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3 years ago

_____ scientists study the planets. ( science )

Mathematics

2 answers:

scoundrel [369]3 years ago

6 0

Answer: A

Step-by-step explanation:

allsm [11]3 years ago

5 0

Answer:

Step-by-step explanation:

Physical scientists are often known as astronomers. Which is the study of space including planets, moons, comets etc.

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Can someone help, i think its B but i dont think thats right.

suter [353]

It looks right to me

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2 years ago

There is a proportional relationship between your distance from a thunderstorm and the time from when you see the lightning and

eimsori [14]

Answer:

Yes.

Step-by-step explanation:

The relation would be 3 = k*9 as there is a direct proportional relationship.

So k = 3/9 = 1/3 and we can write the relation as d = 1/3 t where d=distance and t = time.

So if we double the time t we have:-

d = 1/3 * 18

= 6 kilometers.

So the distance is doubled.

3 0

3 years ago

Question 17, 19 and 21 ?

Vaselesa [24]

If this is Textbook work- use SLADER (the app or the website)

3 0

3 years ago

one days discharge at its mouth, 3 trillion gallons, could supply all of country A’s household for 5 months. how much water an a

serious [3.7K]

let's use engineering notation for the sake of brevity.

1 trillion is 1,000,000,000,000, or just 1E12, twelve zeros.

1 million is then 1E6, six zeros.

we know the discharge for one day is 3E12 gallons, and that'd do just fine for country A for 5 months. How many gallons in 1 month only?

$\bf \begin{array}{ccll} gallons&months\\ \cline{1-2} 3E12&5\\ x&1 \end{array}\implies \cfrac{3E12}{x}=\cfrac{5}{1}\implies 3E12=5x \\\\\\ \cfrac{3E12}{5}=x\implies 6E11=x\implies 600000000000=x$

if there are 200million inhabitants in A, namely 200E6 or 2E8 inhabitants, how many gallons per inhabitant from all those 6E11 gallons?

$\bf \begin{array}{ccll} gallons&households\\ \cline{1-2} 6E11&2E8\\ x&1 \end{array}\implies \cfrac{6E11}{x}=\cfrac{2E8}{1}\implies 6E11=2E8x \\\\\\ \cfrac{6E11}{2E8}=x\implies \cfrac{600000000000}{200000000}=x\implies 3000=x$

5 0

3 years ago

The coordinates of one endpoint of a line segment are (4, −12). The length of the segment is 5 units. Determine four coordinate

Nina [5.8K]

Answer:

Four coordinate pairs that could serve as the other endpoint of the given line segment are given by: (9,-12), (-1,-12), (4,-7), (4,-17).

Step-by-step explanation:

One endpoint of (4,-12), length of 5 units.

Four possible pairs:

Add 5 to x, keep y: (4+5,-12) = (9,-12).

Subtract 5 from x, keep y: (4-5,-12) = (-1,-12).

Keep x, add 5 to y: (4,-12+5) = (4,-7)

Keep x, subtract 5 from y: (4,-12-5) = (4,-17)

Four coordinate pairs that could serve as the other endpoint of the given line segment are given by: (9,-12), (-1,-12), (4,-7), (4,-17).

6 0

3 years ago