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Nataliya [291]
3 years ago
15

i need help writing each decimal in word and expanded form.1)0.65  2)12.31  3)692.14  4)81.51  5)914.011  6)3,521.71  7)0.56  8)

8,948.03
Mathematics
1 answer:
DIA [1.3K]3 years ago
8 0
1)<span>sixty-five hundredths
2)</span><span>twelve and thirty-one hundredths
3)</span><span>six hundred ninety-two and fourteen hundredths
4)</span><span>eighty-one and fifty-one hundredths
5)</span><span>nine hundred fourteen and eleven thousandths
6)</span>three thousand, five hundred twenty-one and <span>seventy-one hundredths
7) </span><span>fifty-six hundredths
8)</span>eight thousand, nine hundred forty-eight and <span>three hundredths</span>
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To determine the height of a television tower, a person stands 135 ft from its base and determines the angle of elevation to the
Ipatiy [6.2K]

Answer:

  105.5 ft

Step-by-step explanation:

The tangent ratio is the ratio of the side opposite an angle to the adjacent side in a right triangle. Here, the side opposite the angle is the tower height, and the adjacent side is the distance to the tower. Then the appropriate relationship is ...

  tan(38°) = (tower height)/(135 ft)

Multiplying by the denominator gives ...

  tower height = (135 ft)·tan(38°) ≈ 105.473 ft

The height of the tower is about 105.5 feet.

7 0
4 years ago
Please help me answer this! Thank you! No links!
eimsori [14]

Answer:

139

Step-by-step explanation:

6 0
2 years ago
What is the value of x in the quadrilateral shown below
lora16 [44]
It is b 70 because in a quadrilateral the angles have to equal 360 and 85 + 150 + 55 equals 290 360 - 290 is 70
5 0
4 years ago
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5 0
4 years ago
Read 2 more answers
A research firm conducts a sample survey and discovers that 90% of people are more afraid of snakes than they are of flying. If
nikitadnepr [17]

Answer:

Different values of margin of error for different significance level.

Step-by-step explanation:

We are given the following in the question:

p =  90% = 0.9

Sample size, n  790

We have to find the margin of error.

Formula:

z_{stat}\sqrt{\dfrac{p(1-p)}{n}}

z_{critical}\text{ at}~\alpha_{0.05} = 1.96

Putting values, we get,

ME = \pm 1.96\sqrt{\dfrac{0.9(1-0.9)}{790}}\\\\ME = \pm 0.021

z_{critical}\text{ at}~\alpha_{0.10} = 1.64

ME = \pm 1.64\sqrt{\dfrac{0.9(1-0.9)}{790}}\\\\ME =\pm 0.018

z_{critical}\text{ at}~\alpha_{0.10} = 2.58

ME =\pm 2.58\sqrt{\dfrac{0.9(1-0.9)}{790}}\\\\ME =\pm 0.028

7 0
4 years ago
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