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NikAS [45]
3 years ago
14

4) A radioactive isotope has a half-life of 10 days. Malik starts with 100 grams of this isotope . After 50 days, how many grams

of the isotope will remain? Round your answer to the nearest gram.
Mathematics
1 answer:
salantis [7]3 years ago
5 0

Answer:

4g

Step-by-step explanation:

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Mr. Richard owns an orchard that has a rectagular fence . The orchard is 36 yards long and 18 yards wide . if he walks across th
Sergio [31]

Answer:

40.2 Yards

Step-by-step explanation:

To find the diagonal length of the orchard, we need to use the Pythagorean Theorem. The formula of the Pythagorean Theorem is:

c²= a² + b²

a = 36 Yards

b = 18 Yards

Now let's plug in our values to the formula.

c² = a² + b²

c² = 36² + 18²

c² = 1296 + 324

c² = 1620

Now to find the value of c we need to get the square root of both sides.

\sqrt{c^{2}}=\sqrt{1620}

c = 40.2

So the diagonal length of Mr. Richard's orchard is 40.2 Yards.

7 0
4 years ago
5xy —9cs (-)-3xy + cs simplify
aalyn [17]

Answer:

Step-by-step explanation:

2 • (xy - 4cs)

7 0
4 years ago
20% of 150 is what number?
Tatiana [17]
The answer is 30 yahhhhhhhhhhh
6 0
3 years ago
Another friend, with a mass of 75 kg, wants a push on the swing. How much force will
NeX [460]

Answer:

735N

Step-by-step explanation:

According to Newton's second law;

Force = mass * acceleration due to gravity

'

Given

Mass = 75kg

Acceleration = 9.8m/s^2

Substitute into the formula;

F = 75 * 9.8

F = 735N

Hence the force required is 735N

6 0
3 years ago
A service station will be built on the highway, and a road will connect it with cray. How long will the new road be?
zysi [14]

Answer: 4.6 mi

Step-by-step explanation:

Suppose the points A, B, C and S shows Alba, Blare, Cray and Service station respectively,

Then, We have to find out the line segment CS = x = ?

Now, In the triangles ACB and CSB,

\angle ACB\cong \angle CSB     ( Right angles )

\angle ABC\cong \angle CBS      ( Reflexive angles )

Thus, by AA similarity postulate,

\triangle ACB\sim\triangle CSB

By the property of similar triangles,

\frac{AB}{CB}=\frac{AC}{CS}

\implies \frac{13}{5}=\frac{12}{x}

\implies 13x=5\times 12

\implies 13x = 60

\implies x =\frac{60}{13}=4.61539\approx 4.6

Hence, the approximate length of the new road = 4.6 miles


3 0
3 years ago
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