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nadya68 [22]
3 years ago
10

Anyone know the answer?

Mathematics
1 answer:
Alborosie3 years ago
7 0

Step-by-step explanation:

{9}^{ \frac{ - 1}{2} }  \\  {3}^{2 \times  -  \frac{1}{2} }  \\  {3}^{ - 1}  \\  \frac{1}{3}

Now for another

{27}^{ \frac{ - 2}{3} }  \\  {3}^{3 \times  \frac{ - 2}{3} }  \\  {3}^{ - 2} \\   \frac{1}{9}

Hope it will help :)❤

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After the 4th half life how much of the sample is left if the mass is 100g.
vazorg [7]

Answer:

\huge\boxed{\sf 6.25 \ g}

Step-by-step explanation:

After every Half life , Half of the mass is left.

After 1st Half life = 100 g / 2 = 50 g

After 2nd Half life = 50 / 2 = 25 g

After 3rd Half life = 25 / 2 = 12.5 g

After 4th Half life = 12.5 / 2 = 6.25 g

\rule[225]{225}{2}

Hope this helped!

<h3>~AH1807</h3>
6 0
2 years ago
Please help 20 POINTS
Elenna [48]

Answer:

5 4/5

Step-by-step explanation:

First of all subtract the whole number, 2, from 8 1/5

You would get 6 1/5

Now subtract 2/5 from that, or set up an equation like:

6 + 1/5 - 2/5

you would get 6 - 1/5 or 5 4/5

-Chetan K

6 0
2 years ago
Read 2 more answers
The degree of 4 – x2
Elina [12.6K]

Answer:

Step-by-step explanation:

If the given is x^2 then the degree is 2.

Degree: 4 - x^2 = 2.

It is what is on the x to the highest power. If the question was

x^3 - 3x^2 + 2x + 4

The the degree would be 3

6 0
3 years ago
Please help me on this !!!! tysm
ss7ja [257]

Answer:

21.5?

the more i think the more i believe it

5 0
3 years ago
A line with slope of -1/10 passes thorugh the point (1,8). What is its equation in point slope form?
Alisiya [41]

ABOUT POINT SLOPE FORM:

  • y - Y1 = m(x - X1)
  • m represents the slope
  • Y1 & X1 is a point
  • The form allows you to identify the slope & the point on the line

y - Y1 = m(x - X1)

y - 8 = -1/10(x - 1) -- IN POINT SLOPE FORM


Hope this helps you!!! :)

5 0
3 years ago
Read 2 more answers
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