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Deffense [45]
3 years ago
8

One grain of this sand approximately weighs 6 x 10^-6g.

Mathematics
1 answer:
emmasim [6.3K]3 years ago
4 0

Answer:

  • 1.2×10¹² grains

Step-by-step explanation:

1 grain = 6×10⁻⁶ g

  • 7200 kg =
  • 7200000 g =
  • 7.2×10⁶ g =
  • 7.2×10⁶ ÷ 6×10⁻⁶ =
  • (7.2÷6)×10⁶⁻ ⁽⁻⁶⁾ =
  • 1.2×10¹² grains
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30 points!!!
AysviL [449]
<h3>Answer: The graph is shown in the attached image below</h3>

-2x means -2*x or "-2 times x" where x is a placeholder for any number you want.

To graph y = -2x, you just need two points. Each point is of the form (x,y)

Let's plug in zero as it is often the easiest to work with.

If x = 0, then -2*x = -2*0 = 0. Notice how I replaced x with 0 and simplified.

Therefore, if x = 0, then y = 0. We have (x,y) = (0,0) as one point on this line. I have marked it as point A in the graph.

Point B is (1, -2) and it is found by plugging x = 1 into the equation to get...

y = -2x

y = -2*1

y = -2

You could find other points, but two points is enough to draw a straight line through them. The slope of this line is -2 = -2/1. The y intercept is 0.

6 0
4 years ago
Megan is checking her tax bill for the last year.
Murljashka [212]

Answer:

That's too long

Step-by-step explanation:

You need to up the points because this is too long

8 0
4 years ago
Which equation matches the graph shown?
pogonyaev

Answer:

  • C. y = 4x - 3

Step-by-step explanation:

<u>The line has a positive slope and negative y-intercept.</u>

  • m = 4, b = - 3

This is only matched by a choice C

4 0
3 years ago
Read 2 more answers
Find the measure of angle A
Salsk061 [2.6K]

the angle c is 90°, it is a right triangle. (you see from the picture).

the sum of the interior angles are 180° (in all triangles)

so

180 - 90 - 29 =

61° (angle A)

----------------------

90 + 61 + 29 = 180°


4 0
3 years ago
Read 2 more answers
How many terms are in this expression? 5x y - 3x - 8 2
FromTheMoon [43]

The number terms in the given expression is 3, they are 5xy, -3x and -82.

The given expression is 5xy-3x-82.

<h3>What is an expression?</h3>

An expression is a combination of terms that are combined by using mathematical operations such as subtraction, addition, multiplication, and division.

The terms involved in an expression in math are:

Constant: A constant is a fixed numerical value.

Variable: A variable is a symbol that doesn't have a fixed value.

In the given expression 5xy-3x-82, there are three terms, which are 5xy, -3x and -82.

Therefore, the number terms in the given expression is 3, they are 5xy, -3x and -82.

To learn more about an expression visit;

brainly.com/question/28170201.

#SPJ1

7 0
2 years ago
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