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7nadin3 [17]
3 years ago
6

Apply the 30º-60º-90º triangle theorem to find the length of the shorter leg of a triangle if the length of the hypotenuse is 20

20 cm. 103‾√103 cm 320‾‾‾√320 cm 320‾‾‾√‾‾‾‾‾√320 cm 1010 cm 20‾‾‾√20 cm
Mathematics
1 answer:
Brilliant_brown [7]3 years ago
5 0
YOU NEED A DIFFERENT MATH TEACHER
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Equation for perpendicular to the line -7x + 3y = -10j contains the point (-2,-4)
iogann1982 [59]

Answer:

y = 7/3x + 2/3

Step-by-step explanation:

-7x + 3y = -10

3y = 7x - 10

y = 7/3x - 10/3

-4 = 7/3(-2) + b

-4 = -14/3 + b

2/3 = b

7 0
3 years ago
Use dimensional analysis to convert .33 kilometers to meters.
lubasha [3.4K]
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Hope this helps!
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4 years ago
An experiment was conducted to assess the efficacy of spraying oats with malathion tocontrol the cereal leaf beetle.A sample of
lesantik [10]

Answer:

C

Step-by-step explanation:

Solution:-

- An experiment on the efficacy of spraying malathion on oats to control the growth cereal leaf beetle.

- A sample of n = 10 farms was taken at random. Each farm was either subjected to control group ( no spray ) or the treatment group ( spray ).

- Power ( β ) is the probability of rejecting the null hypothesis when, in fact, it is false. I.e the test statistics lie in the rejection region or the benefit of adding malathion is proven in-effective when in fact it is in-effective.

- Power is the probability of avoiding a ( Type II error ). Mathematically expressed as:

                    Type II Error = 1 - β

- Power is the probability of making a correct decision (to reject the null hypothesis) when the null hypothesis is false.

- The probability that a test of significance will pick up on an effect that is present.

Hence,

Answer: It is the ability to detect the effectiveness of malathion when in fact it is effective.

3 0
3 years ago
How may different arrangements are there of the letters in ALASKA? 7 of 10 (5 complete) HW Score: 26.15% E Que The number of pos
Lubov Fominskaja [6]
<h2>Answer:</h2>

The number of possible arrangements is : 120

<h2>Step-by-step explanation:</h2>

We know that in order to find the different arrangements which are possible we need to use the method of permutation.

The arrangement of a given word is calculated as the ratio of the factorial of number of letters to the product of factorial of numbers the number of times each letter is repeating.

The word is given to be:

                    ALASKA

There are a total of 6 letters in the given word

Out of which a letter "A" is  repeating  3 times.

Hence, the number of arrangements possible are:

        =\dfrac{6!}{3!}\\\\\\=\dfrac{6\times 5\times 4\times 3!}{3!}\\\\\\=6\times 5\times 4\\\\\\=120

4 0
3 years ago
Match the y coordinate with coo responding pairs of x
Anika [276]
<h3>Answer:</h3><h3>◎ See the attachment photo. </h3>

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