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Serga [27]
3 years ago
7

A chemist calculated that the amount of baking soda required for an experiment is between

Mathematics
1 answer:
Luda [366]3 years ago
4 0

Answer:

4.5g

Step-by-step explanation:

it's easy

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Answer:B

Step-by-step explanation:

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Of the volunteers donating blood in a clinic, 30% have the Rhesus (Rh) factor present in their blood. (a) If five volunteers are
maksim [4K]

Answer:

0.83193

Step-by-step explanation:

Probability of having the Rhesus (Rh) factor present in their blood; p = 0.3

Sample size; n = 5

We want to find the probability the probability that at least one does not have the Rh factor.

This will be;1 - P(X < 1)

This is a binomial probability distribution. Thus;

P(X = k) = C(n, k) × p^(k) × (1 - p)^(n - k)

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Thus;

P(X = 0) = C(5, 0) × 0.3^(0) × (1 - 0.3)^(5 - 0)

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P(X = 0) = 0.16807

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1 - P(X < 1) = 1 - 0.16807 = 0.83193

4 0
3 years ago
-8y^10 / 2y^5<br> write using positive exponents
Rashid [163]

Answer:

Step-by-step explanation:

\dfrac{a^{m}}{a^{n}}=a^{m-n}\\\\\dfrac{-8y^{10}}{2y^{5}}=\dfrac{-4y^{10}}{y^{5}}=-4*y^{10-5}= -4y^{5}

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Please help me with this question I am really confused
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Step-by-step explanation:

The answer is consistent

5 0
3 years ago
To find the coordinates of point L, the midpoint of JK, the equation M = can be used. What are the coordinates of point L? L(1,
anygoal [31]
Since we are already given with the formula to solve for the coordinates of point L, all we have to do is to perform the necessary operation in the item. The formula for the coordinates of the midpoint is,                    M = ((5 + 1) / 2 , (3 - 7) / 2)performing the operation,                   M = (3, -2)Thus, the coordinates of point L are (3,-2).
 Read more on Brainly - brainly.com/sf/question/2881337
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