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3 years ago

I need help in algebra

Mathematics

1 answer:

Fudgin [204]3 years ago

5 0

Answer:

Step-by-step explanation:

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Find the equation of the line. hurryyyyyy

Natalija [7]

Answer:

y=-2x+1

Step-by-step explanation:

3 0

3 years ago

A football field is 53 1/3 yards wide how many feet wide is a football field

Olin [163]

Just look up 53 1/3 yards in feet. This would mean that the football field is 160 feet.

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3 years ago

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

This is a picture of a cube and the net for the cube.

morpeh [17]

Answer:

150cm2

Step-by-step explanation:

A=6a2, where a is the side of one face of the cube. Given a=5cm

A=6(5cm)^2

=6×25cm^2

=150cm^2 or 150cm2

3 0

3 years ago

Read 2 more answers

Find the equation of the parabola whose vertex is the origin and whose directrix is x = -4

lapo4ka [179]

Try this option:

1) if V(0;0) and x= -4, then common view of the required equiation is:

(y-k)²=4p(x-h), where focus is in (h-p;k), the vertex is in (h;k), the directrix is x=h+p, p<0 and y=k is simmetry axis;

2) if the V(0;0), then h=k=0 and the required equiation is:

y²=4px;

3) if the directrix equation is x=h+p, where h=0, then p= -4 (according to the condition the directrix equation is x= -4), then the required equation is:

y²= -16x

answer: y²= -16x

6 0

3 years ago