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Stolb23 [73]
3 years ago
5

Please help, this is math.

Mathematics
2 answers:
damaskus [11]3 years ago
6 0

A number with a negative exponent means you go down. For ^-2, move the decimal to places to the left. So your answer should be 0.0389

musickatia [10]3 years ago
4 0

Its the second one :)

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The moon is a sphere with radius of 959 km. Determine an equation for the ellipse if the distance of the satellite from the surf
Sergeeva-Olga [200]

Answer:

\frac{x^2}{1316^2}+\frac{y^2}{1669^2}=1

Step-by-step explanation:

An ellipse is the locus of a point such that its distances from two fixed points, called foci, have a sum that is equal to a positive constant.

The equation of an ellipse with a center at the origin and the x axis as the minor axis is given by:

\frac{x^2}{b^2}+\frac{y^2}{a^2} =1 \\\\where\ a>b

Since the distance of the satellite from the surface of the moon varies from 357 km to 710 km, hence:

b = 357 km + 959 km = 1316 km

a = 710 km + 959 km = 1669 km

Therefore the equation of the ellipse is:

\frac{x^2}{1316^2}+\frac{y^2}{1669^2}=1

5 0
3 years ago
AB and CD are straight line segments.
frutty [35]

Answer:

<h2>i) Angle AOC is 95° </h2>

Reason:- Angle AOC is equal to Angle DOB since they are Vertically Opposite Angles.

<h2>ii) Angle BOC is 85°</h2>

Reason:- Angle AOC + Angle BOC - 180° (they lie in a straight line so they are a linear pair. Sum of the angles will be 180°)

Angle AOC is 95°, So:-

95° + Angle BOC = 180°

Angle BOC= 180° - 95°

<h3><u>Angle BOC = 85°</u></h3>

<u></u>

<h2>iii) Angle DOE is 17°</h2>

Reason:- Angle AOE+ Angle DOE+ Angle DOB = 180° (they lie in a straight line so they're a linear pair. Sum of the angles will be 180°)

So,

68° + Angle DOE+ 95° = 180°

163° + Angle DOE = 180°

Angle DOE= 180° - 163°

<h3><u>Angle DOE is 17°</u></h3>
5 0
3 years ago
Rashida owns a bike rental company.
BartSMP [9]
So, our starting point, at zero hours, you already owe ten dollars. 
So far you know it is +10. 
Now, you multiply for by however many hours you have rented the bike for.
So the equation is:
4x+10.
x= # of hours bike is rented for.
Hope this helps! Have a happy holiday!
7 0
3 years ago
Read 2 more answers
If f(x) = k(x - 2)4, where k is positive, what is the effect on
Reika [66]

Answer:

The graph of f(x) is stretched vertically.

Step-by-step explanation:

k is a stretch factor, which multiplies the primitive function g (x) = (x-2)^{4} and f(x) is stretched vertically.

4 0
3 years ago
How do I make 7 x 2 + 5 =x a 2 step equation
Alex17521 [72]

Answer:

7x2=

14+5=

x a

Step-by-step explanation:

You usually don't write the answer after the equal symbol. You could, or can, write the answer after the equal symbol to make it into a 2 step equation.

7x2= 14

14+5= x a

4 0
3 years ago
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