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Gnoma [55]
3 years ago
14

Please help me i have only 2 min to solve this

Mathematics
1 answer:
Oduvanchick [21]3 years ago
6 0

Answer30,082:

Step-by-step explanation:

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The element silicon has a molar mass of 28.09 g/mol. Calculate the mass of 0.15 mol of Silicon.
Sav [38]

The answer is 28.09 g. I hope this helped.

3 0
2 years ago
Find the equation of a line perpendicular to −4x+4y=4 that contains the point (−4,5).
kati45 [8]

Answer:

y = - x + 1

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Rearrange - 4x + 4y = 4 into this form by adding 4x to both sides

4y = 4x + 4 ( divide all terms by 4 )

y = x + 1 ← in slope- intercept form

with slope m = 1

given a line with slope m then the slope of a line perpendicular to it is

m_{perpendicular} = - \frac{1}{m} = - \frac{1}{1} = - 1, thus

y = - x + c ← is the partial equation

To find c substitute (- 4, 5) into the partial equation

5 = 4 + c ⇒ c = 5 - 4 = 1

y = - x + 1 ← equation of perpendicular line

4 0
3 years ago
Read 2 more answers
Need help with this ​
photoshop1234 [79]

Answer:

9.6x10^3

Step-by-step explanation:

9,600

find the highest number

9,600

^

bring the decimal to that number

9.600

count how many spaces it took to get to that number

9.600

   ^ ^ ^

3

so its 10 to the third power

7 0
3 years ago
Factor the following<br> polynomial:<br> X^3 + 125
ra1l [238]
X^3 + 5^3
(x+5)x(x^2-X x 5+5^2)

(x+5)x(x^2 -5x+5^2)

(x+5)x(x^2 -5x+25)

(x+5) x (x^2 -5x+25)

6 0
3 years ago
Can someone please explain the area of a circle in the simplest way possible, no links
AlekseyPX

So, for the area of a circle, there should be a line in the middle. Correct?

Well, that line is the diameter. Then cut that in half, so if the diameter is 6, the radius is 3.

Then multiply the the radius by the radius, so 3x3 once you get that, multiply the answer by pi. Pi= 3.14, so if you do 3x3x3.14 you should get 28.26. Hope this helps.

3 0
3 years ago
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