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uysha [10]
2 years ago
7

What is 2 more tens than 11?

Mathematics
2 answers:
svet-max [94.6K]2 years ago
8 0
The answer would be 31
adelina 88 [10]2 years ago
7 0
The answer should be 31
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Element X is a radioactive isotope such that its mass decreases by 59% every day. If an experiment starts out with 390 grams of
miss Akunina [59]

Answer:

The function that represents the mass of the sample after t days is A(t) = 390(0.41)^t.

The percentage rate of change per hour is of -2.46%.

Step-by-step explanation:

Exponential amount of decay:

The exponential amount of decay for an amount of a substance after t days is given by:

A(t) = A(0)(1-r)^t

In which A(0) is the initial amount, and r is the decay rate, as a decimal.

Element X is a radioactive isotope such that its mass decreases by 59% every day. The experiments starts out with 390 grams of Element X.

This means, respectively, that r = 0.59, A(0) = 390

So

A(t) = A(0)(1-r)^t

A(t) = 390(1-0.59)^t

A(t) = 390(0.41)^t

The function that represents the mass of the sample after t days is A(t) = 390(0.41)^t.

Hourly rate of change:

Decreases by 59% every day, which means that for 24 hours, the rate of change is of -59%. So

-59%/24 = -2.46%

The percentage rate of change per hour is of -2.46%.

5 0
3 years ago
Gerry wants to construct a triangle with segments that
alexira [117]

Answer:

See Explanation

Step-by-step explanation:

Sample Response: No, the triangle is not possible. The triangle inequality rule states the sum of any two sides must be greater than the third side. 6 + 4 is 10, which is less than 11.

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2 years ago
Three girls (Zeva, Abby and Jenny) went to a hair salon. Each girl had their hair styled (curly, straight, and wavy) and colored
lutik1710 [3]
That doesn’t make sense? Do u mean like guess on what their hair color and style could be
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3 years ago
Write the expression in complete factored form <br><br> 3p^2(q+3)-4(q+3)
Tresset [83]
If you factored this the outcome would be,

(q+3)(3p^2-4)
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3 years ago
Answer this question​
PolarNik [594]

Answer:

(0,8)

Step-by-step explanation:

5 0
3 years ago
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