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svetoff [14.1K]
2 years ago
10

I gotta answer this but I don’t want to be wrong

Mathematics
2 answers:
hjlf2 years ago
8 0

Answer:

A does not belong, i´m pretty sure.

Step-by-step explanation:

viktelen [127]2 years ago
7 0
I am almost 100% sure that it’s A
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If y=7 when x=64 what is x when y=8
kirill [66]

Answer:

when y=8 x= 73 ❤️❤️❤️❤️❤️

3 0
3 years ago
Read 2 more answers
Please help! The expressions 3x - 9 and 23 - 5x represent the lengths (in feet) of two sides of an equilateral triangle. Find th
valentina_108 [34]
An equilateral triangle has 3 congruent sides so the 2 expressions above are equal
3x - 9= 23 - 5x
And then you solve for x
-22=-2x
X=11
5 0
3 years ago
Answer ASAP. Please give correct answer. (Involves a bunch of circles and trig identities)
iren [92.7K]

Answer:

45.40

Step-by-step explanation:

First of all, the shape of rope is not a parabola but a catenary, and all catenaries are similar, defined by:

y=acoshxa

You just have to figure out where the origin is (see picture). The hight of the lowest point on the rope is 20 and the pole is 50 meters high. So the end point must be a+(50−20) above the x-axis. In other words (d/2,a+30) must be a point on the catenary:

a+30=acoshd2a(1)

The lenght of the catenary is given by the following formula (which can be proved easily):

s=asinhx2a−asinhx1a

where x1,x2 are x-cooridanates of ending points. In our case:

80=2asinhd2a

40=asinhd2a(2)

You have to solve the system of two equations, (1) and (2), with two unknowns (a,d). It's fairly straightforward.

Square (1) and (2) and subtract. You will get:

(a+30)2−402=a2

Calculate a from this equation, replace that value into (1) or (2) to evaluate d.

My calculation:

a=353≈11.67

d=703arccosh257≈45.40

7 0
3 years ago
the difference between two number is 642 . when the greater is divided by smaller the quotient is 8 and the remainder is 19,then
pentagon [3]

Answer:

Step-by-step explanation:

GIven that , 

Dividend is greater than Divisor by 642.

Therfore , let,

                    

                    Dividend = x + 642.

                    Divisor = x

                    Quotient = 8

                    Remainder = 19.

We know that, Dividend = Divisor × Quotient + Remainder.

Therefore, x+642 + X.8 + 19.

X + 642 = 8X + 19.

642 - 19 = 8X - X

7X = 623

X = 623/7

X = 89.

Therefore, Divisor = 89

                Dividend = X+642=731.

6 0
3 years ago
Which situation is modeled by the graph? the height of a jump rope being used over time the height of an elevator over time the
Sonbull [250]

A.) the height of a jump rope being used over time

8 0
3 years ago
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