90 - h)² + k = 6          (3)

From (2) and (3), obtain
a(90 - h)² = ah²
90² - 180h + h² = h²
180h = 90²
h = 45 ft.

From (1) and (2), obtain
225a + k = 15
2025a + k = 6

Therefore
1800a = -9
a = - 0.005
k = 15 - 225(-0.005) = 16.125 ft

Answer:
The equation for the cable is
y = - 0.005(x - 45)² + 16.125 

A graph of the solution verifies that the solution is correct.

6 0
3 years ago
Read 2 more answers
i thought of a number, increased it by nine, and then multiplied by 6. the resulting number was 282. what was my number
Dovator [93]

Answer:

n+9)6=282

n+9=47

n=38

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
What is 2 less than five times a number
miv72 [106K]

Answer:

2<5*X

Step-by-step explanation:

Hope this helped, Have a Wonderful Day!!

8 0
2 years ago
Read 2 more answers
Simplify the difference. (–7x – 5x^4 + 5) – (–7x^4 – 5 – 9x)
sineoko [7]

Answer: 2x^4+2x+10

Step-by-step explanation:

You need to remember the mulplication of signs:

(+)(+)=+\\(-)(-)=+\\(-)(+)=-

Knowing this, you can distributive the negative sign. Then you get:

(-7x- 5x^4 + 5) - (-7x^4 - 5 - 9x)=-7x- 5x^4 + 5 +7x^4 + 5 + 9x

Now you need to add the like terms. Then:

=2x+2x^4+10

Finally, you can order the polynomial obtained in descending order. Therefore, the answer is:

=2x^4+2x+10

4 0
2 years ago
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