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Ronch [10]
3 years ago
11

Which of these represents 1° of arc on the earth’s equator, if the equatorial radius of the earth is 3963 miles?

Mathematics
2 answers:
NeX [460]3 years ago
4 0
What are the choices ? ? It's about 69 miles or 111 km.
sertanlavr [38]3 years ago
3 0
You said which of these represents, that means there should be options. Where are the options? Please provide and I will answer. :)
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A boat has two sails in the shape of right triangles, labeled A and B in the figure below.
Maru [420]

Answer:

The area of sail A is One-fourth the area of sail B.

Step-by-step explanation:

5 0
3 years ago
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Answer this please thanks
densk [106]

Answer:

z=5, m<b=66 degrees

Step-by-step explanation:

8z+74+2z+56=180

10z+130=180

10z=50

z=5

3 0
3 years ago
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Points!!!
sattari [20]
(1/40) - (1/x) = (1/60) 
x = 1/(1/40) - (1/60)) =
<span>A.) 120</span> minutes 
Its similar to the other question.
7 0
2 years ago
An arch is in the shape of a parabola. It has a span of 100 feet and a maximum height of 25 ft.
faltersainse [42]

Answer:

y=-\frac{1}{100}(x-50)^2+25

the height of the arch 10 feet from the center is 24 feet

Step-by-step explanation:

An arch is in the shape of a parabola. It has a span of 100 feet, the vertex lies at the center 50 and the maximum height of 25 ft.

Vertex at (50,25)

vertex form of the equation is

y=a(x-h)^2+k, (h,k) is the center

y=a(x-50)^2+25

the parabola starts at (0,0) that is (x,y)

0=a(0-50)^2+25

subtract 25 from both sides

-25=a(-50)^2

-25=a(2500)

divide both sides by 2500

a=-\frac{1}{100}

y=-\frac{1}{100}(x-50)^2+25

the height of the arch 10 feet from the center.

center is at 50, 10 feet from the center so x=40 and x=60

y=-\frac{1}{100}(40-50)^2+25

y=24

the height of the arch 10 feet from the center is 24 feet

4 0
3 years ago
HELP NOW II WILL GIVE YOU 30 POINTS
Alex

Answer:

1; -11+ 26 =15

2: 2- (-3) =5

3: 10+ (-4) = 7

4: 11 + -8 =3

5: -2 + 3 =1

6:  8 - 12 = -4

Step-by-step explanation:

!

5 0
2 years ago
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