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rjkz [21]
3 years ago
13

Given the Cos(x) = -2/3, then the Sec(x) = ? What is the answer

Mathematics
2 answers:
Ostrovityanka [42]3 years ago
7 0

Answer:

sec x = -3/2

Step-by-step explanation:

sec = 1/cos

sec x = 1 / (-2/3)

sec x = -3/2

ivanzaharov [21]3 years ago
6 0

Answer:

sec x = - \frac{3}{2}

Step-by-step explanation:

cos x = \frac{-2}{3}\\\\sec x = \frac{1}{cosx}\\\\Therefore, sec x = \frac{3}{-2} = \frac{-3}{2}

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the answer for this question is 19 because you add them up and subtract the 7th graders

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4 years ago
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What is -4w + 7 = -10w + 37?<br><br> Please show me how to get it!
quester [9]
The answer is w=5 how I got it was u add 10 to both sides than minus seven to both sides than u divide and u get w=5
4 0
3 years ago
A study done by researchers at a university concluded that ​% of all student athletes in this country have been subjected to som
Nostrana [21]

The missing digits is highlighted in bold form

A study done by researchers at a university concluded that ​70% of all student-athletes in this country have been subjected to some form of hazing. The study is based on responses from 1800 athletes. What are the margin of error and​ 95% confidence interval for the​ study?

Answer:

Step-by-step explanation:

Given that:

The sample proportion \hat p = 0.70

The sample size n = 1800

At 95% confidence interval level:

The level of significance = 1 - 0.95 = 0.05

Critical value: Z_{0.05/2} = Z_{0.025} = 1.96

Thus, the Margin of Error E = Z_{\alpha/2}  \times \sqrt{\dfrac{\hat p ( 1- \hat p)}{n}}

= 1.96  \times \sqrt{\dfrac{ 0.70 ( 1-0.70)}{1800}}

= 1.96  \times \sqrt{\dfrac{ 0.70 ( 0.30)}{1800}}

= 1.96  \times \sqrt{\dfrac{0.21}{1800}}

= 1.96  \times \sqrt{1.16666667\times 10^{-4}}

the Margin of Error E = 0.021

At 95% C.I for the population proportion will be:

= \hat p \pm Z_{\alpha/2} \sqrt{\dfrac{\hat p(1- \hat p)}{n}}

= 0.70 ± 0.021

= (0.70 - 0.021, 0.70 + 0.021)

= 0.679, 0.721)

6 0
3 years ago
a quarterback is sacked for a loss of 5 yards.On the next day his team loses 15 yards.Then the team gains 12 yards on the third
Veronika [31]

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In math symbols, 0 is where the first down marker is. You start at -10.

First play, the sack: -10 - 5 = -15

Second play: -15 - 15 = -30

Third play: -30 + 12 = -18.

Looks like you have to punt on fourth down :)

8 0
4 years ago
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A young sumo wrestler goes on a special diet to gain weight.
Mama L [17]

Answer:

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w = 90.8                      (Your answer)

I hope this helped :)

6 0
3 years ago
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