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Levart [38]
3 years ago
14

An elementary school teacher wants to know if the words in a book are too difficult for her students. She reads the first senten

ce on the first page in every chapter and finds three words her students would not know. what is the sample in this situation
A.the three words her students would not know
B. the words that she reads that her students would know
c. every word in the book
d.every word in the first sentence of the first page of every chapter<—my answer
Mathematics
1 answer:
raketka [301]3 years ago
7 0

Answer:

d.every word in the first sentence of the first page of every chapter.

Step-by-step explanation

  • the sample space means the set of total possible outcomes or ALL possible outcomes.
  • so here, the situation is about the teacher reading a sentence.
  • the favorable outcome is the set which has all the words that the students would not know from all the words read  by the teacher or simply from the sample space.
  • since the teacher reads  the first sentence on the first page in every chapter , all the words in that sentence will be sample in this situation.
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Find an equation of the line described below. Write the equation is slope-intercept from ( solved for y), when possible. Through
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Answer:

The equation of the line that is passing through the point (5,4) and is parallel to x-axis would be y=4

Step-by-step explanation:

Given that the line passes through the point (5,4).

As the line is parallel to the x-axis, the slope of the line would be zero.

And we have point (5,4) from which the line is passing.

So, x_1=5\  ,\ y_1=4\ and\ m=0

The equation of the line passing through point (x_1,y_1) is

y-y_1=m(x-x_1)\\y-4=0(x-5)\\y-4=0\\y=4

So, the equation of the line that is passing through the point (5,4) and is parallel to x-axis would be y=4

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3 years ago
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2 years ago
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3 years ago
Tara wants to fix the location of a mountain by taking measurements from two positions 3 miles apart. From the first position, t
Black_prince [1.1K]

Answer:

Shortest distance from the mountain is 3.17 miles.

Step-by-step explanation:

From the figure attached,

Let a mountain is located at point A.

Angle between the mountain and point B (∠B) = 53°

Angle between the mountain and point C (∠C) = 78°

Distance between these points = 3 miles

Since, m∠A + m∠B + m∠C = 180°

m∠A + 53° + 78° = 180°

m∠A = 180°- 131° = 49°

By applying sine rule in triangle ABC,

\frac{\text{sin}(49)}{BC}=\frac{\text{sin}(53)}{AC}= \frac{\text{sin}(78)}{AB}

\frac{\text{sin}(49)}{3}=\frac{\text{sin}(53)}{AC}= \frac{\text{sin}(78)}{AB}

\frac{\text{sin}(49)}{3}=\frac{\text{sin}(53)}{AC}

AC = \frac{3\text{sin}(53)}{\text{sin}(49)}

AC = 3.17 miles

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AB = \frac{3\text{sin}(78)}{\text{sin}(49)}

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Therefore, shortest distance from the mountain is 3.17 miles.

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