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3 years ago

Whats the vertex of the graph y=-x^2

1 answer:

6 0

(0,0) you could use x=-b/2a but since your b term is nonexistant the whole term goes to 0 for the x value. Plug x=0 into the original equation which gives you another 0. ezpz

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Earth revolves around the Sun in 365 days, but the planet Mercury does so in only 88 days. Compared to Earth, how many more comp

Elena L [17]

Answer:

In a 1000 days Mercury will make 8.624 more revolutions than Earth!

Step-by-step explanation:

Earth takes 365 days to make a complete revolution.

we can say that the rotational speed of Earth is $\dfrac{1}{365}\frac{\text{rev}}{\text{day}}$

so, in a 1000 days how many revolutions will Earth have made?

$\dfrac{1}{365}\frac{\text{rev}}{\text{day}}\times(1000\,\text{day})$

see that the 'day's cancel out. Simply multiply the two numbers!

$2.739\text{rev}$

Next, do the same for Mercury

we can say that the rotational speed of Mercury is $\dfrac{1}{88}\frac{\text{rev}}{\text{day}}$

as it completes 1 revolution in 88 days.

so, in a 1000 days how many revolutions will Mercury have made?

$\dfrac{1}{88}\frac{\text{rev}}{\text{day}}\times(1000\,\text{day})$

multiplying by 1/88 by 1000 yields:

$11.363\text{rev}$

The Question is how many MORE complete revolutions will Mercury make in 1000 days?

We need to subtract the revolutions of Mercury with Earth to find how far ahead is Mercury from Earth

$11.363\text{rev} - 2.739\text{rev}$

$8.624\text{rev}$

In a 1000 days Mercury will make 8.624 more revolutions than Earth!

5 0

3 years ago

What is 3 and 1/3 multiplied by 2 3/5

Setler79 [48]

The answer to the problem is 8 2/3.

Hope This Helps

7 0

4 years ago

Read 2 more answers

50 points!!! Find the 4 arithmetic means between -3.2 and 5.8. List answer with all numbers, state the common difference, and sh

emmainna [20.7K]

Answer:

{-3.2, -1.4, 0.4 2.2, 4.0, 5.8}
common difference: 1.8

Step-by-step explanation:

The difference between the two numbers is ...

5.8 -(-3.2) = 9

The four "means" divide this interval into 5 parts, so each part has a length of ...

9/5 = 1.8 . . . . the common difference

The values of the "means" can be found by adding 1.8 successively:

-3.2 +1.8 = -1.4

-1.4 +1.8 = 0.4

0.4 +1.8 = 2.2

2.2 +1.8 = 4.0

Including the given numbers, the arithmetic sequence is ...

-3.2, -1.4, 0.4, 2.2, 4.0, 5.8 . . . . . common difference of 1.8

5 0

3 years ago

This is geometry. If possible please explain steps while solving.

White raven [17]

Don’t click the link. -

3 0

3 years ago

The formula for the circumference of a circle is C=2(pie)(r) Determine the circumference when the radius r is 10 cm.

QveST [7]

the formula for the circumference of a circle is

C = 2 × π × r or C = π × D 

If either r or D is known, you can calculate the circumference by simply substituting the known value for r or D in the formula. Use 3.14 for π.
RADIUS = 10DIAMETER = 20
C IS THE ANSWER

4 0

3 years ago