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garri49 [273]
3 years ago
7

Thirty percent of a radioactive substance decays in four years.

Mathematics
1 answer:
wel3 years ago
8 0

Answer:

The substance decays by 7.5% every year

Step-by-step explanation:

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What does this equal y >4x - 5
Tresset [83]

Answer:

This represents the graph area above the line y = 4x - 5 shaded.

Step-by-step explanation:

y > 4x - 5 is an inequality.  First we graph y = 4x - 5, which has y-intercept (0, -5) and slope 4.  Next, we shade all of the area above this line (because the inequality y > 4x - 5 says that all y values are above 4x - 5).

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Which ordered pairs are in the solution set of the system of linear inequalities? y > Negative one-thirdx + 2 y < 2x + 3
Natasha2012 [34]

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Option ( A ) is the answer at (2, 2), (3, 1), (4, 2)

Step-by-step explanation:

3 0
3 years ago
Say wut in 30 secs and you will get 5o points and brain crown
cluponka [151]

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wut

Step-by-step explanation:

6 0
2 years ago
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What does h equal in the equation S=2πr2+2πrh?
Troyanec [42]

A

Step-by-step explanation:First, subtract

2

π

r

2

from each side of the equation to isolate the

h

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S

−

2

π

r

2

=

2

π

r

h

+

2

π

r

2

−

2

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2

S

−

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=

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π

r

h

+

0

S

−

2

π

r

2

=

2

π

r

h

Now, divide each side of the equation by

2

π

r

to solve for

h

:

S

−

2

π

r

2

2

π

r

=

2

π

r

h

2

π

r

S

−

2

π

r

2

2

π

r

=

2

π

r

h

2

π

r

S

−

2

π

r

2

2

π

r

=

h

h

=

S

−

2

π

r

2

2

π

r

Or

h

=

S

2

π

r

−

2

π

r

2

2

π

r

h

=

S

2

π

r

−

2

π

r

2

2

π

r

h

=

S

2

π

r

−

r

2

r

h

=

S

2

π

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−

r

4 0
3 years ago
Michael opens a bag of Skittles and organizes them by color. He has 5 yellow, 6 green, 8
ELEN [110]

Answer:

I think 8:32 because there are 8 oranges and 32 in total

5 0
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