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Tanya [424]
3 years ago
10

Find the area of the triangle. please explain/show your work. thank you <3

Mathematics
1 answer:
bonufazy [111]3 years ago
4 0
BC = a
AC = b
ACB = C

To find the area of such triangle we are going to use the formula;

1/2 * a * b * sine C

Substitute values.

1/2 * 4 * 4 * sine 45
= 5.65^2

Therefore the area of the triangle is 5.65^2
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find the width, ans height and area of 26'' TV screen that has an aspect ratio of 4:3. round to the nearest whole number.
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erform a simple calculation to match the screen size of a standard TV to that of a widescreen TV. If you currently have a 4:3 TV and you want to continue watching 4:3 on a widescreen TV, multiply the diagonal length of the older TV model by 1.22. The result would be the diagonal screen size that the widescreen TV would have to be to match the old model.

<span>Say you have a 40 inch (102 cm) TV with a 4:3 aspect ratio, but you're thinking about upgrading and you don't want your screen size to get smaller. You'd need to get at least a 50 inch (127 cm) screen to view in 4:3 without your picture getting smaller. That's because 1.22 x 40 = 49. Since 49 inch TVs are generally not made, you'd need to go up to 50 inches (127 cm).</span>
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2 years ago
F(9) if f (x)=5x-16, what is the answer to the math problem
Anastasy [175]
F(9)
sub 9 forx
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3 0
3 years ago
According to a study conducted by an​ organization, the proportion of americans who were afraid to fly in 2006 was 0. 10. A rand
algol13

According to the the concept of hypothesis testing, there is no evidence that the proportion of Americans who are afraid to fly has decreased.

Hypothesis testing:

Basically, in math hypothesis, it test the population on the basis of the sample data taken from the population using a simple random sampling.

Given,

According to a study conducted by an​ organization, the proportion of Americans who were afraid to fly in 2006 was 0. 10. A random sample of 1300  Americans results in 117 indicating that they are afraid to fly.

Now, we need to explain why this is not necessarily evidence that the proportion of Americans who are afraid to fly has.

While we looking into the given question,

Sample size, n = 1300

Number of Americans who were afraid to fly, x = 117

Now, we have to computing the sample proportion of Americans who afraid to fly,

Therefore, p = 117 / 1300 = 0.09

Then the Formulation of Hypotheses is written as,

Here the Null Hypothesis: H0: p≥0.10

And the alternative Hypothesis: Ha: p<0.10

Then the Left-tailed test of Test statistic is written as,

Here Let us assume that the level of significance, α = 0.05.

Then the Critical value, z≈−1.645

And the Decision rule is written as

If the value of  |z|<|z0.05|≈1.645: Do not reject the null hypothesis.

Otherwise If value of  |z|≥|z0.05|≈1.645: Reject the null hypothesis.

To know more about Hypothesis testing here.

brainly.com/question/28920252

#SPJ4

5 0
9 months ago
What are the dimensions of the rectangle shown below? Remember to use the axes on the coordinate grid to help you.
Dmitrij [34]
I think it is b...............
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3 years ago
What is 2 + 4+6x9+12?
katen-ka-za [31]

Answer:

72 ?

Step-by-step explanation:

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