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avanturin [10]
2 years ago
12

HELP PLEASE ME I WILL GIVE BRAINLIEST

Mathematics
1 answer:
Oksana_A [137]2 years ago
8 0

Answer:

345678

Step-by-step explanation:

456789 my number

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2<br> 3<br> x +<br> 1<br> 2<br> y = 2<br> 3<br> 8<br> x +<br> 5<br> 6<br> y = −<br> 11<br> 2
Allushta [10]

Answer:

The answer is in the image below

3 0
3 years ago
According to astronomers, what is a "light year" answer key
liberstina [14]
A light-year is defined as the distance the light can cover in one year.

The light travels at speed of c=3 \cdot 10^8 m/s, and one year converted into seconds is
1 y = 365  \frac{d}{y} \cdot 24  \frac{h}{d} \cdot  60 \frac{m}{h} \cdot 60  \frac{s}{m}=3.15 \cdot 10^7 s

So the distance covered by the light in one year is
S=vt =(3 \cdot 10^8 m/s)(3.15 \cdot 10^7 s)=9.45 \cdot 10^{15} m
And this is the distance that corresponds to one light-year.
3 0
3 years ago
Enter an algebraic expression to model the given context. Give your answer in simplest form. The original price p of an item les
ra1l [238]

Answer:

Step-by-step explanation:

Let

Original price = p

Less Discount = 20%

Total discount paid for the item = 20% of p

= 20/100 * p

= 0.2 * p

= 0.2p

Actual price after discount = 100% - 20%

= 80%

Total price paid for the item = 80% of p

= 80/100 * p

= 0.8 * p

= 0.8p

6 0
3 years ago
the measure of one side of a square is (s + 3) inches long. which pair of expressions both represent the perimeter of this squar
Akimi4 [234]
An expression could be 4(s+3). Hope it helps! :)
4 0
2 years ago
Read 2 more answers
Find the standard form of the equation of the parabola with a focus at (-2, 0) and a directrix at x = 2.
Leokris [45]
Standard form is, hold a sec

x=2 is directix
that means it opens left or right
so we must use
(y-k)²=4p(x-h)
where vertex is (h,k) and p is distance from focus to vertex
also shortest distance from vertex to directix
the shortest distance from focus to directix is 2p
if p>0 then the parabola opens right
if p<0 then pareabola opens left

so
(-2,0) and x=2
the distance is 4
4/2=2
p=2
wait, positive or negative
focus is to the left of the directix so p is negative
p=-2

vertex is 2 to the right of the focus and 2 to the left of directix
vertex is (0,0)

so
(y-0)²=4(-2)(x-0) or
y²=-8x is da equation
not sure what form is standard tho
4 0
2 years ago
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