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Sindrei [870]
3 years ago
8

What is the common ratio of the geometric sequence: -1/12, -1/2,-3,-18...?

Mathematics
1 answer:
makvit [3.9K]3 years ago
4 0
The answer is B 1/6 just divide the first number by the second one<span />
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a groups of 210 children attended a school picnic. only 60 of the children ate. what fraction of the children ate?
Amiraneli [1.4K]
The answer is 60/210.
I hope I'm right
Brainliest please!
5 0
3 years ago
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The critical points of a rational inequality are –1, 3, and 4. Which set of points can be tested to solve the inequality? x = 1
never [62]

Answer:

x=-3, x=1, x=3.5, and x=5

Step-by-step explanation:

Given the critical points (turning points) which represent the maximum or the minimum points, the set of points that can be tested to solve the inequality will consist of points to the right and to the left of these points. The set of points that solve the inequality will be simply the points where the graph of the function crosses the x-axis. From these information, the set of points will be as given above

4 0
3 years ago
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1) The angle of elevation of the top of the building at a distance of 50 m from its foot on a horizontal
seropon [69]

Answer:

the height of the building is 86.6m

Step-by-step explanation:

In the right triangle, the height which we are looking for is the opposite side, since it is opposite to the angle 60°

Now we need to find the height of the building

tanθ = Opposite side/Adjacent side

tan 60° = Opp side/Adj side

1.7321 = Opp side/50

1.7321 x 50 = Opp side

Opp side = 50 x 1.7321

Opp side = 86.6 m

Therefore, the height of the building is 86.6m.

8 0
3 years ago
Mayer High School's austerity committee wants to estimate the proportion of students that are pleased with the cleanliness of th
pentagon [3]

Answer:

Part A:

Type of Sampling: Convenience Sampling

It is a non-probability sampling technique. Though it is easy to carry out, it might be biased and can lead to under - representation or over - representation of particular groups within the sample. Since the sampling frame is not known and the sample is not chosen randomly, the inherent bias in convenience sampling means that the sample is unlikely to be representative of the population being studied.

Part B.

The committee can implement this method as follows:

Step 1: Assign Serial Number to each and every student of the total of 2,500 student names.

Step 2:Using Random Number Generator App, obtain 400 Random numbers.

Step 3; The 400 numbers got in Step 2 form the desired Sample of 400 students out of 2,500 students.

5 0
3 years ago
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Simplify the expression using properties of exponents. 25a^-5b^-8/5a^4b
ivanzaharov [21]

Answer: The simplification is 5*a^{-9}*b^{-9}

Step-by-step explanation:

Here we need to use the property:

\frac{a^n}{a^m} = a^{n - m}

We have the expression:

\frac{25*a^{-5}*b^{-8}}{5*a^{4}*b}

We can separate it in parts with the same base, then we can rewrite this as:

\frac{25*a^{-5}*b^{-8}}{5*a^{4}*b} = \frac{25}{5} \frac{a^{-5}}{a^4} \frac{b^{-8}}{b}

Using the first property we can rewrite this as:

\frac{25}{5} \frac{a^{-5}}{a^4} \frac{b^{-8}}{b} = 5*a^{-5 - 4}*b^{-8 - 1} = 5*a^{-9}*b^{-9}

6 0
3 years ago
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